10G Multi-Speed Shift Kit and 1B-4G Transmission

10G Multi Speed kit and 4G-1B 8-hole Transmission:    Fits the HuaSheng Hi Rev 53cc 4 stroke engines described and listed under different heading.   Best used with a Multi-Speed Hub Axle Shift your motorized bike like a motorcycle!  Can even shift while stationary if a Multi Speed Hub rear axle is used.    10G was designed for a built-in tank S curve frame pedestal mount to enable having a 3-point lock securement.  However, a standard cruiser S frame will work if modified for 3-point attach. BEWARE:  10G cannot be used on a Straight Downtube Frame Bike due to inadequate clearance for the jackshaft at the backside of the engine:  Do you want to see how fast a little 53cc HuaSheng non-governed engine can take you on flat land?    If so, our 10G multi- speed kit is a way to do it.  Just don't take the engine past 6800 rpm and use common sense.   Some experimentation of drive sprockets may be required to get the most Max speed.  10G is designed to custom fit built-in-gas-tank bike frames w