Its a tire issue, not the wheel so not sure what you would expect Andy to do.
Take a picture of your rear tire so we can see if you have the "K1" marking on the sidewall. If you do then thats is your problem right there. Michelin is your problem with selling two of the same tire, same size but having two version of it confusing the hell out of people. Again i had BOTH version of the rear tire in my possession at one point and the difference is what you are seeing. I am willing to bet money on it.