I have a 2014 Brutale 800 and have noticed the black paint on my wheels appears to be oxidizing. It's almost like the wheel is flat black. About 4 months ago I had the rear tire changed. The old weight was pulled off and I noticed the paint under the weight is glossy. I have the same issue with the front wheel as well. I don't think I've used anything harsh on wheels. Anyone else with this problem?