Do crank arms make a difference?
‘The research evidence is clear: crank length makes no difference to power on the road – track is slightly different – unless you go as short as 80mm or as long as 320mm.
How do you tap a crank arm?
What does a longer crank arm do?
While longer cranks do produce more torque, they also decrease cadence for a given effort because the turning circle is larger. Likewise shorter cranks produce less torque, but cadence increases for the same effort because the turning circle is shorter.