Which Tire Shop Is Capable Of Fitting Your Stretched Tires!?

[nisskid]

I'm surprised that a reputable tyre fitter would even try and fit those tyres onto 10" rims.

The widest rim a 245/45x18 tyre is designed to fit is 9" (minimum 7.5", optimum 8"). If you can get them to stretch onto a 10" rim, they are simply dangerous. (I'll have to remember to avoid Melbourne's northern suburbs.)

:P

"simply dangerous"

:laugh:

[Dean_HR31]

Finally a few decent people enter this thread! lol

That S13 is nuts!

[joeyjoejoejuniorshabadoo]

well i'm off to put 235's on 9.5's today, probably gonna eat a few babies and club me some seals too....

[Weapon]

Man i had 235/40's on my VS KF 18's and they were fine, i don't see why any normal tyre shop can't do it lol

[joeyjoejoejuniorshabadoo]

well i'm still alive...

[funkymonkey]

I'm running 225/40/18's on my 9.5's now not dangerous at all as long as you pick a tyre with a well reinforced sidewall. Plus its the only way I can tuck my wheels under the rolled guards.

Dean, take it over to Driftline in campbellfield, one of the guys there should be able to stretch them on (although, 245's aren't really that much of a stretch, we usually do 235/40/18's... they tend to be closer to the overall rolling diameter of a skyline wheel so it doesn't put your speedo out, plus the tyres are cheaper to buy). Usually its the bicycle tyre method we use, makes for a lot of fun and shenanigans too when its done.

That said, unless you're riding dirty (ie you need to tuck tyres under guards), you should just fit something that fits under the guard and is easier to put on.

[joeyjoejoejuniorshabadoo]

i agree with shan, next time save some $$$ and get 235's

[bozodos]

I'd've thought that stretching the tyre would compromise the strength of the sidewall, and also make it easier to roll off the bead? It also looks shithouse when it looks like you've got licorice straps on your wheels. Would it also make insurance void in an accident? Also wouldn't it make less of a contact between tread and the road, thereby creating more traction issues? (guess that would be the point for a drift car.)

[Streeter]

I'd've thought that stretching the tyre would compromise the strength of the sidewall, and also make it easier to roll off the bead? It also looks shithouse when it looks like you've got licorice straps on your wheels. Would it also make insurance void in an accident? Also wouldn't it make less of a contact between tread and the road, thereby creating more traction issues? (guess that would be the point for a drift car.)

basically wrong in every assumption.

to be fair if you go crazy with stretch ie. 215 40 17 on a 10" rim you are looking at potential problems with it rolling off the bead. 245 on a 10 is as safe as houses.

doesnt compromise the sidewall strength what so ever... I guess thats another one of those rumours started by the deisel squirter brigade.

looks are subjective... but just have a look at any concept sketch (which is supposed to LOOK good) and generally they will have something that resembles wide rims with good fitment and *gasp* stretched tyres.

Arguing about what is legal? to be honest it probably is illegal but as tyres are only recommended for certain sizes the rules will be pretty vague and I dont think there is a specific law against fitting stretched tyres? I could be wrong though.

contact patch is not changed, only the sidewalls are, tyres have been steel belted for quite some time now and a 245 40 will have near identical grip if fitted to a 10J or an 8J rim, except if its a cheap tyre when fitted to the 8J it will feel very sloppy and unpredictable

and finally again no, the less traction is good assumption is again from those deisel squirting talkers LOL If you bothered to read the thread you would have read the many reasons why stretching is beneficial, one of them being improved response/feel from cheaper tyres with soft sidewalls.

I got to say I would have thought skyline owners would be able to think outside the box a little more, as the amount of crap they must cop from the Holden/Ford guys must get tiresome. I find it really weird that ppl that are seen as out of the norm and doing there own thing in the Aus car scene would have so much trouble accepting something `different`(and in many ways BETTER) just like their nissan Vs Ford/Holden mentality.

