Quote:
Originally Posted by GrandSport
what makes you say that. 10 inches = 255mm.
From the tire manufacturer: Rim Width Range: 9-11". Dead middle.
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Yeah it's a fine fitment for normies. If you're looking for tenths of a second, 10s are narrowish for 275s. I've run 225/45s on 9" and on 8" and it does make a difference in terms of feel and I would bet lap times (no back to back data on that though).
In any case, at your weight and power level I would bet that even 255s on 10s is already getting past the point of diminishing returns for race track (autoX may be different). Even if you could get them at the same diameter, which you can't. If spec tires and 255/35s or 275/35s are the only choice, I'd go 255 on 10s...