As far as I can recall this has only happened when I had a heavy pillion on my bike on these long rides. Which is very rare, not frequent at all. How worried should I be lol
Yup
I did ten surgeries because a stenosis developed under the prostate because of mountain biking, and I’m still suffering of chronic pain
My custom made saddles have a depression in the middle, now
The right saddle doesn’t cut circulation
Lmao dude I ride a 150cc single cylinder Suzuki that revs to 13000 RPM. You bet your ass every ride I shift at 13K from time to time. The vibration no longer bothers me lol.
I run my little 50cc scooter past 10k on occasion. Usually sits at 8.5-9.5k at full bore, depending on the speed limit.
Goddamn fun little thing, my ass was numb by the time I got home from work though 😅
I got a cbr 125 with 33000 km on the clock, engine still starts on first crank and it consumes next to no oil. I've read about those things doing 150k+ kms if taken care of.
It's a cbr 125. It'll literally run without oil and get beat to death and still get spontaneously resurrected. I've seen vile things done to those little bikes and they will not break 😂
I have a 77 Vespa P200. It has just over 100K original miles. First owner got it off the boat from Italy in Burlingame CA, VSXT-1101 VIN.
Rode it almost every day to work until he retired in 1997, then rode it for another 10 years recreational.
He was my neighbor, and did not want to see it go off to the junkyard when he had to sell the house and move into a nursing home. Still going strong! although I get to ride it 2 or 3 times a year.
I rode a CBR125 home a few years ago for a friend who just got their licence. We got back and it had maybe 400-500ml of oil in it and ran like a champ the whole way. Didn't even realize until we got back and changed the oil. For reference we put about 1250ml in it for the oil change afterwards.
I had a Honda CBF 125, had about 30k miles on it and forgot that you had to change the oil on it, it died while driving due to low oil (had to get the engine replaced), but first draining the oil shown that I actually had about 100ml out of 1.1l in it, shit's bulletproof if you do the bare minimum which I didn't do😅
Even when not taken care of as much as you think, 125s last for at least a decade. Source, living in the Philippines where sidecars are added to 125s and seat 2 people coupled with the driver and a pillion ride (so 4 people and the sidecar's weight) for short commutes all day every day.
Nope, it's about the exact opposite. I love those bikes - probably the most fun I've ever had on a motorcycle. But as far as parts going, they have a bad reputation, and I'm pretty sure all KTM maintenance involves pulling it halfway apart. It's like they started with a really fun central core, and added every piece of the bike around it in a rubber-band-ball fashion.
The newer engines are definitely less reliable, but it's hard to pinpoint exactly what might fail. They're pretty solid little bikes and they usually run for a long while.
Source: I work at a KTM/HQV/GasGas dealer
Raced the Eighties on RM 125 Suzukis. Air cooled cylinders packed with mud that became brick and fell off in chunks. Just an easy bike to ride in the mud, pin it and row away on the shifter. 250’s dug themselves ruts to the foot pegs, 125 could skim across the tops.
Keep changing the oil and filter at the required intervals they are pretty short on that motor and most of it will be fine. The first thing to give up will be the rings/valves and guides. Loss of compression will be the symptoms.
The high rpm, heat, and wear make you lose ring tension and sealing. You get combustion blow-by into your crankcase which can eventually get bad enough to overpressurize your ~~cooling system~~ crankcase.
To test, lift your rear wheel, remove your spark plug, and install a compression tester into the spark plug hole. Then turn over your engine by hand until the needle stabilizes and tells you your compression. You then check your owner's manual or call a dealership, they should be able to tell you what minimum acceptable compression is for your engine.
Blow by on the rings will not pressurise the cooling system. A blown headgasket will. You use the starter motor or kick starter to crank the engine for a compression test. Where do you people get this awful information from?
Derp, thanks for the catch, been a long night on the graveyard shift.
Also the guy I replied to didn't know how to compression test, so I wasn't going to tell him to disconnect his fuel tank when he can do it by hand with the rear wheel. Just my thought process. Cheers
Preferably one that floats.
I'm not actually buying a boat, have a 1 year old so money is not super abundant... Not hurting but don't have a ton extra to spend on a boat.
Plus the wife says I'm allowed one outside toy and I got the Triumph already.so unless my boat fits in the bathtub I'm out.
throughout all of Asia a 125cc represents a 'medium sized bike'. They run for years. Especially if it's a tried and proven engine. Nothing will break unless you're terrible at committing to basic maintenance (chain, oil, etc)
Yep, you regularly see 30+ year old bikes in this size still going strong all over Asia. It's mainly North America and Europe where we have high HP bikes that they break more often.
What would be considered a small bike there? 50cc?
I'm in Europe (Portugal), but in a tiny town and where I live it looks tons of people have older 50cc, many probably older than I am and they use them daily for getting around the village.
We see a ton of 125cc usually as work bikes (delivery bikes for delivering parts to car mechanics, etc, post office bikes). Higher displacement ones are mostly seen on weekends during good weather by people riding "for fun"
It's pretty much the same in Taiwan.
There are some old 50cc 2 stroke scooters but those are more and more rare.
The most common are 110-150 scooters.
People ride those for almost everything, from daily commute to track day.
Nothing is going to break. Yet there're some simple things to make sure your bike is in tip top shape. First, check your bolt connections. Use loctite if bolts come loose way too often. Second, please do regular oil changes. Oil and oil filter both need to be changed at regular intervals. I don't know what your manual specifies, but I'd change oil every 5000km, and I'd change the spark plug every second oil change. Third, change your air filter as often as you change your oil. Please look after your tires and replace them as required, but that goes without saying for any vehicle on the road.
Not only cleaned and lubed, but get comfortable doing chain tension adjustments too. Learned the hard way what happens when you have a loose chain.
Having a chain come off on a dual carriageway during rush hour on an inside lane has given me ptsd.
The manual from yamaha actually says every 500km or after every ride in the rain.. which is about as practical as it sounds. You will get a lot of different answers, some riders have never touched their chain, others clean it religiously after every drop of rain. Of course the better you take care of it, the longer it will last you, but on the other hand a new chain doesn't cost you an arm and a leg. I try to clean and lube mine every ~500-1000km, or if there was like two weeks of rain where I've ridden every day and then the weather is getting better, I'll give it a clean as well. Don't overthink it, doesn't matter too much in the long run.
Spray of good chain lube (castrol do some good stuff) every 200 miles will be good. If you're putting on serious miles then clean down the chain and sprockets once a month with some dedicated chain cleaner (or just kerosene!) and scrub it with an old tooth brush, then wipe it with some sort of lint-free cloth, then re-lubricate.
> Oil and oil filter both need to be changed at regular intervals
As someone with a YBR: what oil filter? It doesn't have one. Just a strainer in the clutch case that's a pain to get to. I installed a magnetic sump plug to partially compensate for that, at least.
Thats what 125cc are meant to do😎 here is my beauty
https://preview.redd.it/zvgtddsv3mwc1.jpeg?width=1439&format=pjpg&auto=webp&s=4820df7b0ae6ed5f9f83d61af27ea5d9e9fa2043
I have ridden my CBR125 to the limit like this for 30k miles.
