NCY Secondary Sliding Sheave Assembly; Zuma 50, Jog

NCY Secondary Sliding Sheave Assembly; Zuma 50, Jog This NCY adjustable secondary sliding sheave has two sets of ramp angles, one steeper than the other. These allow you to adjust how quickly the pulley engages. A quicker engagement means more power off the line, and more gradual engagement gives you more power at speed. fits Yamaha Zuma 50 and Jog.