[funkymonkey]

I'd've thought that stretching the tyre would compromise the strength of the sidewall, and also make it easier to roll off the bead? It also looks shithouse when it looks like you've got licorice straps on your wheels. Would it also make insurance void in an accident? Also wouldn't it make less of a contact between tread and the road, thereby creating more traction issues? (guess that would be the point for a drift car.)

aesthetics are debatable, what looks good to you may not look good to someone else.

that said...

http://www.toyo.com.au/PCRPDFs/Proxes%20T1R.pdf

just as an example, 235/40/18's are rated for use on up to 9.5" wheels, so I doubt another 0.5" is gong to seriously compromise much.

Insurance is voided by having a 18" wheel in the first place. Remember ADR's specify that your wheel needs to be no more than 1" more than the largest factory supplied wheel. So the biggest wheel you can fit on the car is 17" max. The size of the tyre I'd argue is somewhat irrelevant in the grand scheme of things if the insurance co was out to void your claim.

Whenever this topic comes up there's always people who don't get why others would do it... I suppose it would be like trying to explain rock and roll to the folks back in the day.

[bozodos]

I asked some questions based on a quick Google of the topic of stretching tyres, which on nearly every other forum I looked at in my fairly brief perusal seemed to say that it was detrimental. Granted, aesthetics are down to a matter of opinion. I posed the issues that I'd found in the form of questions, not as a statement due to the fact that I do not know definitively whether it was a reasonable thing to do, or whether it was some shoddy backyard mod like chopping springs.

One would think that if there is no ill effects from it save riduculously thin tyres on wide rims, then most tyre shops would be happy to do it?

Again the less traction is better, I'm not into drifting, that was another product of my logical mind, not to mention that drifting must use tyres at an incredible rate, I mean after all drifting is a controlled powerslide.

If anything, than the 'diesel squirter' brigade would be all in favour of tyre stretching, the insurance thing I mentioned was based on the fact that obviously a tyre is manufactured to be used with a certain sized rim, and when the assessor is looking for any and every way to get out of a payout, well that would be quite easy for them to pick up on.

Ironically, one tyre place I went to refused to fit 255 wide tyres onto my 9.5" rims, citing that they were 'too big for the car'

Edited March 31, 2009 by bozodos

[funkymonkey]

Again the less traction is better, I'm not into drifting, that was another product of my logical mind, not to mention that drifting must use tyres at an incredible rate, I mean after all drifting is a controlled powerslide.

actually, lots of guys run softer compound tyres to improve the grip in drifting... getting into the slide and spinning wheels is one element of it. controlling it and stopping yourself from spinning out is another major part where grip does come into it.

The better cars that drift have enough power and strong drivetrains to spin grippier wheels when needed, and still be able to steer, stop and change momentum. guys who run on cheap shitty tyres usually end up spending more time fighting the car for control than actually carving out great corners.

[Streeter]

^^apologies if I came off a bit harsh... just the general snobbishness of alot of circut racers has got me a little more standoffish than I should be

and as you have found with a quick google search for some reason ppl hate it with out any experience and very little knowledge about it.

yeah drifting uses a fair amount of tyres meaning the poorer guys have to use cheap tyres which usually have softer/sloppier sidewalls which can be rectified by stretching on to wider rims

if you are a tyre garage and have everything to lose and nothing to gain then I wouldnt be fitting tyres to non recommended wheel size either. just look at the anti stretch hype that is around. If the car crashed and it wasnt anything to do with the tyres it could come up as a possible reason just due to specualtion and then you are in the crap.

[bozodos]

thanx for the explanatory replies

[35NIK]

qlds best wheels & tyres in geebing should be able to do it.. Ive seen some wild stuff get done down there.

[funkymonkey]

oh yeah, almost forgot this thread:

215/40/18's on 18x8.5

225/40/18's on 18x9.5's

[mitchy_]

i've got 215/45R17's and 225/45R17's on 17x9's, which haven't had any issues.

the 225's went on relatively easy, one of the 215's they got on with a big quick burst from one of their bigger compressors, and the second one they put this gooey crap around the rim/tyre bead... apparently they use it to seat the bead of truck tyres?

the bike tube method seems to be one of the safest/best options though