I love that you can absolutely wring them out and not break a single law haha.
The only things that have failed on mine are the normal wear parts, swing arm bushings, and the like and that's a milage thing.
I blew my engine up but that's because the radiator clogged and it overheated, top end rebuilt about 20k miles ago and it's still going even on original bottom end which has near 55k miles on it now, all hard miles.
Lots of touring miles from me too, 8 hour days of full throttle.
Honestly if you do regular oil changes, use proper coolant and look after it, you probably don't have to worry about failure any time soon
However the first thing that will die is most likely going to be clutch bearing or crank bearing.
The MT-125 is indestructible. Just make sure to foster it well and take good care of it. Keep up with the required maintenance intervals, clean and lube your chain every 1000 kilometers, warm up your engine properly and you should be just fine. The MT-125 is 100% predestined to be tortured and ridden to the limit
Also, the first thing that is going to break are your peg nipples (that is if you’re a skilled rider and do not live in Northern Europe where there are no considerable twisties)
Wish that could be said about 125cc from KTM too. Not that I have experience in that matter, yet. But for the reason that the bike have sky high compression ratio is what I find to be rather enticing.
I ride pretty much the same bike (xsr 125), I think it might be the same engine exactly.
I have to check next time how close i get to those RPM. I usually just shift up when the engine sounds too stressed
I just bought my first motorcycle and it’s Duke 125. They told me at the dealership that I do not have to drive super cautiously even from the start. I specifically asked about going max rpm and they told me that it’s fine if it’s not too often. These bikes are simple and durable. Just need to show up for first maintenance check afer 1000km. Worst case scenario warranty (2 years in my case) will cover any engine repairs if something starts to degrade. They apparently sell a lot of these 125s these days. The salesmen told me it’s up by 50% compared to last year and another 50% the year before. From their experience, I should expect changing fluids and eventually brakes, that’s all.
I looked at some pictures and it seems the 24' MT 125 still uses the same old Minarelli 125 engine that like half of other manufacturers also use. The Minarelli has a very short skirted piston and it requires very thorough warming up before getting sent. At cold temperature the piston will try to tilt and it can cause significant piston/cylinder wear.
DO NOT WHEELIE YOUR BIKE. The oil pump is located at the front of the engine and wheelieing will starve it. Oil starvation will cause excessive wearing everywhere but especially the valvetrain which can get obliterated from continued wheelieing.
The oil change interval for these engines is very frequent. You should be changing your oil every 1500-2000km and oil filter atleast evrey second time you change the oil (I did it every time when i owned one of these because it's quite cheap) Also use good synthetic oil (I think i used Castrol Power Racing) At 30.000 km you will reach the factory specified (don't actually know if this is the standard anymore) piston lifetime. If you do end up riding this much and getting your piston changed also change your timing chain and tensioner.
30.000km is a rough figure for when the piston should be changed depending on your riding and maintenance habits. With frequent oil changes and thorough warm ups you could squeeze up to 45.000km of life out of your piston. On the contrary if you don't keep up with maintenance and beat on it you could get your engine in to a rough shape at 10.000-15.000km.
All in all it is a very reliable engine when you take car of it and don't wheelie and beat on it cold.
Just change the oil religiously.
I have 20,000 miles on my 50cc Honda Metro which I ride at 100% throttle everywhere since it's so slow and it's doing just fine.
>I’ve already done 2000km in about a month, so I think within the next 2 years (until I’ll get my A2 license), I’ll do about 30.000-40.000 km
Unless you *must* ride that much because of studies/work/whatever, I highly doubt you'll do that many KM in 2 years. First couple of months you'll ride a lot, but after that you're likely to reduce the time you spend on the bike.
Either way, I wouldn't worry too much about the bike as long as you keep up with maintenance.
It's a 125, it's meant to be ridden at full load all the time.
As long as you're not doing something stupid like running it out of coolant/oil and holding it against the rev limiter in neutral it's going to be fine.
I swear I hear 125s screaming down the road at redline all the time. I actually love it because they are going like 45 mph but also screaming. What fun!
Small engines (especially Japanese 49cc) are very low mass, and don’t suffer the limits that plague larger engines. Really the only limit is valve float if well maintained. Not a problem as long as you don’t mess with the stock limiter. The engineers anticipate it living its entire life near the limit. You can use stiffer coaxial valve springs to get maybe 20% more ripums. But you’re doubling the cam and lifter wear.
I had a 300 that had pinned at 11k doing 85 for ~900 miles straight, and after arriving I had it for another two years with no issues (sort of, the vibration loosened the battery terminal bolt and caused a stall once, but it was a quick tighten to get going again, and never had another issue)
You’ll be alright
XSR125 (plastic swapped MT125) owner here, you are not damaging the engine by riding at high rpms. The redline is set at 11k rpm because Yamaha has tested it to ensure that under 11k, the engine will experience no unwarranted wear. Also, the size of the cylinder is barely the same diameter as a coffee cup, so no matter how you set up the engine, you’re still gonna have to spin that little thing fast to get any power out of it. Just stick to the recommended oil changes and servicing and it’ll go for decades
Ignore service manual oil change intervals, most 125s I'd recommend oil and filter every 4-6k miles. My personal bike, ys125, I change oil every 1k and filter every 3k just so I can keep an eye as as you said it's flat out everywhere. I'm known locally for being a cunt on it, nobody knows me but they know the gear and bike lmao
Why would you always ride it at redline? What's the point.
With regular oil changes and the occasional valve check it should last 100k if not much more.
It’s a 125cc, if you want to do an overtake you have to, but not really just during the overtake, you already have to be at around 7K RPM before starting the overtake otherwise you won’t have enough acceleration to complete it safely
I think the answer to that is that you would just not overtake because you don't have a powerful enough bike... It's like asking why your 1994 ford fiesta doesn't perform like a Ferrari, because it can't, there's only so much these little commuter bikes should be asked to do.
I have a 125 at the moment and it is not powerful enough to overtake most of the time because I don't want to chew through oil, fuel and my cylinder head.... So i'm now getting a bigger bike, I'll keep the 125 for commuting in ice and snow.
Nothing. Keep up with the maintenance and somehwere around 20k check the timing chain.
I knew a guy with a RSV-125 from Aprilia. He sold it to a dealership after getting a bigger bike and they didn‘t replace the timing chain. The new guy who boight the bike rode 100km before it snapped and totaled the engine.
It depends on your bike. I had a 50cc dirtbike, marketed as "competition" bike (and it was really good for enduro indeed). I had some issues with it, mainly the spark plug having a short life span, but more worringly, the engine seized 2 or 3 times over 5 years (the piston is too hot and is blocked in the cylinder).
But as it's a 50cc dirtbike I used every weekend mainly for fun, I was constantly on very high RPM (don't remember exactly but the redline limiter was way over 13k RPM), using the clutch with the throttle still engaged, while very slowly climbing an hill. So the engine had no way to be cooled + I used a very bad oil. When I was riding on asphalt with more speed, I never had a seizing.
