I've bought some 18"x8" Alloys on Fleabay.
At the moment they've got 2x 245/45/18 and 2x 255/45/18
I see from tyre calculators that with 245's the smallest rim you should put them on is 8" but with 255's you shouldn't put them on a wheel smaller than 8.5".
Will this have a detrimental afftect on the tyres/rims/my car's ability to stay out of ditches, or should I swap them for 225(or 235)/40/18's as soon as I can?
Only reason I ask is the tyres are pirellis and they got a good bit of tread left on them each.
Thanks in advance!