NCY Secondary Sliding Sheave Assembly; Dio, Elite, SYM DD

NCY Secondary Sliding Sheave Assembly; Dio, Elite, SYM DD 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 Dio & Elite as well as SYM DD.