Quote:
Originally Posted by tipy
can any bike expert tell me difference between 170mm and 172.5mm
crank arm length?
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About 2.5 mm... Er actually exactly 2.5 mm difference in length.
That was the smart aleck answer. Basically you should select crank arm length based on the length of your femur.
In general bough sprinters and track cyclists tend to like longer crank arm. And climbers and high Cadencen spinners prefer shorter ones.
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