Hello all. I'm new to the forum but not new to motorized bicycles. Have no idea when these China motors came out but I have been using them for a couple of years now. My latest build is a full suspension bike. What a pleasure to ride. I am pretty happy with the way it turned out although there were some obstacles to overcome. The hardest of them was keeping the chain from bunching up in the motor when engaging the clutch to start it.. Here are some pic.s to show how I overcame the problem.