I have these rim: http://www.revwheels.com/m10.html which are 17x7 with a 42mm offset. I'm running 225's right now but I need as much traction as possible so I'm wondering if 235's will fit. I would really appreciate some input.
A 235 on a 7 inch wide rim is not a good idea, sure it can work but certainly not recommended!
I run a 235 on a 7.5 wide rim and even that is pushing it (should be 8) however I have no bulging on the sides like in the picture above.