I know the subject chains gets beat to death, but I have one more question on the subject. When do you replace your chain? Not at how many miles, because that depends on riding style, cleaning habits, etc. I have an 08 Wee with 20,000 miles on the stock chain and sprockets. I take very good care of them and I can't see any wear on the sprockets, but I am starting to get 3-4 very slight tight spots on the chain. They almost go completely away when the chain is freshly cleaned and oiled, but after riding a little, you can put it on the centerstand and spin the rear wheel slowly and see a few very slight sticky spots. You have to really watch for them to see them. So, does that mean replace it all now, or do I have a couple more thousand miles on it? When I do replace, I'll do sprocket and chain at the same time. Probably the DID set from bikebandit or whoever has the best price.