Originally Posted by
bobotech
I'm confused by having a longer crank for shorter person. Sure the crank will come up higher but the crank will be WAYYY down at the bottom of their power stroke. As the child pedals, their feet would leave the pedal as they push down because their shorter legs won't be able to reach the pedal on a longer arm at the bottom of the compression stroke.
A solution for shorter riders is to raise the crank centerline closer to the seat with shorter arms.
Yeah, me too!
There is actually an auxillary bottom bracket to do just that- raise the bb centerline for shorter riders.