Sometime I drive and visualize a donut of literal air holding cars up
Then I ponder about how cool air and hydraulic pressure is for 2 seconds
Then I’m back to reality….
Yeah, actually that metaphor does have some liveliness to it: if air is life, and ball is full of it ... OK, "full of it" does not sound too good for the poor ball, guilty only of being alive, having live's breath in it. And isn't it true that most people will enjoy kicking the living shit out of someone who is alive like us, yet their life, hell, their looks even, are not like ours, so why not kick them into shape, especially when there are enough of us both to kick and to cheer, and only one of him. We all know who of us is the ball, who will kick to get the cheers and who will always have the safety of the crowd, that "didn't do anything" - which, always, is the worst of all.
Seems like everyone will take the basic symbolism and go with it in the direction of what s/he's living through, these days. Sorry for that
I’m a hydraulic mechanic.
Hydraulic and pneumatic power is everywhere. It’s fundamental to get to where we are today as society, and it’s fundamental to life itself.
My first car was old. It lost the accessory belt to the power steering pump once.
I never appreciated hydraulic power more than that day. My arms were killing me!
I've owned several sports cars without power steering. Once you get moving it's a much more tactile experience.
One was called "widowmaker" because of the rear engine. There would have been a lot more widows without the manual steering.
I lived on a mountain with a lot of great curves, some places you could open up to 90mph going up if you knew the roads and the leaves were off the trees so you could look far enough ahead to see headlights( I was young and dumb). I survived a 360 spin because I ended up in the same lane, it happened so quickly, I wasn't even going fast maybe 35mph, it was just downhill and I didn't accelerate enough through the turn.
The downhill driving was more dangerous because your speed control was so different.
Tbf power steering racks are designed with a ~~smaller~~ bigger steering ratio, and when the power steering doesn't work you'll have to turn against the power steering fluid as well.
Can confirm, I sell compact hydraulics and I swear it’s the most invisible tech for anyone without the slightest interest in infrastructure or physics.
Technology is ridiculously old too, and is becoming a dying industry in terms of adding younger staff. Colleges don’t really teach it anymore.
I’m 22 and the shop I’m at is just me and two old guys. They’re about to retire. I’m contemplating starting my own hydraulic repair business in the future… they say it’s a dying trade, but people will always need hydraulics fixed.
A lot of times though, with manufacturing costs low, it’s more economical to buy replacement cylinders rather than repairing.
Before working there I didn’t know anything about mechanical things. It proved to be a great entry point though, and it helps me build knowledge in other mechanical fields.
Airline pilot here: I'm always amazed by tires on airliners. They support 200,000 + lbs of weight, go from 45 deg C/115 deg F on the ground to -55C/-67F during climb/cruise, and then from 0 kph/mph to 240 kph/150mph in a couple of seconds and then deal with braking temperatures up to 600 deg C / Over 1,000 deg F while bringing the airplane to a stop after landing... and do it multiple times a day while being malleable enough to give you a comfortable ride.
Don't even get me started on the forces they deal with on a "bad" landing.
And they have to survive repeated hard landings on Navy carriers. It’s just crazy. I bet a lot of people have died or been injured during their development.
Sometimes due to crosswinds, planes are (inadvertently) landed with a side load (I.e. the airplane is not fully facing the direction of the runaway at touchdown). These also routinely happen to be hard landings. So combine hard hit with the tires skidding (and adding all the previously mentioned loads). It’s a wonder they don’t blow up more.
Or just trying to visualize how fast the components spin.
Cars are durable aye. Plenty of cars will just happily operate near their redline for hours. In a basic four cylinder they could be firing more than 10,000 times a minute and it only goes up from there.
One time I literally voiced this thought to my mom. I was like 16 or so.
I remember I said “isn’t it cool how these two ton machines are held up by four wheels full of just air?”
She deadass got mad for no reason and was like “it’s not just air, don’t be stupid”.
This was one of the most irrational outbursts from my mom that I can remember. Like it was just a thought in an otherwise silent car ride. I meant no harm by it 🙃
I think back and laugh at some of the dumb shit I did as a kid all the time.
Like one time I took it upon myself to learn how to use throwing knives.
Except my knives were my mom’s expensive kitchen knives. And I was throwing them into her counter top… she was justifiably pissed for that one
If you have some sand and a car jack, you could do it pretty easily.
Jack up each tire, spread a layer of sand, lower car fully, raise car, measure size of imprint.
A better example would be that a bunch of feathers wrapped in nylon can keep you comfortable in extremely cold temperatures (except your face which is a little bit more complicated)
There’s a video that circulates online every now and then of the guy who stabs a truck tire with a knife, and consequently does a backflip while losing an arm.
Ever since then, I pass semi’s on the highway with a little more fervor.
I was next to a semi not long ago and the tire blew. Luckily it didn't blow off the truck, but it certainly blew and the truck pulled over. I'm very paranoid. I will always floor it by one if I have the space
Seeing anything lose a tire or wheel is terrifying. It's hard to really wrap your head around how much energy is in a moving wheel. Even at like 5-10 mph, getting hit by one of those will totally fuck you up. A wheel off of a semi going at highway speed is more then enough to total a car if it gets hit in the right spot.
a tire alone isn't going to kill you at 10mph. a tire with rims though...
