Blue Line Starter Clutch and Gear Kit; GY6 gs150 Pulley 20x12mm Sliding Weights replace

Pulley 20x12mm Sliding Weights replace the flat-spotting round rollers in your variator with a patented non-round geometry that lets the variator retract further for a lower starting ratio and extend further for a higher top-speed ratio — delivering faster launches and lower cruising RPMs without touching your belt or variator

66mm / OD: 25

protection

Factory seat cover for Sprint seat (CSS1)

widening the gear ratio for stronger off-the-line acceleration and a higher top-end speed

Blue Line Starter Clutch and Gear Kit; GY6 gs150 Pulley 20x12mm Sliding Weights replaceStop chasing a no start condition with a worn out starter clutch. The Blue Line Starter Clutch and Gear Kit is a complete OEM equivalent replacement for GY6 157QMJ based 125cc, 150cc, and 169cc scooter engines giving you everything you need to restore reliable electric start in one kit. Includes the starter clutch, 60 tooth starter gear, and needle bearing for a full, professional grade repair. Kit Contents & Specifications Keyhole Diameter: 22mm