for Vespa 50 Special V5B1/ 2T 2??/ V5B3T
helical cut teeth
for primary 16/68
Product description
In the engines of smallframe VESPA models the power created by the motor is transmitted by the primary drive cog, located on the crankshaft, to the primary driven cog located on the outer edge of the clutch basket. The clutch assembly is located on the input shaft of the motor itself which transmits the power further through the output shaft to the rear wheel. The more power the motor puts out, the sooner your clutch needs replacement. The original primary drive has diagonally cut (syncromesh) connecting teeth and are delivered including the primary drive cog and clutch basket with the corresponding cog around the outside.