Fine-tune your QMB139 scooter’s CVT clutch engagement with SSP-G Performance Torque Springs. The torque spring controls when the rear clutch engages, directly affecting low-end pull, acceleration feel, and overall CVT response. Available in 1000, 1500, and 2000 RPM options to match your riding style and engine setup. All SSP-G parts are sourced from top manufacturers in Taiwan. SKU: 169-207.
RPM Selection Guide:
1000 RPM: Earliest engagement — best for maximum low-end torque and stop-and-go city riding. Ideal for stock or lightly modified engines.
1500 RPM: Mid-range engagement — balanced performance for general street riding. Good all-around choice for most riders.
2000 RPM: Latest engagement — best for performance builds, big bore kits, and riders who want a more aggressive power band.
Features:
Available in 1000, 1500, and 2000 RPM engagement options
49mm inner diameter — direct fit for QMB139 clutch assemblies
Allows precise CVT tuning to match engine mods and riding style
Compatible with SSP-G clutch assemblies and most OEM QMB139 clutch bells
Made in Taiwan by SSP-G
Specifications:
Inner diameter: 49mm
Available RPM options: 1000, 1500, 2000
Engine compatibility: QMB139 50cc/49cc 4-stroke
SKU: 169-207 (suffix -1000, -1500, or -2000 by variant)
Compatibility: Fits QMB139 50cc/49cc 4-stroke scooters and all makes/models using the 139QMB engine platform, including TaoTao, Roketa, Jonway, Wolf, Ice Bear, Vitacci, Peace Sports, and more.
California Prop 65 Warning: www.p65warnings.ca.gov
