Its the shell that scratches against the motor. If you remove the shell you will see nasty paint scratches on the motor. You are the second one escalating me this issue. Must be a batch issue...Replacing the shell didnt fix, next in line was to install a new motor. Suggest you get this fixed, there could be some side effects, you don't wanna find out at 25mph in traffic🤷🏻♂️.
Regarding my V11, i returned it. There were too many issues for a new wheel, was taking to much time go fix to be acceptable. I need to sell the never used v11 clark pads v2 i bought for it now. Will get a Sherman i