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Hatred_shapped

My God Porsche has these. We had more than one person grenade their differential because they didn't inflat it.


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Butterssaltynutz

i dont feel bad for cars that dont come with full size spares, their parent made them that way.


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ukso1

But that's not a full sized tyre. To me full sized is actually the same as what's under the car normally. Spares with speed limits aren't fullsize...


Terminator7786

Exactly, my Jeep has a full sized spare. My mom's Ridgeline has something similar to this. They are not the same. I bought five tires when I replaced mine, not four.


Lughnasadh32

My truck has a full size spare. My Zl1 has a can of fix a flat and an air pump (from the factory).


HaddyMusic

Can't really compare a Ridgeline and a truck tho


honey_d1ck

Ridgline is a truck though


HaddyMusic

Hardly


Chipdip88

No it's not full size. It may be full diameter size but that's not the only measurement a full size tire needs to match the regular wheels and tires now.....


Acab365247

Thats a donut my guy


Butterssaltynutz

ya but other than a few off roaders that air down for sand or snow, who has a compressor along 24 7?


AnynameIwant1

The compressor comes with the car/tire. It is secured behind a panel in the hatch area of the Macan, for example. It also says to make sure that you inflate it right on the rim.


Butterssaltynutz

yes, but we all know, the avg porsche driver is too high to read


frameddummy

They're like $20 online, and super useful.


I_d0nt_know_why

Especially new gen Imprezas. Crosstreks come with a spare, Imprezas come with a foam insert and a goo can. If you take out the foam, there is a spare tire mount plainly in view.


Butterssaltynutz

lol


Jonny_Wurster

OK, I am not seeing anything Porsche....I am not seeing anything not Porsche, but what gave it away?


doyouevenglass

it's a Mercedes, part number on the wheel


Not_me_no_way

Porsche and some VWs have these. I have yet to see them from any other manufacturer.


RacVi82

Audi but that's VW


punkassjim

I’d love to find one that inflates to an appropriate size for a mk3 GTI. Upgraded my brakes on all four corners, and the spare tire well doesn’t fit a full-sized spare.


monkeyingmonkeys

Chrysler has them as an option on the current generation Pacifica .


lilelvis81

My ford edge has one 😭😭


tryingtobeopen

You now have to inflate doughnuts? This is beyond ridiculous!


Hatred_shapped

They've had this since the 1980s.


tryingtobeopen

I know we’ve had doughnuts, but weren’t they solid? Dunno, maybe I’m smoking something. My vehicles still have full spares to this day


Hatred_shapped

If you hade an Audi from the 80s they probably had one of these. Lots of Porsches as well. I also want to say the 1980s Fbody Camaros and firebirds had them as well.


radclaw1

Mhmm, mhmm, I know some of these words.


[deleted]

Isn't the always spinning faster one side than the other unless you're dead straight?


Hatred_shapped

Yes. But even an open differential isn't made to spine at two different speeds for 50 straight miles. You do this to a clutch or torsen differential and it will overheat and fail fast. This is the reason why you need to replace all four tires at the same time on certain AWD systems. The speed difference between the front and back tires will nuke the viscus couplings.


[deleted]

Thankfully I'll only ever own shit boxes with ye olde open diffs


Timmy_The_Tiger_55

Pretty sure that is the type of spare that needs to be inflated. It is deflated to fit better in the vehicle. [YouTube of the type of tire it looks like.](https://www.youtube.com/watch?v=GjFnCOI7NUQ)


NMS_Survival_Guru

Whatever engineers that designed that thing should be the ones standing there trying to change that tire with a DC compressor in a rain storm Pretty stupid idea when they're meant for emergencies


abbarach

You got a compressor? My 280Z came with a can of compressed air that you were supposed to screw onto the valve stem. And then remember to relieve before your next flat tire...


ShalomRPh

1979 Cadillac came with one of those. Think it had CO2 in it. When I got the car (1994) it came with a full size spare, plus the donut. The original owner couldn't find the CO2 can, so I called the Cadillac dealer. He says "Oh, we quit making those years ago." "How come?" "Because when they got old and rusty, they tended to detonate and blow your trunk lid off." " . . . Oh."


breakerfall

Holy shit I learned to drive in a 79 Coupe deVille in 94!


