Umatek Snow Powerbloc 80 Drive Pulley | Yamaha 500 - Phazer (2007-2018) Vent Kits & Prefilters which on a two stroke

which on a two stroke will increase throttle response and power in the low to mid RPM range

SVS (Solar Visor System) has an inner sun lens with premium anti-fog coating is easily lowered and raised with state-of-the-art high technology in-mold rubber tab for easy use with gloves on

Ultra High-flow ventilation system for maximum air exchange

Offered in standard and tapered styles

Umatek Snow Powerbloc 80 Drive Pulley | Yamaha 500 - Phazer (2007-2018) Vent Kits & Prefilters which on a two strokeUmatek Snow Powerbloc 80 Drive Pulley Yamaha 500 Phazer (2007 2018) The Powerbloc 80 is the latest driver pulley designed by CVTech. This pulley as been developed to offer an alternative to snowmobilers who want maximum performance and are tired of wasting time and money on maintenance of their original pulley.