Max Rear Tire Width On An Oem 17" (Is 250 Awd 2006)

[SSSA-IS]

Hello,

I am currently running at the rear 245 R17 45 and its now time to replace it after 2 yrs. I was thinking of putting the slightly wider 255 R17 45.

Has anyone put the 255 in the rear on the stock OEMs and I just wanted to know if it will a good fit ? Would it rub the inside arches?

Cheers.

S

[Tango]

The tyres will fit OK, but as well as the slightly wider tyre the overall diameter will be 9mm bigger than the originals. Most manufacturers recommend a +/- 2.5% tolerance so you will still be within that as they will be +1.38%.

However, unlike the RWD IS250, the AWD IS had the same width tyres all round. I do not know what effect wider and bigger diameter tyres on the rear (only) will have on the set-up or handling of your car.

[SSSA-IS]

Cheers mate. I m stil in 2 minds about it. Thanks anyways.

[Alvo03]

I have wider wheels on the rear than stock ones but still run 245/40/18 coz its cheaper.

255 is less common.