D Dergie New member Nov 19, 2010 #1 I ride a bmx, and each time I get on and sort of force my feet on the pedals to speed up, the left and right pedal keep popping down while the chain is not falling out at all. It happens more often when I stand.
I ride a bmx, and each time I get on and sort of force my feet on the pedals to speed up, the left and right pedal keep popping down while the chain is not falling out at all. It happens more often when I stand.
