Dr. Pulley Vespa Variator Kit - 44mm Boss

Dr. Pulley Performance Variator Assembly V201503M1 for the Vespa GTS250 and Vespa GTS300. Specially Designed Ramp Shape Extended Ramp Length Adjustable Boss Length Racing Type Ramp Plate Please click here to view the Suggested Dr. Pulley Roller Set Up for Piaggio/Vespa 125cc-300cc scooters. Please click here to view Important Installation Information for Dr. Pulley Variators. Includes Slide Pieces  Does Not Included Roller Weights Number of Splines: 21 Drive Face Outer Diameter (A): 120.5mm Boss Inner Diameter (C): 17mm Boss Outer Diameter (B): 26.9mm Boss Length: 44mm  Ramp Plate Inner Diameter Valley to Valley (D): 17.15mm Ramp Plate Inner Diameter Peak to Peak (E): 16.5mm