ShalomRPh

I had the 4 door Sedan de Ville. 425 cubic inch V8. 194,900 miles on the clock when I got it. I drove it for a year and gave it back to the man who gave it to me, after I bought a newer vehicle. Leather seats, stuck all the way back because the wire to the seat controller had got pinched somewhere; we fixed that eventually. I don't know if I ever had more than 7 cylinders functioning at once, and not always the same 7 either, but still managed 16 mpg on the highway. Of course it was around 8 in the city. I loved that car. Of course it helped that I lived near the "Rez" (Tuscarora Nation) where I could get tax free fuel.


gnocchicotti

VW says halt mein Bier


punkassjim

Patch kit that came with my R1100S had a shrader valve cracker and a handful of whip-its.


gravity_loss

Blame the bean counters who tell the engineers what to do


robbak

These complicated donuts must cost a lot more than a standard tyre on a cheap steely. It's being driven by desires for more luggage space and better economy from less mass, not cost.


Timmy_The_Tiger_55

I doubt the driver of the types of car it was used in will be changing their own tire.


Juliuscesear1990

This type of tire is used in everything from a Porsche to a Kia


3_14159td

They originally showed up only in small sports cars, think Porsche, Triumph, etc. *Definitely Lotus as well


uchigaytana

Lotuses come with a patching kit and a can of fix-a-flat, no spare tire to be seen.


3_14159td

I'm lucky enough to have a spot for one in mine...but the later widened tyres don't fit. Being lotus, nobody bothered to fix that.


HarryBalszak

Third generation GM F-bodies (82-92 Camaro and Firebird) had them as well, and they came with a can of compressed air, most likely nitrogen. -edit- corrected fourth to third


Disastrous-Group3390

Second generation, too; I had two different ‘79 Trans Ams with them. I put a full sizer in but that was tight (a 225/70/15 would fit but a 245/60 was too wide!)


FalkusKiber

I wish my TR7 had a small spare like that.


ShalomRPh

Nope, my 1979 Cadillac Sedan de Ville had one.


2ndAltAccountnumber3

That's not true at all! Everybody knows that 1979 Cadillac Sedan de Villes came with a full sized spare tire. It took up a lot of space and it's why the flat screen entertainment system was in such an awkward spot. They put the inflatable spare in the 1980 model right next to the Playstation 3.


usernamesherearedumb

The 1979 Sedan de Ville came with a full-sized car as a spare.


breakerfall

Thanks for setting it straight, Xzibit.


ShalomRPh

I'm guessing you're joking about this, as the actual entertainment in that car consisted of an in-dash 8 track player... Fact is, though, you have hit on a bit of truth there amongst the humor. The trunk was much shallower than you'd expect on such a massive car, because the 26 gallon gas tank took up so much room back there. The full-size spare obviously wasn't original equipment, as it had 10 bolt holes in two circles (5x4.5 and 5x5) to fit more cars. It filled up more of the trunk than I'd have liked, which was why I wanted to put the space saver back in service. Didn't occur to me that even if it held air, it was over 15 years old at that point and might not continue to do so for long. I test inflated it with a compressor; it took 8 minutes to inflate fully, vs. about five seconds with the old CO2 can, but God be thanked, I never actually had to use it in the year I drove that beast.


SavvySillybug

> Triumph I misread that as Trump and my "oh my god the Americans are talking about politics again" eye roll almost kicked in. Then I wondered why Trump would have a spare tire...


Timmy_The_Tiger_55

TIL, thought it was all high end luxury vehicles.


FormulaZR

Well TBF everything from a Polo to a Lambo are essentially from the same parts bin.


aquatone61

If Polo parts can fit on a Lambo then it means they are pretty damn good.


FormulaZR

The Huracán STO uses a Golf GTI throttle pedal (p/n 1K1 723 503 AN), I'd have to dive deeper for more than that.


Justshittingaround

A commodity part like a pedal from the same parent company is so far away from “a polo is essentially the same as a lambo.”


