freewheel drive system

The scooter guy brand freewheel drive system features heavy duty 8mm chain , your choice of many configurations , there are four sizes of drive sprockets to choose from , 11t 14t 17t and 20t 8mm . and three large chain ring sizes , 54t , 63t, and 74t 8mm. so depending on your motor the bike and the road you are riding on . we can find the perfect gear ratio for your project . you will get everything required to drive the bike with the motor , from the front crank . threaded cranks , chain rings custom fit, freewheel , drive sprocket , c clip ,and chain . $ 125.00  free shipping still .