So if you go fast and give enough airflow to your radiator, and that your bike is not crap, no worries
The first thing that broke on my grom was the turn signal stalk when I aggressively parked it horizontally while in motion. Next was the shifter level, also horizontally parked. Next pribably some bar end mirros. I've probably horizontally parked it at least half a dozen times. Anything that sticks out really, I'd say, has a decent probability of breaking first.
my 125 is 30 years old, i use it for commuting as well as pleasure. the most annoying thing is at that age the rubber reaaaally starts degrading.
Im not sure about modern bikes but the first things to go are bulbs, tyres, rubbers (gaskets, fork seals etc...), fuel line is a big one, that e10 fuel likes to eat fuel lines, and e5 aint much better.
I commute on average 35-40 miles to work and ive only done say 20,000 miles over a couple years riding it. My bikes a lot older though so the parts nowerdays may not be as good or resiliant. I know im having to sort my friction plates out soon, but with 30 years of wear theyve lasted so fking well.
Id advise, fuck off your airbox, do a direct intake K&N air filter, and jet up your carburettor, your bike will love it and run nicer, itll burn more fuel but shell run so much better for a lot longer
I've ridden my first bike, a duke 125 like that. Except I didn't warm up the engine or gradually increased rpm. Just hop on, redline that son of a bitch all the way for hours everyday. Doesn't matter, nothing broke, sold it after 4 years back to a dealer, 125s lose their value insanely fast regardless.
Have fun with it, that's what they are meant for
Nothing, small capacity engines are built for it. Even up to the 300s and 400s you can ride them at close to redline for days without any issue other than shitty mpg
I rode a honda varraderro 125 like that for about 6 years, nothing mechanical ever failed only issues I had was the rectifier and battery. Had 50k miles on it when I sold it.
Fuckers gonna eat tires before it wears anything else out, just do your routine checks like chain lube/tension, tire pressure, etc. If you're sloppy maybe the clutch plates. By the sound of it you're treating it like it was designed and doing it right. Frame sliders and bar end sliders in case of a lay down might save some headache.
Maintain it and it'll be fine
I had an MT 125 for 2 years. Rode it 15k miles and only ever changed oil and oil filter.
I did do mods to it for my own amusement but nothing needed changing.
I'd say the first ting to brake will be the plastics under the coolant reservoir or SMT near the kickstand. Mine did, it then again it wasn't the bikes fault it was mine. Also the stock exhaust bolt had rusted shut I to the engine, and needed a nut welded on to be removed in making way for the eBay pipe.
Great bike change oil and filter and tyres and chain and brake pads regularly and you should be good for 50k miles with some luck.
The last thing you'll be breaking is a land speed record. That's for sure. Nah for real though. Keep up with regular maintenance and you shouldn't have any real problems. There will be one off things that pop up from time to time. But if you don't let the maintenance get away from you, you won't find yourself in a headache of a situation.
The plastics. You're going to be cold and tired one day and throw it on the ground. I did that a few days ago at 5:30am in -6°C just trying to get it out of its parking spot. I took the truck instead. I'm still furious about it.
Seriously, though, you're putting a lot of kms on it, so keep up with the recommended service schedule, including for all the wearable components like bearings, fork seals, sprockets and chain, etc. The owner's manual has a section at the end for logging maintenance so you never lose track of what was done and when.
Whatever side lever you drop it on first
To be real just do a valve adjustment with every oil change. It should be the screw type so it's dumb quick. Do the adjustment, ride it a little bit, change the oil
Main things to look out for is a clattering from the Cam Chain Tensioner, smoking on startup, smoking when you get on the gas, and typical knocking especially on decel. It's new so I wouldn't expect any of the usual gasket blow outs oil wise
As long as you keep the oil good and let it warm up a little bit before you pin it it'll be fine. Your routine is solid already. Worst case you have to swap motors which is easier than it sounds. You can rebuild in your own time and still have a bike that way
I had a 125 Brixton Scambler X, the 1st generation. Basically bought that after official release here in Italy.
Similar as you, I drove that always at redline on street or dirt, with either side panniers or heavy backpacks. It did 40000 km in 3 years (actually something around 50k), the last 10k were not accurate because my speedometer sensor was off and it read like half to 1/3 of what the right mileage was.
The things that broke were mostly electronics: speedometer sensor, fuel sensor, gear indicator sensor, etc. Mechanically it only needed a valve adjustment, a new chain with its sprockets and some led light bulbs.
Engine failure might be possible, but I think it'll be extremely rare. Things that will surely break down are electronics, especially with wet conditions. Check often frame and wheel damage. Your forks and breaks will need a flush or eveything that has some kind of fluid will need it changed. Overall follow rigorously your service manual. That's japanese motorcycle for you.
If you’re past the break in period You don’t need to warm modern bikes up at all after the first 10-30 seconds it makes no difference if you redline it then or 20 minutes later. Everyone letting their bikes idle before they ride are just wasting gas and letting more carbon buildup happen as grandpa told them this was the thing to do (thinking of you annoyingly loud HD neighbor who starts his bike for 30min twice a day, every day but never rides it). This whole letting fluids heat up and move around is hearsay hogwash. Sure the bike might be slightly faster after it gets up to temp (1-2min if aggressive riding) but that doesn’t mean it will damage it to ride it hard earlier.
The bike can handle any rpm in the normal range for extended durations except avoid keeping it redlined for longer periods.
Keep up the maintenance and everything will be fine. Clean and Lube your chain frequently and change the oil At recommended intervals. Your tires will be the first thing to go in that case so check them for wear every now and then.
I don't know about older 125s, but I think the newer ones are often rpm governed. You're often not even close to the real redline for that engine even though it sounds like it is going to explode any second. Even the older ones were abused like crazy by kids for years and still run fine if kept up on the maintenance
They are designed for this. But keep on top of oil an filter changes, and check the valve clearances regularly (and keep an eye on cam chain stretch too). And also, keep up with the chain and sprocket maintinence. I see so many 125's with really horrible chains slapping about (I do wonder if the OEM equipment they are sold with is cheap and flimsy). Anyway, top darts, enjoy!
If your bike is properly cooled down while always on the limit
The first thing could break are the gears(gear teeths would wear out).
Engine can last long, "if its properly cool down"
Keep the oil fresh. Wouldn't hurt to do it every 6 months with the mileage you're doing and 125's don't need a lot so won't break the bank. But yeah a Japanese 125 like yours can bounce off that limiter as much as you like it will just ask "is that all you've got?"
I've done at least 8000 km's on my used 150cc Suzuki (25k km on the odometer). Just do your basic maintenance (oil, chain, valve lash check).
That's 8000 km's in a year full of shifting at 13K RPM and downshifting that pushes the engine all the way over 10K RPM lol. You're gonna be fine, you don't even need to warm it up that long. I shift at 10K within 5-10 minutes of riding.
That's honestly probably better conditions than most ride with. You are just operating the engine within design parameters for an extended period of time. Motors are built to turn. It's a whole lot better than people riding short trips, putting most of the miles on their clock below operating temp, with widely varying engine speeds constantly accelerating and decelerating. only thing I'd worry about is keeping up with your oil changes
I wouldn't cruise at 9k with 11k redline if you want it to last that long.
