This high quality accessory is the super transmission set for 125cc Yamaha scooters is made by NCY Our NCY Super Transmission Set fits the Yamaha Zuma 125, and possibly others as well Description This high quality accessory is the super transmission set for 125cc Yamaha scooters is made by NCY. Our NCY Super Transmission Set fits the Yamaha Zuma 125, and possibly others as well. It is one of the best upgrades for your Yamaha scooter, offering quicker acceleration and higher top speeds. From rapid downshifting to slow cruising, this kit will provide a smooth ride. Ultralight balanced components, oversized wear pads, and state of the art Teflon coatings ensure superior performance and long service life. The NCY Super Transmission Set includes: Ultralight gold Teflon coated overdrive variator Ultralight outer drive face Ultralight large shoe racing clutch Ultralight drilled & vented clutch bell Ultralight flywheel “fly wheel” Dual range secondary slider Roller weights Compression spring Ball bearing compression spring seat We recommend that you use a new belt with this kit, as well as using some graphite or Moly grease when assembling the components. Let Monster Scooter Parts be your source for NCY scooter parts and accessories. WARNING California Residents : Proposition 65 Warning