,Just had Z1 lightweight flywheel, street performance 6puck clutch and solid transmission mount. I'm seeing breakin is 500miles under 4k rpm. Some say clutch chatter is non existent.. Oh it's real or,GATES G-FORCE WORKHORSE 29G3596 – CVT Drive Belt for Kymco UTV & Yamaha ATV & Access – JAY PARTS,Amazon.com: Gates 29G3596 G-Force Continuously Variable Transmission (CVT) Belt : Automotive,Gates G-Force CVT Drive Belt (Yamaha Grizzly/Kodiak/Rhino)