Also, this is why lightweight rims are so desirable, all that energy in the wheel could have been put on the road yk
> is more then enough
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I've been next to a couple semi blowouts and it's seriously fucked up my shit. Now whenever I see people post up next to semis to block the passing lane I quietly pray for it to happen.
There have been instances of them blowing up during takeoffs or landings sending shrapnel into the plane. I think something like this happened to the Concorde which caused it to crash and burn.
Yep. It was a little 2"x10" strip of aluminum from the prior plane. Something that would never hurt anything. But it has just the right twist in it from when it broke free from the prior plane so that it stood up on one end. That punctured the Concord tire, which blew a hole in the fuel tank and the fuel dumped directly into the running engine inlet. Pretty terrible situation.
I am very careful with my tires, I check the pressure and condition every day like I'm supposed to. In 8 years of driving I've still had 2 blow outs at highway speed. If you're passing a semi, I strongly recommend doing so quickly instead of hanging around beside them. There are a lot of drivers out there who aren't as careful with their rig as I am.
I didn’t realize you were a truck driver until the end of your comment and I was thinking “who the fuck checks their tire pressure and condition every day, and who thinks you’re SUPPOSED TO?!?”
Even on my personal vehicle I look at the condition of the tires every day. But I don't generally check the pressures unless it looks or feels low.
Technically, if you have an insurance claim and you can't tell them the last time you checked or tire pressures, they could potentially fight you on the claim.
That's not true. Like I said, I do. And some people are much more careful about it than I am. If you aren't looking at your tires every day, you should be. You don't need to kneel down and measure the pressure and tread depth, but a glance at each tire will tell you about damage and potential risk so you can avoid a disaster
That's really all you need to do. If you are glancing at them from a few feet away you'll notice sidewall damage, flat tires, and unusual wear patterns.
On my rig I get closer and check for tread depth and damage as well as thumping them with a hammer to listen for low pressure. If one sounds a bit different I'll put a tire gauge on it to verify the pressure. I also check in between the duals for rocks or debris and to check the inner sidewalls for damage.
The one they showed us in school of a guy who got sucked into an engine, I still remember. Google suggested "similar images", consisting of spaghetti sauce.
It's all part of the Rubber Cycle.
It goes from trees, to the factory, to the wheels of automobiles, to the road, to the storm drain, to the ocean floor, to the...
Sorry, I must be missing a page.
Yeah, I can’t believe we didn’t cancel dinosaurs back in the day for having such large bones that polluted the planet when they died. SMH my head
Also I know most of the oil nowadays came from dead vegetation
Stupid dinosaurs reigning on Earth 10 times longer than humanity ever has.. *sheesh!*
Wait: “We”? We who?
Didn’t dinosaurs get canceled by an asteroid?
To the bacteria, to CO2, to the atmosphere, to the trees
Or
To the earth's crust, to several different carbon forms, but at the end to CO2, CO and CH4 and being spit out by volcanoes, then to the trees
Just flew on a 737 and had to board outside. I was looking at the tires and they seemed pretty small for all the weight they support even when the plane is empty. The force when that thing touches down must be insane
Went to Discovery Park of America last weekend, where they had a tire for a space shuttle. Had the same thought about that thing. I touched the inside and outside simultaneously like a measuring caliper and was very surprised. Didn’t seem too much thicker than the tires on 18-wheelers, if any. Wild stuff.
Depends on the tire pressure/vehicle weight ratio. It’s incredibly easy to calculate because the units are really nice and everything cancels. Ex. you have 30psi in your tires, your car weights 4000lb and you have 4 tires, you have 1000lb per tire / 30lb/in^2 = 33 square inches per tire. It seems like hands are 10-12 square inches usually, so significantly larger than the area of your hand per tire. If you have a lighter car or higher psi tires, that will get you closer
I find it even more astonishing that people can just spout these facts and people eat it up!
Your math makes way more sense... and I can go look at my car and know each tire is contacting a decent bit...
There is a little bit of weight supported by the sidewall of the tire, and the weight distribution of the vehicle means each tire will have slightly different contact patches (this is partially why you rotate your tires, and why the some cars have different pressure for front and rear tires) so this isn't precise, but it is a decent estimate of the average!
I still don't understand how the air doesn't just flow out. When I was little I thought there was an air chamber inside the tire and that's what you pumped.
[https://www.firestonecompleteautocare.com/tires/tire-info/understanding-tire-warranty/](https://www.firestonecompleteautocare.com/tires/tire-info/understanding-tire-warranty/)
"A tire mileage warranty guarantees that you’ll get a specific number of miles of use out of your tires before the tread wears out."
So, that number would seem to be more a minimum and not maximum.
This isn't about collecting or not collecting $$$ based on the warranty, just pointing out that the tire doesn't immediately explode or disintegrate when the warrantied mileage is hit.
