I just pulled the rear wheel off my bike and as you know, you take the rear brake unit off the swingarm at the same time. Well once I had the unit off I had a quick inspection of the swingarm locator (on caliper)and it has worn where it locates on the swing arm. About .125mm not all the way along but around 1/2 the way. Has anybody noticed this as well? The rear wheel wasn't loose and the brake assembly was correctly located.