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

Specs

• 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