Suck on bike
What is chain suck??
This summary provides a glimpse into the substantial investigation done to unravel the frustrating problem of chain suck.
Description:This is the underside of the bike. The chain "rode up the backside" of the chainring and jammed between the ring and the bike's chainstays. This interrupts your pedaling and can damage your chain twist, break, crush, etc. Not to mention damages your frame.