OK, I've read all the info regarding changing out my chain to an o-ring chain. Where do I get one? How much should one cost? Since the majority of my riding will be on the street, which sprocket should I get. (thinking the 47 tooth would be good). I have a 2008 TW and love it. Had it about 4 months and hardly ride my street bike anymore. In fact, it is for sale. I put on the Stearns seat cover from WalMart, what a difference. Thanks for all of the info. Ride safe.