This is an aftermarket HIGH PERFORMANCE clutch kits By Vito's Performance
Contains clutch fiber friction plate and steel plates and spring kit for your Yamaha YFZ450 carb model
Fits all years with the carb: YFZ450 2004-2009, and 2012-2013
Perfect for modified bikes (or stock bikes) - the springs are 15% stronger than stock, so they can handle more HORSEPOWER without slipping
These are not the cheap-o clutch kits available on eBay - these will actually let you get ALL the usable power from your motor down to the ground, even if you double your HP on your ATV!
Not recommended for bike with 100+ HP