I have 3,000 plus miles on my chain and rear aluminum sprocket and they are still in great condition. I just replaced the front one as it was beginning to hook. I never even have to adjust my chain, it just stays put where I like it, and I never run my chain too tight and I am anal about lubing my chain as well.Super nice bike man, you might benefit from a new chain if it is too short, which I think it is. Personally I run my chains a little tighter (not that much though). If your looking for a new sprocket too as I replace my when I replace my chain, I'm a big believer in Renthal aluminum and renthal gold series chains. My aluminum sprocket has lasted me all season, and I race the longest season of anyone in my series, or state. The chain has held very nicely too. Food for thought