SSP-G QMB139 50cc Adjustable Racing Clutch seat lock There are too many variables

There are too many variables involved with user-installed parts

Specifically designed for Long Case GY6 150cc engines with 12 or 13-inch rear wheels

Includes anodized aluminum mounts and powder coated steel hardware for left and/or right handed threads

Model: VRM-133

SSP-G QMB139 50cc Adjustable Racing Clutch seat lock There are too many variablesHigh Performance Adjustable Racing Clutch for 50cc engines. Spring loads can be adjusted by using the lock in positions. Under the clutch shoes screws are attached to function as adjustable inertia weights. Applications include: Chinese 50cc 4 stroke scooters, Genuine Buddy and Roughhouse 50, Yamaha Jog Zuma, Chinese and Taiwanese 1E40 1PE40QMB 2 stroke scooters, and Honda Elite 50 and Express NC NU 50. Inner Diameter: 24mm x 28mm Adjustable Made in