800W 36V Hub Motor - To Fit 18" and 20" bikes with the 800w motor

To Fit 18″ and 20″ bikes with the 800w motor. Options: Solid plate cog set up. Cog set up with clutch. Please note: The solid plate cog set up can only be used on bikes that already have them, If your bike has a cog set up with a clutch the control unit would need to be replaced or re-programmed by us to work with the solid plate cog set up. All 18″ and 20″ Revvi bikes can use the cog set up with a clutch, even bikes that were supplied with a solid plate cog set up.Image attached shows the difference between solid plate and clutch cog set ups.