This sheave is milled for even more bottom & top end, it’s the perfect combination of both performance & quality. Great for trail, mud and sand riding as well as rock crawling, plowing and hauling.
The lower gearing on bottom end will extend the life of your wet clutch & the higher gearing on top will extend the life of your motor. Reduces clutch heat & engine noise. Includes a new milled Yamaha sheave, Dr. Pulley OD weights, OEM camplate sliders, anti-friction washer set, Polyurea grease.
With this Grizzly 550 Stage II Extreme Kit, you can add the extended cage, and Run our milled sheave with a shim for larger tires, towing crawling, etc.