How much use have you guys with 650r's gotten out of you clutches? my 03 650r is about 18 months old and my clutch is on its way out . there is no question i am very hard on it, I do tons of single track and always use the clutch to tame some of the power out of the beast when the going gets tough, but i still thought it would last at least 2 or 3 years. this is the first clutch I've ever done in on a dirt bike , that said the next most powerful dirt bike I've ever owned was a yzf426. what should i expect to pay for a clutch kit?