Reserve from the case
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Aug 28 - Sep 2
Reserve from the case
Ships within 48 hours · Estimated delivery Aug 28 - Sep 2
high-RPM engagement
Includes an orange handlebar tether to remind you the lock is engaged before you ride off
You'll also want to pick up a set of Aluminum Right Angle Valve Stems to complement your new tire purchase
Center diameter: 28mm (1-1/8")
ball bearings
Naraku QMB139 Adjustable Drive Sheave vl1 high-RPM engagementWith more linear slots, Naraku's Adjustable Drive Sheave (torque driver, secondary slider) improves acceleration and top speed in bikes with 50cc 139QMB engines. Specifications: Overall Outer Diameter: 118. 7mm Inner Diameter: 33. 5mm Includes rear pulley, bearings, and nut NOTE: If installing on a CSC go, you'll need these clutch slider pins Compatibility: CSC Bella Classic 50 CSC go CSC go MAX CSC Nitro Sport 50 CSC Pug 50 139QMB based 50cc 80cc
US$ 75.00
US$ 84.00
US$ 56.00
Pay in 4 interest-free payments of $26.25 Learn more