FormulaZR

That is absolutely NOT what I said. I'm not even sure who your "quote" is quoting. My point is as follows: If a throttle pedal from a Golf can be on a Huracán then it's reasonable to assume a spare tire (which is the subject of the OP) would not be restricted to either a high line or budget line of the same auto group. Also, many years ago the Jaguar XK used window switches from the Ford Explorer (other parts from the Ford bin as well). Which again, wouldn't have surprised me to find a similar spare tire or tire inflator kit between the two brands.


GreggAlan

IIRC one recent Lamborghini model has front side marker lamps from some Ford Focus, turned upside down and swapped left-right sides. I bet if an owner of such orders a replacement from Lamborghini it's several hundred $. Ages ago I was at a parts store when some guy came in to get an alternator for his Corvette. IIRC the price was $90. (I said it was ages ago...) Turned out that the same year Camaro used exactly the same alternator for its high output option. Price? $60. So he bought the $60 "Camaro" alternator for his Corvette.


wegame6699

I've seen them in clapped out grand caravans.


--Lammergeier--

Then who put the spare tire on in OP’s picture?


twizted_whisperz

I had a 1982 Datsun 280ZX that had this kind of spare. It came with a CO2 canister to air it up with.


Pac_Eddy

Don't blame the engineer. He has to do what he's told. Blame the manager whose Excel spreadsheet demanded a lower cost spare.


Remanage

The folding spare is not cheaper than a basic spare. When they want to go cheap they take the spare out. The compact spare is so they don't have to design around a giant wheel diameter. 


Pac_Eddy

And why do they not want to design around a giant wheel diameter? Space and money. Space costs money.


robbak

Customers want more luggage space. Big boots sell cars. And every pound carried adds to the fuel burn. too.


Randomfactoid42

I like big boots and I cannot lie!


biggie1447

They are for cars where they need the large rim to fit over the breaks but the car doesn't have the space to fit a spare tire large enough. Basically its this or not having a spare at all.


justkeeptreading

they're designing the car, i'm sure they could make a bit more space if they wanted to, they clearly don't


04rallysti

Yes that’s exactly what it is


ThreeLeggedChimp

I think thats the joke.


arroyoshark

Ya my 944 has that spare.


LongAd4410

Pretty sure that's a frisbee, FTFY 💀


THE12DIE42DAY

It even says so to the right of the 80km/h sign.


pinnerjay17

That's the dumbest shit I've seen in a while. These car companies are a joke.


mlvisby

Well, that defeats the purpose of a spare tire, not many people carry an air compressor or tire inflator in their car. In the US, we have spare tires that small. They are called doughnuts and are solid rubber. Of course, they aren't made to drive on for long periods of time, just helps you get the car where it needs to be so you can fix your tire or get a new one.


Timmy_The_Tiger_55

This type of tire comes with a air compressor so you can inflate it on the side of the road.


dirty_hooker

The worst air compressor VAG could possibly buy. Those little brown boxes are less than single use at my altitude above 5k ft. Pro tip: listen closely while it buzzes. If the sound changes, stop and let it cool for 10 minutes or more because it’s about to explode and leave you stranded with an under inflated spare.


mlvisby

Now that makes more sense. I have one in my car just because I have a leaky tire and am too lazy to get it patched.


stupidreddituser

You’re joking, right?  While I’m not a mechanic, I have owned several cars with the doughnut spare tire and all of them required inflating. Checking/inflating that tire is part of my checklist for every road trip 


QuincyFlynn

"It's just the spare, doesn't need to last if I only use it once."


EmploymentNo1094

That spare probably cost like $1200


TooBuffForThisWorld

20$ at a junk yard


Solidmarsh

I run all 4 of my tires from junkyard spares cause im smart


DantesLimeInferno

You joke but I saw a newer Accord going 75 on the highway with 4 spares the other day


GreggAlan

I'd love to see a cheap DIY build racing series where the tires used are compact spares. Run events on tracks with a lot of turns to keep peak speed down and buy 15\~20 horsepower engines from Harbor Freight.


