Umatek Powerbloc 50 Driven Pulley | Yamaha VK 540 II (1993-2005) Fluo Yellow Advanced channeling ventilation system sweeps

Advanced channeling ventilation system sweeps heat and humidity out back of helmet

but remarkable grip when turning- all without increasing fuel consumption

The direct ventilation system and teethless waterproof zippers make it easy to adjust in changing conditions

standard lever

Glued Surface Mounting Plate

Umatek Powerbloc 50 Driven Pulley | Yamaha VK 540 II (1993-2005) Fluo Yellow Advanced channeling ventilation system sweepsUmatek Powerbloc 50 Driven Pulley Yamaha VK 540 II (1993 2005) 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.