Yamaha Zuma 125 BWS WF Forged Secondary Sliding Sheave Assembly.High Performance Forged Secondary Sliding Sheave Assembly. This thing is amazing! A must for any true performance junky. Slotted and angled groves for increased top end or acceleration.

We will test it out on our own scooters

studs or chain included

Carbon fiber (not real)

Great upgrade to the stock exhaust system

Very lightweight

Ban-Jing variator with Rovira Motorcycle logo

Inner Diameter: 35mm

Will not work on the new 63mm engine with the engine mount under the engine

Roller weights must be staggered to be balanced

-8mm exhaust stud and gasket included

(in our ebay shop)

Dimension: 15mm shaft x 115mm diameter