I only have 8000 miles on the bike, but the last time I cleaned the chain I noticed that some of the teeth on the rear sprocket were canted forward. I also counted 21 pins, and it was just at the max for stretching.
These two things suprise me as I do not rip around all that much. Anyway, you guys got any suggestions?
BTW I clean and wax the chain every 600 miles.