Ive got a 4.5inch bandit 600 wheel in my GSX750, to get the chain to run equally between the frame and the edge of the 150 rear tyre I used a thickish washer behind the front sprocket to offset it, the problem their is you cant use the lock washer as the sprocket sits at the end of the splines. but the sprocket i used has 2 drilled and tapped holes in it so i made a plate to sit up against the sprocket nut to stop it from coming loose. then i had to get the rear sprocket carrier machined down so the sprocket was closer to the tyre. the chain is in line and I have loads of room from the frame and tyre.