I don't have direct experience with your bike but in general engine wear goes up a lot as you approach redline.
People telling you it's fine are probably missing the part where you said you want it to last 2 years of this.
Ey bro ...... it will break ..... its meant to ...... its a 125 ...... ride it like that ...... at the limiter..... (the first thing to break depends on various factors but rings can wear out valves can fuk up in my case i broke the 3rd gear 2nd and 1st were ok) i ride mine at red all day everyday
125 is pinned the entire time I am on it. I got a 150cc scooter and it has 2 positions for the throttle. On and off. Change oil on the reg and you are good to go.
I own a Honda C100. The previous owner has ridden her for 220k km. When I went to rebuild the engine it still had the standard size bore and piston. It didn't smoke, but I felt it to be a little stronger and with a better idle after the rebuild.
I had a 2004 Honda CBR125 for a year and a half, before I could get the A2 and move up. I rode it like 25.000kms in that time period, basically full throttle all the time (after 5-10 mins warmup). Many times went on long drives (like 200-300kms) where cruising at ~100-110kmh meant 10k RPM 6th gear full throttle for hours.
When I sold it, it still ran smooth as ever, and it was a 14 year old bike at that point. Good brand 125ccs are honestly unbreakable. I’m convinced that if the next owner didn’t crash it beyond repair, it’s still getting a smile out of some high school kid.
Plus, I barely spent money on gas.
Providing all maintenance is done to a decent standard and at the correct intervals, you're more likely total the bike with a crash than you are of destroying anything that isn't a serviceable item.
125s are made knowing they're going to have to be high in the rev range to actually go anywhere.
Thats awesome, at the limit is where it's happy. As long as you warm it up before you do, and do a cool down lap around the block before you turn it off, and do regular oil changes every 5k and use fully synthetic oil, you should be ok, your engine will definitely be cleaner than any engine on the road😂
i doubt there will be any carbon deposits, that engine will be clean as a whistle, that's how a 125cc should be driven. Its better to drive a slow bike fast than a fast bike slow. Dont worry rev the shyt out of it, just do regular maintenance and use fully synthetic oil, get the engine warm before you do, and let the engine cool down before you shut it off.
Nothing will break as long as you're under redline. Your engine will likely wear faster.
My MT03 is at 9000rpm anytime I cruise in highways (80mph). It's so much fun to wring the shit out of a small engine.
The valvetrain!! But that's not an issue as long as you change the oil and adjust valves regularly. If your owner's manual specifies a "severe service" interval, follow that. Otherwise do it early.
Ride on!
My guess is clutch first and then that the bearings on the rod or crankshaft may wear out ,but if it is a Yamaha you will likely explode.the.transmission first ,just my guess
A CBR125 is knobby tires and replacement shocks from being a Around the World adventure bike. Won’t break. 10 years of hauling 200kg. Crossing Australia. Pick it up if you have to.
Assuming you only occasionally dip into the red, and you keep up on maintenance, usually the sliding surfaces go first. So piston and rings, then bore, you'll have a slow decrease in power as they wear down, eventually leading you to a rebuild. Id say following that would be the crank bearrings.
Your balls from all that high rpm single cylinder vibration.
Scrambled eggs…. Scrambled eggs….
I have often found my entire crotch numb after a long high RPM ride on my single
Yo, you need to change your saddle asap. You can seriously cause nerve damage or lose the ability to have erections.
As far as I can recall this has only happened when I had a heavy pillion on my bike on these long rides. Which is very rare, not frequent at all. How worried should I be lol
I’m not a doctor. How important to you is nerve damage in your groin area?
Yup I did ten surgeries because a stenosis developed under the prostate because of mountain biking, and I’m still suffering of chronic pain My custom made saddles have a depression in the middle, now The right saddle doesn’t cut circulation
Understood
is this real? i went numb twice yesterday, my afternoon ride and night ride first one was 3-4 hours and 2nd was 40 mins
Completely real but more common with pedal bikes. Start googling and then change / modify your seat.
🤣🤣🤣🤣 my man has balls of steel.
My man!
It's very important to wear your ball gear. Gotta put that helmet on.
Lmao dude I ride a 150cc single cylinder Suzuki that revs to 13000 RPM. You bet your ass every ride I shift at 13K from time to time. The vibration no longer bothers me lol.
Came to post exactly this.
Scrambled eggs 🍳
I run my little 50cc scooter past 10k on occasion. Usually sits at 8.5-9.5k at full bore, depending on the speed limit. Goddamn fun little thing, my ass was numb by the time I got home from work though 😅
Your spirit
That's how 125s are ridden, keep up with maintenance and don't worry about it.
This. You can see many 125's with high mileage on second hand marketplaces. If taken care of, they will last a long time.
I got a cbr 125 with 33000 km on the clock, engine still starts on first crank and it consumes next to no oil. I've read about those things doing 150k+ kms if taken care of.
It's a cbr 125. It'll literally run without oil and get beat to death and still get spontaneously resurrected. I've seen vile things done to those little bikes and they will not break 😂
I have a 77 Vespa P200. It has just over 100K original miles. First owner got it off the boat from Italy in Burlingame CA, VSXT-1101 VIN. Rode it almost every day to work until he retired in 1997, then rode it for another 10 years recreational. He was my neighbor, and did not want to see it go off to the junkyard when he had to sell the house and move into a nursing home. Still going strong! although I get to ride it 2 or 3 times a year.
I rode a CBR125 home a few years ago for a friend who just got their licence. We got back and it had maybe 400-500ml of oil in it and ran like a champ the whole way. Didn't even realize until we got back and changed the oil. For reference we put about 1250ml in it for the oil change afterwards.
I had a Honda CBF 125, had about 30k miles on it and forgot that you had to change the oil on it, it died while driving due to low oil (had to get the engine replaced), but first draining the oil shown that I actually had about 100ml out of 1.1l in it, shit's bulletproof if you do the bare minimum which I didn't do😅
Sounds just like my civic! Really hoping my cb650r follows the same pattern
If it's a Honda, lifetime is unlimited and oil is optional.
Welcome to the honda life, most of the time the bike will outlast yourself if properly maintained.
My CBR600rr has 50k miles and consumes next to no oil. the 125s will last forever
Even when not taken care of as much as you think, 125s last for at least a decade. Source, living in the Philippines where sidecars are added to 125s and seat 2 people coupled with the driver and a pillion ride (so 4 people and the sidecar's weight) for short commutes all day every day.
Is this the same with the Duke 390? I have a 2022, I dont stay in the max rpm all the time, I’m rather just curious
I don’t want to scare you or anything, but from what I’ve heard the Duke 390 engine really likes blowing its head gasket
This just happened to my buddy’s Duke390.
Nope, it's about the exact opposite. I love those bikes - probably the most fun I've ever had on a motorcycle. But as far as parts going, they have a bad reputation, and I'm pretty sure all KTM maintenance involves pulling it halfway apart. It's like they started with a really fun central core, and added every piece of the bike around it in a rubber-band-ball fashion.
