Join Date: Jun 2006
Bikes: 03 Raleigh Professional (steel)
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Originally Posted by wearyourtruth
is there a formula or program that allows me to convert my mph to rpm based on my gear ratio? or vice versa. just curious really but i haven't found anything online.
RPM of the wheel? Or RPM of your feet (cadence)?
If RPM of the wheel, then gear ratio is completely irrelevant. See adriano's formula (which appears to be correct).
If RPM of your feet, it's only slightly more complicated. You'll need to use gear ratio to determine wheel RPM.
Stupidity got us into this mess - why can't it get us out?
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