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Discussion Starter #1
Hi. I would like to ask those expert here that., what is the widest tyre I can mount on a 18X8.5 rim.

265 or 255..

thanks
 

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Discussion Starter #3
Offset and fender isn't a problem...

I just wanted to know technically how wide of a tyre a 8.5 wide rim can fit.


thanks
 

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depends on how thin the sidewall is, if its for an SUV you can get away with 295s cuz the big sidewall flexes, but for a passanger car I would think that 245 or 265 would be the biggest the sidewalls would allow.
 

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Discussion Starter #5
Oh., So basically saying a 8.5 wide rim will be able to mount a 265 tyre on it..,. thanks
 

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I have 255/35/18s on my 18x8.5" rear wheels and it's just perfect. Sidewall is parallel to lip of wheel and is flush.

I have 235/40/18s on the front wheels, same 18x8.5", no sidewall stretch but the sidewalls are not flush with the wheels so that if you laid the wheel on the ground, the back of the wheels still touch. the wheels with 255s do not touch the ground, only the tires.

I don't think 265s will fit, go to tirerack and check out the specs of the tires you want. It will have the recommended rim width range.
 
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