SSP-G QMB139 50cc Adjustable Clutch Set

High Performance Adjustable Clutch Set with a Ventilated Clutch Bell for QMB139 50cc, 4-stroke engines. Pillow spring loads can be adjusted by using the lock-in positions. Under the clutch shoes screws are attached to function as adjustable inertia weights. (Please note: no other part of the clutch is adjustable.)

• Clutch Bell Inner Diameter: 107mm
• Clutch Bell Outer Diameter: 115mm
• Clutch Inner Diameter: 12mm
• Uses 6901 RS bearing
• Number of Splines (clutch bell): 22
• Splined Inner Diameter (peak to peak): 11mm
• Splined Inner Diameter (valley to valley): 12mm
• 1500 RPM Torque Spring
• 1000 RPM Pillow Springs
• Made in Taiwan
  

• Adjustable pillow spring preload via lock-in positions - no clutch removal required
• Adjustable inertia weight screws under clutch shoes for precise engagement tuning
• Ventilated 5-spoke clutch bell for improved heat dissipation
• Dual spring system: 1500 RPM torque spring + 1000 RPM pillow springs
• 6901 RS sealed bearing | Made in Taiwan by SSP-G

Bell ID: 107mm | Bell OD: 115mm | Clutch ID: 12mm | Bearing: 6901 RS | Splines: 22 | Splined ID: 11mm (peak) / 12mm (valley) | Torque Spring: 1500 RPM | Pillow Springs: 1000 RPM | Engine: QMB139 50cc 4T | Origin: Taiwan

Genuine Buddy 50, Roughhouse 50; Baja SC50, SC50-P; Schwinn Laguna 50; Panterra, Kymco, Roketa, Tank QMB139 50cc models; Qingqi QM50QT-6V; any QMB139 49/50cc 4-stroke with 107mm clutch bell