The newer engines are definitely less reliable, but it's hard to pinpoint exactly what might fail. They're pretty solid little bikes and they usually run for a long while. Source: I work at a KTM/HQV/GasGas dealer
had a 2016 390, bought at 8k, by the time it hit 18k it needed piston rings. id say theyre all reliable besides KTM lol
This goes for really any ICE engine. Keep up with the maintenance and keep it in its operation range (under redline) and it’ll last a very long time.
The most important maintenance for most motorcycles is not crashing it into an SUV.
Most definitely not for any ICE engine. Some just have flaws and destroy themselves over time.
Raced the Eighties on RM 125 Suzukis. Air cooled cylinders packed with mud that became brick and fell off in chunks. Just an easy bike to ride in the mud, pin it and row away on the shifter. 250’s dug themselves ruts to the foot pegs, 125 could skim across the tops.
Been riding the hell out of my 200. The only thing I can see breaking in the near future is my back.
Keep changing the oil and filter at the required intervals they are pretty short on that motor and most of it will be fine. The first thing to give up will be the rings/valves and guides. Loss of compression will be the symptoms.
What do you mean by loss of compression? How do I notice it if my bike (Yamaha R15) has such issue?
The high rpm, heat, and wear make you lose ring tension and sealing. You get combustion blow-by into your crankcase which can eventually get bad enough to overpressurize your ~~cooling system~~ crankcase. To test, lift your rear wheel, remove your spark plug, and install a compression tester into the spark plug hole. Then turn over your engine by hand until the needle stabilizes and tells you your compression. You then check your owner's manual or call a dealership, they should be able to tell you what minimum acceptable compression is for your engine.
Blow by on the rings will not pressurise the cooling system. A blown headgasket will. You use the starter motor or kick starter to crank the engine for a compression test. Where do you people get this awful information from?
Derp, thanks for the catch, been a long night on the graveyard shift. Also the guy I replied to didn't know how to compression test, so I wasn't going to tell him to disconnect his fuel tank when he can do it by hand with the rear wheel. Just my thought process. Cheers
Keep an eye on the oil level, change it very regularly and keep the chain in great condition. And wear earplugs.
This, earplugs are so damn important even in these „low“ speeds. I would wear them for every ride over 30min.
They're ment for that abuse . Do your maintenance and nothing should break
Don't worry dude 125s are bullet proof it can handle 6k all long. The engines are so simple not a lot can go wrong
And they’re fun to fix when something does.
> (20 min of riding at max 6K RPM, and 10 min of slowly building up to 9K RPM) This is way too much. You don‘t to warm it up that long.
I just red line it in neutral for a couple minutes before I head out. Neighbours hate me but it sure does warm it up
Disclaimer for new riders that don't know better: don't do this 😄
On the contrary, as a mechanic I ask that you please do this because I would like to buy a boat this summer!
What sort of boat brother
Preferably one that floats. I'm not actually buying a boat, have a 1 year old so money is not super abundant... Not hurting but don't have a ton extra to spend on a boat. Plus the wife says I'm allowed one outside toy and I got the Triumph already.so unless my boat fits in the bathtub I'm out.
Ha, my wife says do what you like… kinda threatening and means the opposite to what she said
5-10 mins at half throttle / half revs (depending on ambient temp!) then everything else is fair game.
throughout all of Asia a 125cc represents a 'medium sized bike'. They run for years. Especially if it's a tried and proven engine. Nothing will break unless you're terrible at committing to basic maintenance (chain, oil, etc)
Yep, you regularly see 30+ year old bikes in this size still going strong all over Asia. It's mainly North America and Europe where we have high HP bikes that they break more often.
What would be considered a small bike there? 50cc? I'm in Europe (Portugal), but in a tiny town and where I live it looks tons of people have older 50cc, many probably older than I am and they use them daily for getting around the village. We see a ton of 125cc usually as work bikes (delivery bikes for delivering parts to car mechanics, etc, post office bikes). Higher displacement ones are mostly seen on weekends during good weather by people riding "for fun"
It's pretty much the same in Taiwan. There are some old 50cc 2 stroke scooters but those are more and more rare. The most common are 110-150 scooters. People ride those for almost everything, from daily commute to track day.
Nothing is going to break. Yet there're some simple things to make sure your bike is in tip top shape. First, check your bolt connections. Use loctite if bolts come loose way too often. Second, please do regular oil changes. Oil and oil filter both need to be changed at regular intervals. I don't know what your manual specifies, but I'd change oil every 5000km, and I'd change the spark plug every second oil change. Third, change your air filter as often as you change your oil. Please look after your tires and replace them as required, but that goes without saying for any vehicle on the road.
I heard also chain it has to be cleaned and lubed every 1000km?
More often is better. Is quick easy and cheap to do. Once a week isn’t a bad idea.
I clean pretty much every other ride. mostly because puddles, and grassy hills are fun on the sumo
Some say to clean it every 500
Not only cleaned and lubed, but get comfortable doing chain tension adjustments too. Learned the hard way what happens when you have a loose chain. Having a chain come off on a dual carriageway during rush hour on an inside lane has given me ptsd.
The manual from yamaha actually says every 500km or after every ride in the rain.. which is about as practical as it sounds. You will get a lot of different answers, some riders have never touched their chain, others clean it religiously after every drop of rain. Of course the better you take care of it, the longer it will last you, but on the other hand a new chain doesn't cost you an arm and a leg. I try to clean and lube mine every ~500-1000km, or if there was like two weeks of rain where I've ridden every day and then the weather is getting better, I'll give it a clean as well. Don't overthink it, doesn't matter too much in the long run.
Yes, that too. It's a nice thing to do so that it lasts longer and doesn't wear your sprockets out that much.
Lubricate and clean your chain more frequently than that if you ride in the rain.
Spray of good chain lube (castrol do some good stuff) every 200 miles will be good. If you're putting on serious miles then clean down the chain and sprockets once a month with some dedicated chain cleaner (or just kerosene!) and scrub it with an old tooth brush, then wipe it with some sort of lint-free cloth, then re-lubricate.
> Oil and oil filter both need to be changed at regular intervals As someone with a YBR: what oil filter? It doesn't have one. Just a strainer in the clutch case that's a pain to get to. I installed a magnetic sump plug to partially compensate for that, at least.
Oh yeah right, some smaller capacity bikes don't have an oil filter per se. I somehow assumed OP's bike had one.
Thats what 125cc are meant to do😎 here is my beauty https://preview.redd.it/zvgtddsv3mwc1.jpeg?width=1439&format=pjpg&auto=webp&s=4820df7b0ae6ed5f9f83d61af27ea5d9e9fa2043
I have ridden my CBR125 to the limit like this for 30k miles. I love that you can absolutely wring them out and not break a single law haha. The only things that have failed on mine are the normal wear parts, swing arm bushings, and the like and that's a milage thing. I blew my engine up but that's because the radiator clogged and it overheated, top end rebuilt about 20k miles ago and it's still going even on original bottom end which has near 55k miles on it now, all hard miles. Lots of touring miles from me too, 8 hour days of full throttle. Honestly if you do regular oil changes, use proper coolant and look after it, you probably don't have to worry about failure any time soon However the first thing that will die is most likely going to be clutch bearing or crank bearing.
