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The mkiv Supra Owners Club

Which profile tyres for Supe with 18" ?


Getrag
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I've bought some 18" rims and gonna buy tyres for them. Im sticking with 235 front and 255 rear but what profiles to go? Im unsure as I've only had 17's before. Ive read 40 front and 35 rear, is this correct? Also, are there any things to be aware about regarding different profiles. Im guessing the lower the profile the more expensive they are.

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I run

 

235/40/18

265/35/18

 

with 235/40/18 and 255/35/18 as you've suggested you'll have a 1.5% difference in circumference between fronts and rears.

 

235/40 & 265/35 = 0.4%

235/40 & 275/35 = 0.7%

245/40 & 285/35 = 0.5 %

 

check out this page for everything you need to know about tyres.

 

Mike

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This is a nice website for calculating tyre sizes.

 

http://www.tyresave.co.uk/tyresize.html

 

I've just checked mine again against the standard and they're not the closest you can get, but there's not much in it to be honest. I remember now though, that they were the best compromise for the width of the rim as well.

 

I can't imagine that having different size wheels will do the handling any favours.

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My car doesn't have any rubbing issues with 285/35/18 on Lexus 18x10 GS300 Sports wheels and stock Bilsteins. Maybe if your wheel offset isn't exactly right it will be a problem.

 

Interesting.. Arons had loads when we were going around the Ring.

 

Hes running 18x10s on 35/285s too iirc... I wonder how your offsets compare... oh and he was on stock UK suspension.

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