Re: Ditch the idler!!!
i've put a coupla hundred miles on mine so far, and the only chain problem i've had was the first 15 minutes after i built it, and the masterlink fell off. so i got rid of it. well, i got rid of the parts i could find, anyway.
the thing is, you just gotta get lucky with the right bike. most builds i see need the idler, because they just don't line up.