Grizzly 660 Hot Rod Extreme Clutch Kit – The best overall clutch kit available on the market.

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.

This kit changes the gear ratio on the bottom & the top of your bike. A huge gain on low end power and torque, a stronger midrange & more on top end too.

The extra top end is nice when you want to run low range so it doesn`t max out so quickly from mud hole to mud hole, trail riding, or working in the yard or farm.

Helps restore power loss due to adding bigger/heavier tires & helps to get them turning in the mud. Better back shifting & throttle response.

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.

This Grizzly 660 Hot Rod Extreme Clutch Kit Includes:

• A new milled Yamaha sheave
• Dr. Pulley OD weights
• OEM camplate
• OEM camplate sliders
• Anti-friction washer set

Your specific bike set-up may also require an upgraded secondary spring in addition.

*** If you are having any questions or are having any problems with the purchase of this item please call 304-877-3419, Mon-Fri 10am – 6pm est ***