G6 Gearbox Parts - A G6 gearbox uses 10 teeth on the small sprocket on gearbox and 22 teeth on rear sprocket mounted to the rear wheel.  The rear sprocket is the ratcheting type that allows the scooter to freewheel. 

Notice:  If you have a Viper scooter that came with a metal front mud cover than you have a G6 gearbox! 

The G6 is not used on any other Viza scooter model.