SSP-G QMB139 Performance Variator Kit adjustable clutch This performance exhaust system is

This performance exhaust system is custom-bent to align with standard body frames

Throttle Control Style: Linear Variable-Speed Thumb Lever

progressive braking with reduced lever effort

maintenance

GY6-specific mounting bracket for a secure

SSP-G QMB139 Performance Variator Kit adjustable clutch This performance exhaust system isSSP G After Market Performance Variator Kit for QMB139 engines, Honda Ruckus and many other makes and models. Roller Weight Size: 16x13mm (8g) Variator Outer Diameter: 89mm Boss Inner Diameter: 14mm Boss Outer Dimater: 20mm Boss Length: 39mm Honda Ruckus 50 (NPS50), QMB139 50cc 49cc , Various unlisted makes models