My mates wondering this, i dont think it can be done but im not too clued up on mods. Is it possible to have 2 or 3 gears on a mod bike and just use a bodged mtb SS tensioner to keep the chain tight? Hes getting an 05 T-pro i think, but he has to ride 3 miles when he comes out, which as you can appreciate will take some doing on a mod bike. I said just find a happy medium between a good riding gear thats easy enough to do trials with, but hes determined to find a way to get 2 or more selectable gears. Im not so sure about hub widths, axle sizes etc. Cheers, Tom