I have two 2012 tw's, mine has 3000 miles, the wifes has 900 miles. I just purchased two 428v did chains for $92 shipped on ebay, wich seemed like a pretty good deal. I have read on this forum that the sprockets should be changed with the chain. The sprockets don't seem to be worn that badly to me. What would you do? I am sure I could make it till spring on the stock chain, but it does require alot of adjustment.