Agreed, that sounds painful. I'll bet a spinner can so some real damage.
Way back when, I had 285x60 Yokohamas on the stock rim. Mounted 2 of the tires myself. It's a pain in the *** to mount but can be done, though not recommended. Any tech who gets that job will either turn down the job or curse you in his head while he's mounting. Simply put, 7" is too narrow for a 285. I stepped the rims up to 8.5" soon after. Like I said, it can be done, but there are better options *cough*buy some wider wheels*cough*.![]()