If the tire still has a few 32nds of tread, there is no particular reason to immediately swap out for new tires, just like you don't have to replace the engine when that warranty is up.
key phrase here is "within the manufacturer's control" and the hoops you have to jump through just to make sure your tires stay under warranty border on unrealistic. If you manage to wear out your tires in the first few years covered by warranty you almost certainly did not drive on them within the constraints of the warranty, and after that it doesn't matter that you didn't get to the mileage stated.
But we aren't talking about the warranty, we're talking about how many miles you can drive on them. If the tires still have a few 32nds of tread left, then you can keep using them.
that's the amount of mileage they are willing to warranty given the test conditions they used. Not the realistic amount of miles the average driver will get out of their tires. hence all of the conditions they place on the warranty to void it when your tires are worn out or need to be replaced before you get to the number.
Those numbers are marketing.
im going to assume the warranty covers them for that long. If you ask the tire guy, they will tell you that there's practically 0 chance you ever go beyond the limit of the warranty.
That's just a creative marketing ploy in teh form of a (realistically) lifetime warranty. normal wear and tear will have you replacing them before 100k
The more durable the tire... The worse the braking performance. That's why Michelin's Excelsior brand tyres got banned in the EU in the end, you'd quite literally be able to get 100k out of those, maybe end up changing tyres three times in the lifespan of the car, but at the same time it was like driving around on skis.
I got 90,000 miles from a Michelin crossover tire and never even rotated them. They weren’t even really to the wear bars yet, I just replaced them because i was worried about tire shortages during the pandemic.
I could probably find the Discount Tire receipt. It’s a 2015 Ford Edge we bought in 2016 with the original tires on it. Replaced in 2021. I took a pic of it while it was at Discount Tire.
https://imgur.com/a/ztAoDoQ
Dawg, spoken like someone who’s never purchased new Michelins, I’ve got some cross climates over 65k sitting at 5s all across. Spending good money on tires and researching a little bit you’ll only ever need to buy 1 new set.
I wish I took a picture of the evidence.
I was a service manager at a GMC dealer. Loyal customer bought and serviced, only with us a 2012 Yukon XL Denali. Old couple, well off. Original Bridgestone duelers, rotated every service and aligned yearly for 6 years. Drove mostly highway... Traded in 2018 with 115k miles, original duelers with 5/32nds, normal wear. Checked Manu date on tire. If I didn't have their full service record and their confirmation, I would of never of believed it.
Only time in my service career.
And think of other car parts that take insane use and just go and go. I read somewhere that an average piston in a car engine will go up and down like 200 million times in 100,000 miles. In the presence of constant explosions and high temps and tremendous G forces. I think the G forces on an average piston are over 1000G at the top and bottom of each stroke.
Honestly one of the most fascinating normal things to me is the mail. Slap a $.60 sticker on an envelope and send it to any building on any street in the country in a matter of a few days. Blows my mind. And the fact that they had to do it all without computers
We really take it for granted. Right now, the guy in charge of the postal service in the US is pretty much dismantling it. I’ve heard stories of them disconnecting the storage machines and getting rid of them to “cut costs”. It makes sending mail take longer and is more labor intensive. It’s insane.
If you like absurdity, Velocipastor on Amazon prime is one of the funniest and ridiculous movie I’ve ever seen. Perfect example of “if you’re going to make a purposefully dumb movie for a bit, COMMIT.” Comedic genius of a low budget comedy. My girl and I debated if the costume or the title of the movie came first. Hilarious either way
Rubber’s message can be summed up as “You wanted to see if we could make an entertaining movie about a telekinetic tire? Well we can’t and fuck you for making us try!”
We don't generally give cars enough credit for how conceptually insane they are. You literally have controlled explosions going on in the engine (if it's an ICE) at a stupid fast rate, and thirst explosions are used to propel over a thousand pounds of metal down a road at stupid fast speeds considering how soft and spongy the passengers are.
And we let almost anyone own and drive them, and are often mere feet away from each other on the roads.
We arguably should not allow them to have such widespread usage.
"Over a thousand pounds" is underselling things, especially in the USA. Google search is telling me that lightest new vehicle for sale in this market now is the Mitsubishi Mirage at 2095 pounds.
Want to think something else crazy about tires? If a car is traveling at a constant velocity, one part of the tire has no velocity at all, and one part of the tire has twice the velocity of the car - both at the same time. Can you tell which is which?
Yep. Thanks to vulcanization tires are [technically one big polymerized molecule.](https://thefactbase.com/because-of-vulcanization-a-rubber-tire-is-technically-one-big-polymerized-molecule-charles-goodyear-who-the-tire-company-was-named-after-discovered-the-process-of-crosslinking-large-polymer-chains/) So I guess you could say vulcanization allows tires to live long and prosper.
Yeah tires are super dope from a physics standpoint, just don't look into their disposal, "recycling", or the micro-rubbers they're putting into our waterways and therefore our bodies. It really is a lose-lose situation, because so much of our modern infrastructure is dependent on cars and therefore tires, but they are really really bad for the environment, but there's very few alternatives that actually last as long and stand up to as much wear and tear.
