Quote:
Originally Posted by Dhoffm80
lets say 0% is the 8in rim when you put the same tire on the 8.5in you will be stretching 225 tire in the rear more then front pulling the radial belt closer to the rim decreasing rolling diameter
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Maybe, but i doubt that it would affect that much especially between 8 and 8.5 wide wheels. Maybe if your rear wheel would be 9.5 or wider.
225= 22.5cm wide tyre
8 wheel actual width + 1inch overall width of the wheel= 22.5cm
So wheel and tyre have same width.
8.5 wheel actual width + 1inch overall width of the wheel=23.75cm
23.75cm-22.5cm= 1.25cm
1.25cm/2= 0.62cm
So 8.5 wheel is 6mm wider/side, than the tyre.
http://www.flushstance.com/wheel-measurements/