(Learjett @ Jul. 25 2007,23:09) I change sprockets all the time and, with the right tools it is a very very simple affair. Sounds like you got it Dad, but there are some simple little tips that I could possibly help you with next time. Right now I'm running a 17 / 42 for interstate travel, but I'm thinking about putting a 16 back on for the Fall Bash. If I do, I think I'll do a pic article for the board if there isn't one already.