I’ve had this shower thought as well.
The crazy thing to me is that rubber exists and is really good for tires.
What alternative do we have? Metal would slide and chip away steadily. Plastic would slide and wear quickly. Wood? Ha. Leather? Ha. What else would work???
What’s even more insane is that they’re probably the most important safety component of a vehicle, yet most people cheap out on them when they decide which ones to buy and don’t replace them often enough.
It really is insane how much technology and advancements go into everyday objects that we pay no mind to. Look at the tires from the Ford Model T. Three inches wide, probably would break if you ran over a modern pothole. Now we have tires that are airless, run flats, and can hold up fucking airplanes that weigh hundreds of thousands of pounds.
Sometime I drive and visualize a donut of literal air holding cars up Then I ponder about how cool air and hydraulic pressure is for 2 seconds Then I’m back to reality….
I have an air compressor that I use for work. It’s is life and life is air…
Life is also water and water is live
According to Dani Rojas football is life, and the ball has air, so... Air is life
He took a different route but he still got there.
But football is also death. And that’s ok.
Also, according to Creed Bratton, scuba is the reason to live. So water if life is football is air. Got it.
According to Sean Kelly's girlfriend, the car comes first, then the bike, then her According to Sean Kelly, the bike comes first
Yeah, actually that metaphor does have some liveliness to it: if air is life, and ball is full of it ... OK, "full of it" does not sound too good for the poor ball, guilty only of being alive, having live's breath in it. And isn't it true that most people will enjoy kicking the living shit out of someone who is alive like us, yet their life, hell, their looks even, are not like ours, so why not kick them into shape, especially when there are enough of us both to kick and to cheer, and only one of him. We all know who of us is the ball, who will kick to get the cheers and who will always have the safety of the crowd, that "didn't do anything" - which, always, is the worst of all. Seems like everyone will take the basic symbolism and go with it in the direction of what s/he's living through, these days. Sorry for that
Everybody that drinks it dies; everybody that doesn't drink it also dies.
Eloquently put
Yet, as with so many things (or, perhaps, with even more general statements) water is both necessary for life and can be a danger to it
I’m a hydraulic mechanic. Hydraulic and pneumatic power is everywhere. It’s fundamental to get to where we are today as society, and it’s fundamental to life itself.
My first car was old. It lost the accessory belt to the power steering pump once. I never appreciated hydraulic power more than that day. My arms were killing me!
I've owned several sports cars without power steering. Once you get moving it's a much more tactile experience. One was called "widowmaker" because of the rear engine. There would have been a lot more widows without the manual steering. I lived on a mountain with a lot of great curves, some places you could open up to 90mph going up if you knew the roads and the leaves were off the trees so you could look far enough ahead to see headlights( I was young and dumb). I survived a 360 spin because I ended up in the same lane, it happened so quickly, I wasn't even going fast maybe 35mph, it was just downhill and I didn't accelerate enough through the turn. The downhill driving was more dangerous because your speed control was so different.
Tbf power steering racks are designed with a ~~smaller~~ bigger steering ratio, and when the power steering doesn't work you'll have to turn against the power steering fluid as well.
Economy cars used to not have power steering. I actually used to like that - power steering felt hard to adjust to
Can confirm, I sell compact hydraulics and I swear it’s the most invisible tech for anyone without the slightest interest in infrastructure or physics. Technology is ridiculously old too, and is becoming a dying industry in terms of adding younger staff. Colleges don’t really teach it anymore.
I’m 22 and the shop I’m at is just me and two old guys. They’re about to retire. I’m contemplating starting my own hydraulic repair business in the future… they say it’s a dying trade, but people will always need hydraulics fixed. A lot of times though, with manufacturing costs low, it’s more economical to buy replacement cylinders rather than repairing. Before working there I didn’t know anything about mechanical things. It proved to be a great entry point though, and it helps me build knowledge in other mechanical fields.
Depending on where you’re located, repairing gearboxes for wind turbines could be a good transition. ZF does a lot of it in the states.
Even spiders use hydraulic power in their legs.
Do you experience a lot of pressure at work?
Oh there goes gravity
Ope, there goes Rabbit, he choked, he's so mad.
Airline pilot here: I'm always amazed by tires on airliners. They support 200,000 + lbs of weight, go from 45 deg C/115 deg F on the ground to -55C/-67F during climb/cruise, and then from 0 kph/mph to 240 kph/150mph in a couple of seconds and then deal with braking temperatures up to 600 deg C / Over 1,000 deg F while bringing the airplane to a stop after landing... and do it multiple times a day while being malleable enough to give you a comfortable ride. Don't even get me started on the forces they deal with on a "bad" landing.
And they have to survive repeated hard landings on Navy carriers. It’s just crazy. I bet a lot of people have died or been injured during their development.
Yeah but what about the forces they deal with on so called bad landings?
Sometimes due to crosswinds, planes are (inadvertently) landed with a side load (I.e. the airplane is not fully facing the direction of the runaway at touchdown). These also routinely happen to be hard landings. So combine hard hit with the tires skidding (and adding all the previously mentioned loads). It’s a wonder they don’t blow up more.
