Of course sorry its a 58 Super Rocket, swingarm. The brake plate is on the other side of the wheel though. What I am referring to is the sprocket side which without my spacer has just shy of 1/4" float with the bearing sliding back and forth on the stub axle that appears to have a space 200 odd thou wider than the .625 bearing that is the correct one for the job according to the parts book. Of course the space is taken up once the wheel is attached with the brake drum and wasted spacer. Seems odd to have the sprocket side floating at all though.