Purchased a chain kit and it lasted 3 months before it started giving me problems. Then at 5 months it was done and they were wiling to replace just the chain but not my install cost and the sprockets. Now I have to pay for another install with better brand. I was told by RPE motorsports they have been hearing stories from customers coming of Chain Boss business practices and quality of products they sell. I dont want this to happen to anyone else and hope they can find my story useful.