Originally Posted by Mabman

That motor looks more like the Chinese clone Hua Sheng kit with a Hoot gear box? The motor is tight but those gear boxes are sketchy at best. The HS motor puts out a bit less hp than the GX 50 but is still plenty. For sure they are quieter and less messy than the Chinese 2 stroke stuff.

The big problem as I am sure you found out is the overall width of this type of setup. You need some seriously wide cranks to clear the gearbox and the pull starter housing which makes for some really bad Q factor and a hard to pedal bike. But it looks like you are having a good time with it and that is the main thing