That was a really big help.
btw my rear width on my 12X is about 171mm with prisms.
A teammate made some 2mm spacers and that fits perfect.

I had the same prob with my rear
After small crashes the bearing was punched through the bearing holder.
I took a Washer size 7x14x2mm flexed it so that fits into the inside of the bearingholder. Since then no probs.