Doppler S2BR Variator Kit Piaggio 50 / 70cc engines
With re designed ramp angles and supplied with 3 sets of rollers weights you can be sure to achieve the right setup. A nickel silicon treated flange with a wider operating range over the standard unit gives great acceleration and engine response not to mention huge gains when changing speeds like over taking etc. Complete with a torque spring designed specifically to prevent excessive pressure on the belt when the device is fully open.
Package contents are as shown in the picture above