I need to go stare at my bike but I don't think the rim should be centered in the SA. The SA isn't symetrical. The goal is to get the rear wheel centered with the front wheel but I don't think it is a huge problem if it is off by a few MM. It is more important to have chain to tire clearance. If you want to change it just grab a spoke wrench and loosten up all the spoked on one side by 1/2 turn while tightening them the same amount on the other side. Repeat until you are happy.outrider said:I just fitted my new wheels, the rear is a 17x4.25. The original XR Hub is offset. The new SM wheel is not, so the whole wheel doesn't center between the swingarm. It stays left but the sprocket and disk line up. Has anyone else seen this before?