I've always thought the MDX looked a bit "under-tired" with the 235/65 17's. I think a wider footprint would benefit (the looks of) the X. Without purchasing new wheels, I'd like to put 255/60's on the 17 inch wheels when my OEM's need replacing soon. The dimensions are pretty close, except for the 20mm wider tread, which is what I want. The only concern I have is that a minimum 7" wide wheel is recommended for that tire size. The OEM 17's are only 6.5" wide. Should I be concerned?