Quote:
Originally Posted by wpoll
The OP never reported back - so who knows? 
FWIW, I still think it's a bad idea - for the reasons already mentioned PLUS you'll have no spare tyre, since the factory 235/65-R17 that has the same rolling diameter as the 255/55-R18 tyres won't match the larger 265/60-R18 and you'll munt your transfer case if you have to drive on the spare (>5% difference in diameter)...  |
I think there are coding options for tire sizes available, if I remember correctly. The factory 20" IS tires are actually smaller circumference than the stock 18" tires. Because of this I think there is actually coding to account for this, but I will need to go back and check for the IKE.
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2003 BMW X5 3.0i -- MT5, 3.64s final gears, H&R lowering springs, K-Mac bushing kit
2007 BMW X3 3.0Si -- MT6
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