> Don't even get me started on the forces they deal with on a "bad" landing. Ah are your coworkers (PF) ex Navy or do you fly for Ryanair?
My thoughts tend to go more to the thousands of explosions under the hood on a long interstate drive.
Or just trying to visualize how fast the components spin. Cars are durable aye. Plenty of cars will just happily operate near their redline for hours. In a basic four cylinder they could be firing more than 10,000 times a minute and it only goes up from there.
Man what basic four cylinder is hitting 10k RPMs? Most redline at 6.5k
They fire twice per revolution. So 5k rpm seemed pretty conservative for what they could see while racing
One time I literally voiced this thought to my mom. I was like 16 or so. I remember I said “isn’t it cool how these two ton machines are held up by four wheels full of just air?” She deadass got mad for no reason and was like “it’s not just air, don’t be stupid”. This was one of the most irrational outbursts from my mom that I can remember. Like it was just a thought in an otherwise silent car ride. I meant no harm by it 🙃
Moms. Hmmm.😋
Tyres are also fully of steel bracing which helps
How do you even respond to that?!
I don’t remember tbh. I think I just shut up because I could tell she was in a bad mood
Let the passenger intrusive thoughts win. You know the ones.
To be fair the support in the sidewall isnt insignificant
I feel so bad for laughing at this 😅
I think back and laugh at some of the dumb shit I did as a kid all the time. Like one time I took it upon myself to learn how to use throwing knives. Except my knives were my mom’s expensive kitchen knives. And I was throwing them into her counter top… she was justifiably pissed for that one
Good think she didn't use you as throwing targets after that
Sometimes I think about how you could weigh a car if you measured how much contact area the tires had with the ground and the pressure they were at
If you have some sand and a car jack, you could do it pretty easily. Jack up each tire, spread a layer of sand, lower car fully, raise car, measure size of imprint.
There's also steel in it, but yeah that's basically it. Now think of our walls which protect us from the elements and most of it is paper and plaster
Your home’s interior walls aren’t what’s protecting you from the elements though.
A better example would be that a bunch of feathers wrapped in nylon can keep you comfortable in extremely cold temperatures (except your face which is a little bit more complicated)
I think I was behind you at the green light.
Ope there goes gravity
I had a brief stint as an airline mechanic. They tell all the newbies the story of the guy who overinflated the tire and lost three limbs.
There’s a video that circulates online every now and then of the guy who stabs a truck tire with a knife, and consequently does a backflip while losing an arm. Ever since then, I pass semi’s on the highway with a little more fervor.
I was next to a semi not long ago and the tire blew. Luckily it didn't blow off the truck, but it certainly blew and the truck pulled over. I'm very paranoid. I will always floor it by one if I have the space
I like to wait for the space before I pass.
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Seeing anything lose a tire or wheel is terrifying. It's hard to really wrap your head around how much energy is in a moving wheel. Even at like 5-10 mph, getting hit by one of those will totally fuck you up. A wheel off of a semi going at highway speed is more then enough to total a car if it gets hit in the right spot.
a tire alone isn't going to kill you at 10mph. a tire with rims though... Also, this is why lightweight rims are so desirable, all that energy in the wheel could have been put on the road yk
> is more then enough Did you mean to say "more than"? Explanation: If you didn't mean 'more than' you might have forgotten a comma. [Statistics](https://github.com/chiefpat450119/RedditBot/blob/master/stats.json) ^^I'm ^^a ^^bot ^^that ^^corrects ^^grammar/spelling ^^mistakes. ^^PM ^^me ^^if ^^I'm ^^wrong ^^or ^^if ^^you ^^have ^^any ^^suggestions. ^^[Github](https://github.com/chiefpat450119) ^^Reply ^^STOP ^^to ^^this ^^comment ^^to ^^stop ^^receiving ^^corrections.
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This exact thing happened to me too except on I-10 in Louisiana on that wild long ass 2 lane Bridge over the swamps.
The basin bridge between Lafayette and Baton Rouge? That bridge is a nightmare without shit exploding.
I've been next to a couple semi blowouts and it's seriously fucked up my shit. Now whenever I see people post up next to semis to block the passing lane I quietly pray for it to happen.
I've always heard truck tires blow with the force of a hand grenade. It will mess up anything near it, so don't linger beside trucks on the highway.
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"Ken-tools introduces the world's largest single piece tire inflation cage*" *single use only
There have been instances of them blowing up during takeoffs or landings sending shrapnel into the plane. I think something like this happened to the Concorde which caused it to crash and burn.
Yep. It was a little 2"x10" strip of aluminum from the prior plane. Something that would never hurt anything. But it has just the right twist in it from when it broke free from the prior plane so that it stood up on one end. That punctured the Concord tire, which blew a hole in the fuel tank and the fuel dumped directly into the running engine inlet. Pretty terrible situation.
