Naraku QMB139 Adjustable Drive Sheave vl1 Restore the security and electrical

Restore the security and electrical reliability of your vintage machine with the Prima 8-Pole Ignition Switch

Bolt hole diameter: 6mm

You'll also want to pick up a set of Aluminum Right Angle Valve Stems to complement your new tire purchase

Includes an orange handlebar tether to remind you the lock is engaged before you ride off

This semi-slick look is now available with B-proof technology

Naraku QMB139 Adjustable Drive Sheave vl1 Restore the security and electricalWith 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