Quote:
Originally Posted by ever_green
eh yes thats what i said...the larger wheel is responsible as it makes for a taller overall gear ratio...higher rolling diameter.
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maybe we are talking semantics......a wheel is metal, a tire is rubber.
No, you said "wheel- steel".
for example:
you can have 245/50/18 tires on 18" WHEELS.
If you mounted 20" inch rims would you increase the overall diameter?
no. If you mounted 255/30/20 tires, you would DECREASE the overall diameter.
( you could also mount a 255/45/20 and that would INCREASE the overall diameter.)
There are TWO componets: the wheel and tire.
As I stated, it was NOT the wheel that determined the overall diameter, it's the tire you mount on the wheel.
Maybe you arent aware of the choices of tire sizes that can be put on a wheel. But they are very broad.
Again, the question is: what size TIRE was on there and what size tire is on there now. The rim has very little to do with the final overall diameter.
a wheel cant lower the rpm. ONLY the size of the tire.