Dr. Pulley 19x15.5 Sliding Roller Weights Vespa/Piaggio 50c 28mm intake valve BMS / Lance / SSR:

BMS / Lance / SSR: BMS: Heritage 150

Comes fully assembled

YN1P57QMJ Big Bore Kits 58

Photograph is for reference only

and base gasket

Dr. Pulley 19x15.5 Sliding Roller Weights Vespa/Piaggio 50c 28mm intake valve BMS / Lance / SSR:Dr. Pulley 19x15. 5mm sliding roller weights for Vespa and Piaggio 4 stroke 50cc scooters. The patented sliding shape allows the variator to open wider and close further than standard round rollers delivering faster acceleration off the line and a higher top end speed. Set of 6. SKU: 1200 1108. Key Features Broader gear ratio belt sits lower at start up and higher at top speed than OEM rollers allow Self lubricating SL 9 nylon composite heat