Re: chain and tire problem!
Check your rear sprocket. Some of them (most) have a dished profile. The sprocket teeth are offset to one side. If your sprocket offsets toward the wheel you might get clearance by flipping the sprocket over putting the teeth outboard but watch for seatstay clearance when you do that. If that becomes a problem you might get away with spacing the wheel away from the frame with a couple of washers on the rear axle on the motor drive side.
Good luck, keep us informed. Happy Holidays
Age and Treachery Will Always Triumph
Over Youth and Skill & "Charlie Don't Ride"
Last edited by 2door; 12-24-2008 at 02:46 PM.