Umatek Powerbloc 50 Driven Pulley | Yamaha Exciter II-LE-ST-SX (1991-1993) Light Blue Replacement ventilated double lens for

Replacement ventilated double lens for 210° goggles

Forged carbon steel head for superior edge retention

convenient and ideal solution

Large mesh panel on back of collar for optimized levels of airflow

The breath deflector minimizes visor fogging

Umatek Powerbloc 50 Driven Pulley | Yamaha Exciter II-LE-ST-SX (1991-1993) Light Blue Replacement ventilated double lens forUmatek Powerbloc 50 Driven Pulley Yamaha Exciter II LE ST SX (1991 1993) 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.