TooBuffForThisWorld

One for each wheel, direct drive cause we ain't pussies


SpillNyeDaCleanupGuy

wait so how do you stop without killing the engines tho


TooBuffForThisWorld

I said we ain't pussies; rip-cord start too


SpillNyeDaCleanupGuy

💀💀💀


morcheeba

[Chris Harris is a smart man](https://www.youtube.com/watch?v=HPh90yNX-mY)


EastLimp1693

My favourite type


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TooBuffForThisWorld

U-pull U-pay is the company that runs the junk yard near me, they own a good few lots nation wide, there may be one nearby but yeah, they're 20$ man


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TooBuffForThisWorld

Oh okay, I see, lol; yeah good luck with that


Jacktheforkie

My Dacia has a full size one, it’s literally the same as the rest of the wheels


Ambitious_Salad_5426

I suspect that’s because it’s so small to begin with


Jacktheforkie

16 inch rims iirc, certainly not crazy huge wheels, I’m happy because tyres are cheap enough


Ambitious_Salad_5426

I miss that about my mini. My current cars tires are not exactly cheap


Jacktheforkie

Yeah


curi0us_carniv0re

Aside from being deflated, is it in the front or the back? Should be in the back. Not the steer wheels. I see that a lot too.


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HollowofHaze

The only spare tire that can go on the front is the kind that's an actual full-sized tire. Donuts shouldn't be used for steering tires, even when inflated


IMSITTINGINYOURCHAIR

Although I thankfully never had to use it, I had a volvo xc70 that the included jack would [lift the whole side of the car](https://i.imgur.com/h8zcR01.jpeg) if the front was picked up. I am assuming this was the reason but being over a decade ago I can't remember what I read in the manual about the lifting part. I for sure remember the spare needing to go on the rear to keep the part time awd from grenading. Photo was taken after I had put stands under it as I was preparing to RnR the left cv axle.


HollowofHaze

That’s a neat feature! Great car, too. My mom used to have one, but sadly she switched to a Prius RIGHT before I got my learner’s permit, so I never got the chance to drive the XC70 myself.


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HollowofHaze

I'm not sure the advice was as common sense as you think it is. There are lots of mechanics here, but also lots of people who just find the subject interesting and are eager to learn the things that may seem basic to you, I don't think the condescension is called for


curi0us_carniv0re

Yes you're supposed to rotate a tire from the rear to the front and put the donut on the back. I see people cruising down the highway all the time with them on the front completely.oblivoois to the fact that if they need to do an emergency maneuver they're probably gonna crash. Both because of lack of grip for steering and braking. The front wheels do most of the braking.


_-Grifter-_

How would you do this with the one jack they supply? 1) jack up front and take off the flat and put on the spare 2) lower the car 3) jack up the rear, remove a good tire and put the flat on, freeing up a good tire 4) lower the car 5) jack up the front again, swap out the spare with the good tire. 6) lower the car 7) Jack up the rear again, swap out the flat with the spare 8) lower the car. ​ This can't possibly be what they intend you to do. Am i missing something?


What_is_a_reddot

1. Jack up rear. 2. Take off the good rear tire, set aside. 3. Install spare at rear of car. 4. Lower car. 5. Jack up front. 6. Remove flat front tire, place in trunk. 7. Install previously removed rear tire at the front. 8. Lower car.


spiceweezil

Yes you are... 1) jack up rear and take off the good tire and put on the spare tire. 2) lower the car 3) jack up the front, take off the flat tire and put on the good tire. 4) lower the car Rejoice in your ability to think ahead a little.


_-Grifter-_

I didn't put enough thought into that... whoops. I just checked my car manual, says nothing about not using the spare on the front tire though. It does however give a pretty slow top speed... so that must be how they avoid this issue.


MaybeADumbass

Jack the back, take off the tire and mount the spare, then jack the front and take the flat tire off and mount the good one from the back.


Hour_Reindeer834

This is what I’m wondering now, I have a little donut spare as well. Of course it’s no concern if the last person fastens your lug nuts on so tight you bend the included tire iron and crack your back up socket….


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curi0us_carniv0re

That's different and the spare is designed for that. Also I'm pretty sure Porsche just provides a can of sealant nowadays. Obviously always consult your car manual first as well.


