Performance Clutch Drum, Part #169-25

After-Market Clutch Bell/Drum Type-1 for 150cc and 125cc 4-stroke GY6 engine based scooters, ATVs and off-road karts. Number of Splines: 19. Overall Inner Diameter: 125mm. Overall Outer Diameter: 137mm. Splined Inner Diameter (peak to peak): 13.5mm.