What crank length do you ride on of curiosity?I never knew what mine was until I got a cadence measuring computer. I used to aim or what I 'thought' was 90. I now know I do pretty much bang on 100rpm - my averages are consistently in the 98-102 bracket. it's what works for me, and I'd describe myself as a 'fast commuter', but not anywhere near a competitive cyclist
Hardly a technical discussion, just a side comment on a post. Deal with it
The speed at which the your foot is travelling at around the pedal circle. If you were to constantly ride at around 2.25m/s foot speed by default (124.5rpm on your cranks) you would be reducing your recovery time for a ride to the absolute minimum.
Correct me if I am wrong here, but the length of crank length is irrelevant, in term of r.p.m. in a given gear, one r.p.m. of the crank for example a 52th front and 13th rear gives a 4:1 ratio so a 110mm crank length will turn the rear 4 times as will a 170mm crank length, the longer crank will lower the overall gearing because you have a greater circumference to travel, giving more leverage. if my understanding is correct.
I think so too, but the greater leverage on the longer cranks needs your foot to move further per rotation so at a higher footspeed. I think GrasB's post would imply that with much longer cranks, you'd pedal a slower rpm, with the same footspeed, but presumably a harder gear ratio (with the higher leverage), so it would appear more grindy in cadence terms, but its the same output... i think
