oh, right. i was talking about bike dancing. i'd noticed the radball frames before. i also notice they use a smaller ball...seems like it's for ease of hopping the front wheel over the ball to shoot/stop it.

carleton--that's pretty much what i have in mind. i may do a different chainring...but that one is sort of cool. i mean...most bmx chainrings that are cool are as dorky as they are cool, but it's that mixture that makes me want one.

oh, but what bb are you using, and how'd you get the chainline straight?