Originally Posted by
DiabloScott
Also could be a worn out chainring - if the teeth are sharkfinned the chain will act similarly to being gunked up. When backpedalling, the chain will hang on below the tangent point on the top, and then let go suddenly.
I just got my bike few weeks ago, I think it's bad adjustment instead as I tried to mess with the screws on the FD and RD since the gear shifting was not so smooth and i couldnt get it to the Biggest chainwheel at the back.
btw it's didnt drop off frequently, but the gear shifting is smooth now. Just that I wonder why it fell off and caught between the crank and the wheelchain set.