The Polini variator is THE standard in upgrading your Yamaha Zuma 50 Variator. Widely accepted as the best variator on the market, the Polini verson adds performance accrose the entire power band from take off to top speed. Don't believe us? Ask your "Google Machine". It never lies!This Variator works wonderfully in conjuction with the NCY Performance Exhaust Pipe. Fits the following models:Yamaha Zuma 50cc and Vino 50cc 2-stroke modelsMalaguiti 50cc (Various Models)Aprilia SR (Pre-2000) *Performance parts are non-returnable and do not have a warranty. Install with care.*