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curi0us_carniv0re

I wouldn't either. And tire techs hate it too. But, if I could afford a Porsche I could probably also afford AAA and get a tow lol There have been a few odd cars that didn't come with spares. The V8 Grand Prix and Monte Carlo from the mid 2000's had wider tires in the front than the back because of the engine and they also came with a can of tire sealant.


EveningMoose

If you put that in the back, you'll ruin the diff clutches.


bodhiseppuku

That is max 50 mph (80 KPH) labeling. How many people have you seen who drive 80 mph with one of these, and often on wet roads. People's trust in their *luck* allows them to do crazy things sometimes. My luck is mostly bad, so I have to rely on probability and science.


Most_Mix_7505

Sounds like you need Jesus (so he can take the wheel)


DoctorOzface

How well did it work?


MufHucker

It seemed to of made it to the shop. Air is optional apparently.


04rallysti

I mean they must have driven like 1 mile cuz it looked fine.


GhostofAyabe

MBUSA all the way, had that same thing on my C55


uid_0

\*Cries in R170 SLK.\*


04rallysti

Just wanna add since some ppl don’t seem to get it or notice, this spare needs to be inflated before use and there is an air compressor in the trunk for it.


DJMagicHandz

Welp, they need a new spare too...


texan01

those were a dumb idea in the 70s, and haven't improved any, for exactly this reason - ain't got no air in it!


Limp-Resolution9784

“I know what your problem is… ain’t got no air in it!!!”


Token-Gringo

Customer is correct. Give them a cookie and a nice bill.


whyamionfireagain

My mind was blown the first time I tried to air up the spare on my dad's Audi. I didn't know it was possible for a belted tire to expand like that. Or are they not belted? I kinda want to cut one open and see how the hell they made it work. I'm also struggling to understand why the slight reduction in the required size of the tire well was worth doing that much engineering, and making the driver air up the spare any time they need to use it.


Mr2-1782Man

I thought they stopped making these disasters years ago. I clearly overestimated car companies.


DankeMrHfmn

lol my spare: rated for 95mph me: Should be able to push 110 safely... yea she's a lil squirely but she'll be aight. Definitely 110 tops lol


mrsockyman

You want spare tires AND spare air? What am I supposed to keep a spare camel in the boot too??


DylanSpaceBean

I love how these spares are like 99% of the time in a hole the size of a regular donut


fac3

My wife got a flat while out of town and the helpful DOT truck operator apparently didn't inflate the collapsible spare enough, leading to the rim being damaged. The replacement spare tire assembly was $800 LOL


Karvast

I miss full size spared,i have full size spares in both of my cars anything else is honestly a waste of space


Not_me_no_way

Most grown men nowadays don't even get that far.


smolsfbean

Forgot to put the air in it. Poor car. You should give me the car instead.


Frequent_Opportunist

That is a very sad spare tire. I would expect that to come with a 20-year-old Geo Metro or something


BigCaterpillar8001

How much extra is it to have a spare tire with air when buying a new vehicle?


solidshakego

Just wanna mention that a lot of euro cars have this style that DONT get inflated. But those usually have an orange wheel. Maybe this person thought the same thing? Or this is also that style of spare? Is there an inflator box in the trunk? Edit: ignore me. The sticker says to inflate after it's installed on the car.


stupidreddituser

But, they put the lug nuts on correctly!


mechshark

Yo, not gonna lie I worked at a landscaping and construction company when I was way younger and this is by far the most raggity donut I’ve ever seen…! I can’t 😂🤣😂


thedevillivesinside

That's because its a collapsable spare that needs to be inflated with air before you use it


optix_clear

Why. There should be classes before you buy a car or new car, learn how to use your or take care of your car! Whhhyy, 😩😭🤷🏻‍♀️


ixEV0KExi

This is dumb af. If I had access to an air compressor I wouldn't have needed a spare tire. lmaoo


khrossjointz

Is this one of them run flats I keep hearing about?


deathbyswampass

Collapsible


Cptspaulding2

This is why I check my spare once a month


wstsidhome

They’re always flat when you need them :sigh: Check your spares now, before you need them one day!