Originally Posted by Rmountcastle001
Is that a bad thing?
From what I've read, that's well past redline (maximum safe) rpm. You can sense @ what rpm range your China engine or my Tanaka 47R feels happy. If it's @ 5,500rpm, then gear it accordingly. Try riding your bike @ different speeds on flat ground, and determine @ what speed your engine feels best. If it's 24mph (for instance), then with a 44t sprocket, your engine's revving @ 5500rpm. If it's happy @ that 5500rpm, but you want to go faster @ that rpm, then install a shift kit. That way, you won't blow up your engine.