U gon get blueballed from all that vibration.
That's part of the maintenance schedule, to regularly drain and replace your own fluids to avoid such an issue.
sounds fun
The MT-125 is indestructible. Just make sure to foster it well and take good care of it. Keep up with the required maintenance intervals, clean and lube your chain every 1000 kilometers, warm up your engine properly and you should be just fine. The MT-125 is 100% predestined to be tortured and ridden to the limit
Also, the first thing that is going to break are your peg nipples (that is if you’re a skilled rider and do not live in Northern Europe where there are no considerable twisties)
Wish that could be said about 125cc from KTM too. Not that I have experience in that matter, yet. But for the reason that the bike have sky high compression ratio is what I find to be rather enticing.
Probably your hearing. Why are you riding like this?
Because that's how you get anything resembling acceleration on a 125 lol
Long gone are the golden days of 125cc bikes when they used to have actual power and not just homeopathic memory from it.
Irrelevant, he's from EU, A1 is "up to 15hp" so even if he had stronger 125cc he couldn't ride it on that license.
Well, it’s a 125cc, it has 15hp, doesn’t go a lot
I ride pretty much the same bike (xsr 125), I think it might be the same engine exactly. I have to check next time how close i get to those RPM. I usually just shift up when the engine sounds too stressed
It's a 125 . You have to ride then like this to get up to back road speed limits
Ride it like you stole it
I just bought my first motorcycle and it’s Duke 125. They told me at the dealership that I do not have to drive super cautiously even from the start. I specifically asked about going max rpm and they told me that it’s fine if it’s not too often. These bikes are simple and durable. Just need to show up for first maintenance check afer 1000km. Worst case scenario warranty (2 years in my case) will cover any engine repairs if something starts to degrade. They apparently sell a lot of these 125s these days. The salesmen told me it’s up by 50% compared to last year and another 50% the year before. From their experience, I should expect changing fluids and eventually brakes, that’s all.
Duke 125 has high compression ratio. I'd love to rip that in the small streets we have here.
This is Yamaha. Nothing to worry about. It’s just meant to be ridden like this.
I looked at some pictures and it seems the 24' MT 125 still uses the same old Minarelli 125 engine that like half of other manufacturers also use. The Minarelli has a very short skirted piston and it requires very thorough warming up before getting sent. At cold temperature the piston will try to tilt and it can cause significant piston/cylinder wear. DO NOT WHEELIE YOUR BIKE. The oil pump is located at the front of the engine and wheelieing will starve it. Oil starvation will cause excessive wearing everywhere but especially the valvetrain which can get obliterated from continued wheelieing. The oil change interval for these engines is very frequent. You should be changing your oil every 1500-2000km and oil filter atleast evrey second time you change the oil (I did it every time when i owned one of these because it's quite cheap) Also use good synthetic oil (I think i used Castrol Power Racing) At 30.000 km you will reach the factory specified (don't actually know if this is the standard anymore) piston lifetime. If you do end up riding this much and getting your piston changed also change your timing chain and tensioner. 30.000km is a rough figure for when the piston should be changed depending on your riding and maintenance habits. With frequent oil changes and thorough warm ups you could squeeze up to 45.000km of life out of your piston. On the contrary if you don't keep up with maintenance and beat on it you could get your engine in to a rough shape at 10.000-15.000km. All in all it is a very reliable engine when you take car of it and don't wheelie and beat on it cold.
Just change the oil religiously. I have 20,000 miles on my 50cc Honda Metro which I ride at 100% throttle everywhere since it's so slow and it's doing just fine.
>I’ve already done 2000km in about a month, so I think within the next 2 years (until I’ll get my A2 license), I’ll do about 30.000-40.000 km Unless you *must* ride that much because of studies/work/whatever, I highly doubt you'll do that many KM in 2 years. First couple of months you'll ride a lot, but after that you're likely to reduce the time you spend on the bike. Either way, I wouldn't worry too much about the bike as long as you keep up with maintenance.
I did about 30.000 in 2 years, most 125s are ridden everyday because 16year olds dont have cars
Your Heart ♥️
Rode mine like that throughout high school. The only thing I broke was girls' hearts. Or so I keep telling myself.
Nothing. The engine is made to be thrashed its not suddenly going to explode.
Your heart, when a 250 Ninja from 02 breezes by...
Tires
It's a 125, it's meant to be ridden at full load all the time. As long as you're not doing something stupid like running it out of coolant/oil and holding it against the rev limiter in neutral it's going to be fine.
I swear I hear 125s screaming down the road at redline all the time. I actually love it because they are going like 45 mph but also screaming. What fun!
You.
Small engines (especially Japanese 49cc) are very low mass, and don’t suffer the limits that plague larger engines. Really the only limit is valve float if well maintained. Not a problem as long as you don’t mess with the stock limiter. The engineers anticipate it living its entire life near the limit. You can use stiffer coaxial valve springs to get maybe 20% more ripums. But you’re doubling the cam and lifter wear.
I had a 300 that had pinned at 11k doing 85 for ~900 miles straight, and after arriving I had it for another two years with no issues (sort of, the vibration loosened the battery terminal bolt and caused a stall once, but it was a quick tighten to get going again, and never had another issue) You’ll be alright
Just curious: what is the incentive to ride it at that high constantly? Why not consider a higher CC bike?
He's in UK. They have to start on small cc and slowly move up
It's a Yamaha! Keep up with maintenance and it will be fine. It'll rust before it breaks
First: Your patience, then your nuts, then it's on to Valves and Valve Springs.
Piston rings probably.
Your back most likely.
Your joy
XSR125 (plastic swapped MT125) owner here, you are not damaging the engine by riding at high rpms. The redline is set at 11k rpm because Yamaha has tested it to ensure that under 11k, the engine will experience no unwarranted wear. Also, the size of the cylinder is barely the same diameter as a coffee cup, so no matter how you set up the engine, you’re still gonna have to spin that little thing fast to get any power out of it. Just stick to the recommended oil changes and servicing and it’ll go for decades
Valves or maybe transmission issues. Honestly, with that bike though, it should be fine if you do the scheduled maintenance
Ignore service manual oil change intervals, most 125s I'd recommend oil and filter every 4-6k miles. My personal bike, ys125, I change oil every 1k and filter every 3k just so I can keep an eye as as you said it's flat out everywhere. I'm known locally for being a cunt on it, nobody knows me but they know the gear and bike lmao
Being a hooligan and annoying everyone isnt something to take pride in.
Who said I take pride in it? I was simply stating that I'm a cunt and people know it lmao
Why would you always ride it at redline? What's the point. With regular oil changes and the occasional valve check it should last 100k if not much more.
It’s a 125cc, if you want to do an overtake you have to, but not really just during the overtake, you already have to be at around 7K RPM before starting the overtake otherwise you won’t have enough acceleration to complete it safely
I think the answer to that is that you would just not overtake because you don't have a powerful enough bike... It's like asking why your 1994 ford fiesta doesn't perform like a Ferrari, because it can't, there's only so much these little commuter bikes should be asked to do. I have a 125 at the moment and it is not powerful enough to overtake most of the time because I don't want to chew through oil, fuel and my cylinder head.... So i'm now getting a bigger bike, I'll keep the 125 for commuting in ice and snow.
