Dr. Pulley 21x15 Sliding Roller Weights Fly 50 Direct fit using existing hardware

Direct fit using existing hardware

Restore your engine's heart with the Universal Parts 6-Pin AC CDI

25"x10"rear rim replaces stock equipment on the CSC go and 139QMB Chinese scooters using drum brakes

7 inches apart

2 connections (4 pin/3 pin)

Dr. Pulley 21x15 Sliding Roller Weights Fly 50 Direct fit using existing hardwareDr. Pulley 21x15 Sliding Roller Weights for the Vespa GT 200, Vespa GTS 250 and Vespa GTS 300. All weights on sale. Please select weight from drop down menu. Traditionally, gear ratio is changed by the up and down rolling movement of the roller weights in the ramp of the Moveable Drive Pulley (MDF). Now the innovative Dr. Pulley Sliding Roller Weights slide up and down the ramp to change the gear ratio. This unique sliding movement (not rolling)