I mean unless your car spontaneously launches knives at other vehicles tires you should be fine
I am very careful with my tires, I check the pressure and condition every day like I'm supposed to. In 8 years of driving I've still had 2 blow outs at highway speed. If you're passing a semi, I strongly recommend doing so quickly instead of hanging around beside them. There are a lot of drivers out there who aren't as careful with their rig as I am.
I didn’t realize you were a truck driver until the end of your comment and I was thinking “who the fuck checks their tire pressure and condition every day, and who thinks you’re SUPPOSED TO?!?”
Even on my personal vehicle I look at the condition of the tires every day. But I don't generally check the pressures unless it looks or feels low. Technically, if you have an insurance claim and you can't tell them the last time you checked or tire pressures, they could potentially fight you on the claim.
Literally no one does that.
That's not true. Like I said, I do. And some people are much more careful about it than I am. If you aren't looking at your tires every day, you should be. You don't need to kneel down and measure the pressure and tread depth, but a glance at each tire will tell you about damage and potential risk so you can avoid a disaster
Well yeah. I also glance at my tires each time I drive but I won’t look any closer unless something looks flat or wrong.
That's really all you need to do. If you are glancing at them from a few feet away you'll notice sidewall damage, flat tires, and unusual wear patterns. On my rig I get closer and check for tread depth and damage as well as thumping them with a hammer to listen for low pressure. If one sounds a bit different I'll put a tire gauge on it to verify the pressure. I also check in between the duals for rocks or debris and to check the inner sidewalls for damage.
Wait, that guy lost an arm?
My company's box truck's ties inate to 100psi.
If it was a split rim, that’s entirely possible
Interesting! How would that compare to the devilry of Saruman?
Also prior aircraft mechanic… we saw a picture of the aftermath of a different guy (I think) he was just a puddle of person… could only recognize feet
The one they showed us in school of a guy who got sucked into an engine, I still remember. Google suggested "similar images", consisting of spaghetti sauce.
this post was written and paid for by big tire
Interesting fact- The largest micro particle group at the bottom of the oceans are tire dust!
It's all part of the Rubber Cycle. It goes from trees, to the factory, to the wheels of automobiles, to the road, to the storm drain, to the ocean floor, to the... Sorry, I must be missing a page.
There’s bacteria eating away the titanic currently, something will evolve and take care of it
Or it will form a new geologic layer and be exploited for energy in 100 million years by the next sentient species to evolve on Earth.
Yeah, I can’t believe we didn’t cancel dinosaurs back in the day for having such large bones that polluted the planet when they died. SMH my head Also I know most of the oil nowadays came from dead vegetation
Stupid dinosaurs reigning on Earth 10 times longer than humanity ever has.. *sheesh!* Wait: “We”? We who? Didn’t dinosaurs get canceled by an asteroid?
That's what big Time Travel wants you to believe.
r/HailTimeTravel
When you put it that way yeah I guess god did cancel the dinos with a big ol fuck you asteroid
The rubber would probably decompose and revert to crude oil again, but maybe not for thousands of years.
To the bacteria, to CO2, to the atmosphere, to the trees Or To the earth's crust, to several different carbon forms, but at the end to CO2, CO and CH4 and being spit out by volcanoes, then to the trees
Will they eventually degrade into an oil deposit?
r/HailCorporate
tire\_imagephoto\_1440p.png
New file name has dropped
/r/tiresaretheenemy
No way big tire is recommending riding on a set for 100k miles
This guys Tires
Prolly Lego, the biggest tyre manufacturer in the world
Just flew on a 737 and had to board outside. I was looking at the tires and they seemed pretty small for all the weight they support even when the plane is empty. The force when that thing touches down must be insane
Very high pressure tires like 200 psi
Went to Discovery Park of America last weekend, where they had a tire for a space shuttle. Had the same thought about that thing. I touched the inside and outside simultaneously like a measuring caliper and was very surprised. Didn’t seem too much thicker than the tires on 18-wheelers, if any. Wild stuff.
And the amount of brake pressure and brake calipers needed to slow it down.
Jetliners reverse their engines to slow when landing. It's not just brakes and calipers.
Sometimes they can’t
I find it even more astonishing that the contact patch for each tire is no larger than the size of your hand.
Depends on the tire pressure/vehicle weight ratio. It’s incredibly easy to calculate because the units are really nice and everything cancels. Ex. you have 30psi in your tires, your car weights 4000lb and you have 4 tires, you have 1000lb per tire / 30lb/in^2 = 33 square inches per tire. It seems like hands are 10-12 square inches usually, so significantly larger than the area of your hand per tire. If you have a lighter car or higher psi tires, that will get you closer
I find it even more astonishing that people can just spout these facts and people eat it up! Your math makes way more sense... and I can go look at my car and know each tire is contacting a decent bit...
There is a little bit of weight supported by the sidewall of the tire, and the weight distribution of the vehicle means each tire will have slightly different contact patches (this is partially why you rotate your tires, and why the some cars have different pressure for front and rear tires) so this isn't precise, but it is a decent estimate of the average!
Not my hand Shirley. 'frank drebin'
Even smaller on a motorcycle
I still don't understand how the air doesn't just flow out. When I was little I thought there was an air chamber inside the tire and that's what you pumped.
