I searched the archives and found little on my question. I have been told that the stock chain on the '00 wr is the cats meow. One owner said he rode his 2000 miles and never had to adjust his. Me, on the other hand, seem to be adjusting mine after every second ride. I will start to hear that familiar chain slap, and a quick adjustment will take it away. I do push 250 pounds though. Is it normal for the chain to stretch that much? Should I upgrade?