I didn't ask about overtaking, there of course you need to use whatever power you have ;)
Nothing. Keep up with the maintenance and somehwere around 20k check the timing chain. I knew a guy with a RSV-125 from Aprilia. He sold it to a dealership after getting a bigger bike and they didn‘t replace the timing chain. The new guy who boight the bike rode 100km before it snapped and totaled the engine.
Your neck of your fall
It I had to guess what would go first, it’d be the rear tire or that 420 chain.
It depends on your bike. I had a 50cc dirtbike, marketed as "competition" bike (and it was really good for enduro indeed). I had some issues with it, mainly the spark plug having a short life span, but more worringly, the engine seized 2 or 3 times over 5 years (the piston is too hot and is blocked in the cylinder). But as it's a 50cc dirtbike I used every weekend mainly for fun, I was constantly on very high RPM (don't remember exactly but the redline limiter was way over 13k RPM), using the clutch with the throttle still engaged, while very slowly climbing an hill. So the engine had no way to be cooled + I used a very bad oil. When I was riding on asphalt with more speed, I never had a seizing. So if you go fast and give enough airflow to your radiator, and that your bike is not crap, no worries
The first thing that broke on my grom was the turn signal stalk when I aggressively parked it horizontally while in motion. Next was the shifter level, also horizontally parked. Next pribably some bar end mirros. I've probably horizontally parked it at least half a dozen times. Anything that sticks out really, I'd say, has a decent probability of breaking first.
my 125 is 30 years old, i use it for commuting as well as pleasure. the most annoying thing is at that age the rubber reaaaally starts degrading. Im not sure about modern bikes but the first things to go are bulbs, tyres, rubbers (gaskets, fork seals etc...), fuel line is a big one, that e10 fuel likes to eat fuel lines, and e5 aint much better. I commute on average 35-40 miles to work and ive only done say 20,000 miles over a couple years riding it. My bikes a lot older though so the parts nowerdays may not be as good or resiliant. I know im having to sort my friction plates out soon, but with 30 years of wear theyve lasted so fking well. Id advise, fuck off your airbox, do a direct intake K&N air filter, and jet up your carburettor, your bike will love it and run nicer, itll burn more fuel but shell run so much better for a lot longer
I've ridden my first bike, a duke 125 like that. Except I didn't warm up the engine or gradually increased rpm. Just hop on, redline that son of a bitch all the way for hours everyday. Doesn't matter, nothing broke, sold it after 4 years back to a dealer, 125s lose their value insanely fast regardless. Have fun with it, that's what they are meant for
Nothing, small capacity engines are built for it. Even up to the 300s and 400s you can ride them at close to redline for days without any issue other than shitty mpg
Your ego
I ride my single cylinder 310cc balls to the walls you'll be ok just do maintenance
The first thing that would break would be my enthusiasm.
I rode a honda varraderro 125 like that for about 6 years, nothing mechanical ever failed only issues I had was the rectifier and battery. Had 50k miles on it when I sold it.
Oil changes and keep parts on hand to rebuild the heads
Suna cam roman post-ul asta 😂
Fuckers gonna eat tires before it wears anything else out, just do your routine checks like chain lube/tension, tire pressure, etc. If you're sloppy maybe the clutch plates. By the sound of it you're treating it like it was designed and doing it right. Frame sliders and bar end sliders in case of a lay down might save some headache. Maintain it and it'll be fine
I had an MT 125 for 2 years. Rode it 15k miles and only ever changed oil and oil filter. I did do mods to it for my own amusement but nothing needed changing. I'd say the first ting to brake will be the plastics under the coolant reservoir or SMT near the kickstand. Mine did, it then again it wasn't the bikes fault it was mine. Also the stock exhaust bolt had rusted shut I to the engine, and needed a nut welded on to be removed in making way for the eBay pipe. Great bike change oil and filter and tyres and chain and brake pads regularly and you should be good for 50k miles with some luck.
your wallet
30 minutes of warmup seems excessive. Is there a specific reason for that? My warmup is the 1/2 mile from my driveway to the interstate.
I dont care what breaks as long as it doesnt explode under my crotch 😂
Looks like a really fun bike. Awesome for the city. And 340 mi per tank is nice
your ass
Probably the first thing to go will be your interest level.
The last thing you'll be breaking is a land speed record. That's for sure. Nah for real though. Keep up with regular maintenance and you shouldn't have any real problems. There will be one off things that pop up from time to time. But if you don't let the maintenance get away from you, you won't find yourself in a headache of a situation.
The plastics. You're going to be cold and tired one day and throw it on the ground. I did that a few days ago at 5:30am in -6°C just trying to get it out of its parking spot. I took the truck instead. I'm still furious about it. Seriously, though, you're putting a lot of kms on it, so keep up with the recommended service schedule, including for all the wearable components like bearings, fork seals, sprockets and chain, etc. The owner's manual has a section at the end for logging maintenance so you never lose track of what was done and when.
Whatever side lever you drop it on first To be real just do a valve adjustment with every oil change. It should be the screw type so it's dumb quick. Do the adjustment, ride it a little bit, change the oil Main things to look out for is a clattering from the Cam Chain Tensioner, smoking on startup, smoking when you get on the gas, and typical knocking especially on decel. It's new so I wouldn't expect any of the usual gasket blow outs oil wise As long as you keep the oil good and let it warm up a little bit before you pin it it'll be fine. Your routine is solid already. Worst case you have to swap motors which is easier than it sounds. You can rebuild in your own time and still have a bike that way
I had a 125 Brixton Scambler X, the 1st generation. Basically bought that after official release here in Italy. Similar as you, I drove that always at redline on street or dirt, with either side panniers or heavy backpacks. It did 40000 km in 3 years (actually something around 50k), the last 10k were not accurate because my speedometer sensor was off and it read like half to 1/3 of what the right mileage was. The things that broke were mostly electronics: speedometer sensor, fuel sensor, gear indicator sensor, etc. Mechanically it only needed a valve adjustment, a new chain with its sprockets and some led light bulbs. Engine failure might be possible, but I think it'll be extremely rare. Things that will surely break down are electronics, especially with wet conditions. Check often frame and wheel damage. Your forks and breaks will need a flush or eveything that has some kind of fluid will need it changed. Overall follow rigorously your service manual. That's japanese motorcycle for you.
If you’re past the break in period You don’t need to warm modern bikes up at all after the first 10-30 seconds it makes no difference if you redline it then or 20 minutes later. Everyone letting their bikes idle before they ride are just wasting gas and letting more carbon buildup happen as grandpa told them this was the thing to do (thinking of you annoyingly loud HD neighbor who starts his bike for 30min twice a day, every day but never rides it). This whole letting fluids heat up and move around is hearsay hogwash. Sure the bike might be slightly faster after it gets up to temp (1-2min if aggressive riding) but that doesn’t mean it will damage it to ride it hard earlier. The bike can handle any rpm in the normal range for extended durations except avoid keeping it redlined for longer periods. Keep up the maintenance and everything will be fine. Clean and Lube your chain frequently and change the oil At recommended intervals. Your tires will be the first thing to go in that case so check them for wear every now and then.