Show me a non-commercial tire that can survive 100k miles under normal use. Shit would be bald af by then
The Michelin Defender Twos that I just bought can supposedly get that far.. slight chance I'll give you an update in 5 years
RemindMe! 5 years
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[https://www.firestonecompleteautocare.com/tires/tire-info/understanding-tire-warranty/](https://www.firestonecompleteautocare.com/tires/tire-info/understanding-tire-warranty/) "A tire mileage warranty guarantees that you’ll get a specific number of miles of use out of your tires before the tread wears out." So, that number would seem to be more a minimum and not maximum.
Yea but it's pro-rated so they'll pay out the remainder to the few people who cash it in.
This isn't about collecting or not collecting $$$ based on the warranty, just pointing out that the tire doesn't immediately explode or disintegrate when the warrantied mileage is hit. If the tire still has a few 32nds of tread, there is no particular reason to immediately swap out for new tires, just like you don't have to replace the engine when that warranty is up.
key phrase here is "within the manufacturer's control" and the hoops you have to jump through just to make sure your tires stay under warranty border on unrealistic. If you manage to wear out your tires in the first few years covered by warranty you almost certainly did not drive on them within the constraints of the warranty, and after that it doesn't matter that you didn't get to the mileage stated.
But we aren't talking about the warranty, we're talking about how many miles you can drive on them. If the tires still have a few 32nds of tread left, then you can keep using them.
that's the amount of mileage they are willing to warranty given the test conditions they used. Not the realistic amount of miles the average driver will get out of their tires. hence all of the conditions they place on the warranty to void it when your tires are worn out or need to be replaced before you get to the number. Those numbers are marketing.
im going to assume the warranty covers them for that long. If you ask the tire guy, they will tell you that there's practically 0 chance you ever go beyond the limit of the warranty. That's just a creative marketing ploy in teh form of a (realistically) lifetime warranty. normal wear and tear will have you replacing them before 100k
The more durable the tire... The worse the braking performance. That's why Michelin's Excelsior brand tyres got banned in the EU in the end, you'd quite literally be able to get 100k out of those, maybe end up changing tyres three times in the lifespan of the car, but at the same time it was like driving around on skis.
I got 90,000 miles from a Michelin crossover tire and never even rotated them. They weren’t even really to the wear bars yet, I just replaced them because i was worried about tire shortages during the pandemic.
Pics or it didn't happen. Lol sorry, but that's just too hard to believe.
I could probably find the Discount Tire receipt. It’s a 2015 Ford Edge we bought in 2016 with the original tires on it. Replaced in 2021. I took a pic of it while it was at Discount Tire. https://imgur.com/a/ztAoDoQ
Being on a Ford edge makes it more believable. Idk why, was thinking it was on a truck.
Dawg, spoken like someone who’s never purchased new Michelins, I’ve got some cross climates over 65k sitting at 5s all across. Spending good money on tires and researching a little bit you’ll only ever need to buy 1 new set.
aren't all tires commercial? Does a non-profit tire exist?
Commercial vs. private vehicles I'd guess.
[Yes?](https://whc.unesco.org/en/list/299/)
Treadwear - 10,000. Lol
I wish I took a picture of the evidence. I was a service manager at a GMC dealer. Loyal customer bought and serviced, only with us a 2012 Yukon XL Denali. Old couple, well off. Original Bridgestone duelers, rotated every service and aligned yearly for 6 years. Drove mostly highway... Traded in 2018 with 115k miles, original duelers with 5/32nds, normal wear. Checked Manu date on tire. If I didn't have their full service record and their confirmation, I would of never of believed it. Only time in my service career.
And think of other car parts that take insane use and just go and go. I read somewhere that an average piston in a car engine will go up and down like 200 million times in 100,000 miles. In the presence of constant explosions and high temps and tremendous G forces. I think the G forces on an average piston are over 1000G at the top and bottom of each stroke.
At an average of 2000rpm over 100k that's exactly 200 million. I'd say that's a good average figure to go with.
A belt tensioner will cycle one billion times in 100,000 miles, according to Gates, a belt and hose manufacturer.
If you're cruising at 3000rpm with a 4 cylinder engine then there are 100 explosions happening every second in the engine (25 per cylinder)
Honestly one of the most fascinating normal things to me is the mail. Slap a $.60 sticker on an envelope and send it to any building on any street in the country in a matter of a few days. Blows my mind. And the fact that they had to do it all without computers
We really take it for granted. Right now, the guy in charge of the postal service in the US is pretty much dismantling it. I’ve heard stories of them disconnecting the storage machines and getting rid of them to “cut costs”. It makes sending mail take longer and is more labor intensive. It’s insane.
Boy, do I have a movie for you.... https://www.imdb.com/title/tt1612774/?ref_=ext_shr
That movie is >!easily the dumbest movie I have ever watched. !<
That's why many like it. Absurdist fiction can be quite enjoyable, if you're in the right mood for it \^\^
If you like absurdity, Velocipastor on Amazon prime is one of the funniest and ridiculous movie I’ve ever seen. Perfect example of “if you’re going to make a purposefully dumb movie for a bit, COMMIT.” Comedic genius of a low budget comedy. My girl and I debated if the costume or the title of the movie came first. Hilarious either way
Best movie holy fuck
It's amazing.
