I thought you didn't need a new chain only if you went -1 and +3 rather than -1 and +2. I was interested in getting a sprocket kit as well because i figured that losing some top speed is no big deal since I'll never reach it anyways. I went to the Starboyz wheelie school a week ago and it was the shit!!! I can ride them pretty good in first doing throttle wheelies but i'm still learning how to clutch it up. Can't seem to get the hang of clutching it up in 2nd at all and to do a good throttle wheelie in first i gotta be doing about 40 or so and I want the sprocket kit so that i can bring it up easier at slower speeds. A lot of people have said not to bother with a sprocket kit though until I get pretty good at doing them without it and I think i'm getting to that point. Anybody have some advice on learning stand-ups??