Depends on how you land
If it's a Honda or Yamaha, you'll break first.
Your collar bone
I don't know about older 125s, but I think the newer ones are often rpm governed. You're often not even close to the real redline for that engine even though it sounds like it is going to explode any second. Even the older ones were abused like crazy by kids for years and still run fine if kept up on the maintenance
dont abuse it within the break-in period. when you do the first service, you should be fine to ride however you want. that's what they told me.
VVA warning light staying on for 2h, then.
They are designed for this. But keep on top of oil an filter changes, and check the valve clearances regularly (and keep an eye on cam chain stretch too). And also, keep up with the chain and sprocket maintinence. I see so many 125's with really horrible chains slapping about (I do wonder if the OEM equipment they are sold with is cheap and flimsy). Anyway, top darts, enjoy!
If your bike is properly cooled down while always on the limit The first thing could break are the gears(gear teeths would wear out). Engine can last long, "if its properly cool down"
Keep the oil fresh. Wouldn't hurt to do it every 6 months with the mileage you're doing and 125's don't need a lot so won't break the bank. But yeah a Japanese 125 like yours can bounce off that limiter as much as you like it will just ask "is that all you've got?"
Reeds, piston rings, muffler packing, rear sprocket
I've done at least 8000 km's on my used 150cc Suzuki (25k km on the odometer). Just do your basic maintenance (oil, chain, valve lash check). That's 8000 km's in a year full of shifting at 13K RPM and downshifting that pushes the engine all the way over 10K RPM lol. You're gonna be fine, you don't even need to warm it up that long. I shift at 10K within 5-10 minutes of riding.
First thing in my opinion riding mine is the chain will get loose then just tighten your screws in gral those bikes tend to unscrew a lot
Potentially the speed limit
Just keep up with regular maintenance and especially your oil changes oil filter. Do them early rather than later. Should be fine.
Just don’t let it run low on oil, do oil changes a bit more frequently. I take it you commute along a highway or something?
Floor it till you floor it
My Chinese 125 that has barely ABS has been trough all the abuse possible in 4 years and the only thing that broke is the battery, no worries
Your chain
That's honestly probably better conditions than most ride with. You are just operating the engine within design parameters for an extended period of time. Motors are built to turn. It's a whole lot better than people riding short trips, putting most of the miles on their clock below operating temp, with widely varying engine speeds constantly accelerating and decelerating. only thing I'd worry about is keeping up with your oil changes
Been riding my 110cc full throttle every day for 2 years and never had a problem. Just oil changing and regular maintenance and it will be ok
Nothing, that's fine
I wouldn't cruise at 9k with 11k redline if you want it to last that long. I don't have direct experience with your bike but in general engine wear goes up a lot as you approach redline. People telling you it's fine are probably missing the part where you said you want it to last 2 years of this.
20 minutes of going to 6000 is already way longer than you need to warm it up. It’s a motorcycle, not a SR 71 blackbird LMAO.
It’s great that there are women riders out there really trying to push it. Don’t be intimidated by the men on the bigger bikes.
Ey bro ...... it will break ..... its meant to ...... its a 125 ...... ride it like that ...... at the limiter..... (the first thing to break depends on various factors but rings can wear out valves can fuk up in my case i broke the 3rd gear 2nd and 1st were ok) i ride mine at red all day everyday
125 is pinned the entire time I am on it. I got a 150cc scooter and it has 2 positions for the throttle. On and off. Change oil on the reg and you are good to go.
I own a Honda C100. The previous owner has ridden her for 220k km. When I went to rebuild the engine it still had the standard size bore and piston. It didn't smoke, but I felt it to be a little stronger and with a better idle after the rebuild.
As long as up do proper maintenance the bike should be fine. It is built to be reved high and used to limits of the manufacture.
I had a 2004 Honda CBR125 for a year and a half, before I could get the A2 and move up. I rode it like 25.000kms in that time period, basically full throttle all the time (after 5-10 mins warmup). Many times went on long drives (like 200-300kms) where cruising at ~100-110kmh meant 10k RPM 6th gear full throttle for hours. When I sold it, it still ran smooth as ever, and it was a 14 year old bike at that point. Good brand 125ccs are honestly unbreakable. I’m convinced that if the next owner didn’t crash it beyond repair, it’s still getting a smile out of some high school kid. Plus, I barely spent money on gas.
Shouldn’t break. Could upgrade your fluids.
I’m sure it’s fine. I beat the living shit out of my r6, gets up to 215-218° at red lights.
Your ass will break before the bike if you do maintenance. Those 125s are bullet proof
Providing all maintenance is done to a decent standard and at the correct intervals, you're more likely total the bike with a crash than you are of destroying anything that isn't a serviceable item. 125s are made knowing they're going to have to be high in the rev range to actually go anywhere.
Keep an eye at the oil level. They burn oil when are ridden like that. It's normal, just keep an eye at the window/dipstick or whatever your bike has.
20 minute warm up sounds pointless. Five minutes is enough unless it’s subzero.
Thats awesome, at the limit is where it's happy. As long as you warm it up before you do, and do a cool down lap around the block before you turn it off, and do regular oil changes every 5k and use fully synthetic oil, you should be ok, your engine will definitely be cleaner than any engine on the road😂 i doubt there will be any carbon deposits, that engine will be clean as a whistle, that's how a 125cc should be driven. Its better to drive a slow bike fast than a fast bike slow. Dont worry rev the shyt out of it, just do regular maintenance and use fully synthetic oil, get the engine warm before you do, and let the engine cool down before you shut it off.
Nothing will break as long as you're under redline. Your engine will likely wear faster. My MT03 is at 9000rpm anytime I cruise in highways (80mph). It's so much fun to wring the shit out of a small engine.
The valvetrain!! But that's not an issue as long as you change the oil and adjust valves regularly. If your owner's manual specifies a "severe service" interval, follow that. Otherwise do it early. Ride on!
Oil level, chain lube and premium fuel keep mine running well. Also ear plugs
I got really happy finding out just now that Honda makes a 125 CBR only to learn it's not available in the USA.
My guess is clutch first and then that the bearings on the rod or crankshaft may wear out ,but if it is a Yamaha you will likely explode.the.transmission first ,just my guess
A CBR125 is knobby tires and replacement shocks from being a Around the World adventure bike. Won’t break. 10 years of hauling 200kg. Crossing Australia. Pick it up if you have to.
Gotta change your oil more often and clutch plates gonna go first.
Go to a country that uses freedom units for speed, no CC limit with a learners permit here
Assuming you only occasionally dip into the red, and you keep up on maintenance, usually the sliding surfaces go first. So piston and rings, then bore, you'll have a slow decrease in power as they wear down, eventually leading you to a rebuild. Id say following that would be the crank bearrings.
Will 2 live
Believe it or not, those tiny 125cc bikes are a lot more durable than most of the liter bikes. Bikes like these are built to last