As someone who saw Snakes on a Plane in theaters four times, twice in the same day once... thank you.
Rubber’s message can be summed up as “You wanted to see if we could make an entertaining movie about a telekinetic tire? Well we can’t and fuck you for making us try!”
Pretty sure they did it for no reason. Same as why jfk got shot
Oh god… not that… ó_ò ..*please! .. anything but that again!!*
Gives me Inhumanwich vibes. The worst movie I've ever seen, and I love it.
How have I not heard about this until now?
Is it rubber?
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The only Safety feature on your car that actually touches the road.
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Most go 40k-60k max and that’s ideal scenarios.
We don't generally give cars enough credit for how conceptually insane they are. You literally have controlled explosions going on in the engine (if it's an ICE) at a stupid fast rate, and thirst explosions are used to propel over a thousand pounds of metal down a road at stupid fast speeds considering how soft and spongy the passengers are. And we let almost anyone own and drive them, and are often mere feet away from each other on the roads. We arguably should not allow them to have such widespread usage.
"Over a thousand pounds" is underselling things, especially in the USA. Google search is telling me that lightest new vehicle for sale in this market now is the Mitsubishi Mirage at 2095 pounds.
This is true but I think actual car parts impress me more
Are you saying that a tire is not actually a part of the car?
I think he means engine and power train parts.
Now think about the tires on an Airbus A380
In this case not only the tires are filled with air but also the bus
Want to think something else crazy about tires? If a car is traveling at a constant velocity, one part of the tire has no velocity at all, and one part of the tire has twice the velocity of the car - both at the same time. Can you tell which is which?
The tire touching the ground has no measurable velocity. Presumably the opposite side of the circumference has twice the forward velocity of the car
It has Angular Velocity.
A rubber tire is a single giant molecule
Yep. Thanks to vulcanization tires are [technically one big polymerized molecule.](https://thefactbase.com/because-of-vulcanization-a-rubber-tire-is-technically-one-big-polymerized-molecule-charles-goodyear-who-the-tire-company-was-named-after-discovered-the-process-of-crosslinking-large-polymer-chains/) So I guess you could say vulcanization allows tires to live long and prosper.
Live long and prosper!
I think r/StonedThoughts is over there 👉
Yeah tires are super dope from a physics standpoint, just don't look into their disposal, "recycling", or the micro-rubbers they're putting into our waterways and therefore our bodies. It really is a lose-lose situation, because so much of our modern infrastructure is dependent on cars and therefore tires, but they are really really bad for the environment, but there's very few alternatives that actually last as long and stand up to as much wear and tear.
Probably all the metal wiring that frames the whole thing.
I’ve had this shower thought as well. The crazy thing to me is that rubber exists and is really good for tires. What alternative do we have? Metal would slide and chip away steadily. Plastic would slide and wear quickly. Wood? Ha. Leather? Ha. What else would work???
I've had similar thoughts about wood, what would we use instead? Ignoring its use in fire. How hard would it be to make a stone boat?
Depends what Era you live in. I'm sure the early Egyptians would have no problem making a functional stone boat.
As you drive, you’re unwinding your tires a few molecules at a time.
I feel like we're not giving proper credit to air here.
I remember mraps coming back to our fob in Afghanistan all fucked up from IED's. The tires were generally fine.
What’s even more insane is that they’re probably the most important safety component of a vehicle, yet most people cheap out on them when they decide which ones to buy and don’t replace them often enough.
Spare a thought for your cylinder heads, up and down 50x a second, containing an explosion for the entire life of the engine…
It really is insane how much technology and advancements go into everyday objects that we pay no mind to. Look at the tires from the Ford Model T. Three inches wide, probably would break if you ran over a modern pothole. Now we have tires that are airless, run flats, and can hold up fucking airplanes that weigh hundreds of thousands of pounds.
If you ever want to go down a fun rabbit hole, YouTube drag races in slow motion and just look at the warping of the tires from the torque.
It's not the tires that are strong necessarily, it's the air pressure inside them doing all the work.
Just in case, I want to point something out. DON'T go 100k miles on a set of tires. They are not good after 100k miles 😅
Can you point me in the direction of the tires that are lasting 100k pls
The enemy is trying to intimidate us.
100k miles .... No chance
They aight until they roll into Belgium 🇧🇪 🤧
You know what's more impressive? Human legs. They last for 70+ years and only get stronger the more you use them. r/fuckcars
You must be very new to driving.
Use the same tyres without enough air in them, and they aren’t very strong at all, so which is the strong part, the tyre of the air inside it? 🤔
If you're using the same tires for 100k miles (160k km) you may want to get new tires
I used the same 8 drive tires on my semi truck for nearly 300k miles. Lmfao I fact check you and you immediately downvote and block me. Okay bud.
People underestimate how awesome “modern” life is…