Don't do it. If you ever want to or have to change the tire the rim will be one step from useless. It will take some heavy work to get the wheel clean enough to hold air. Ya you can wire brush it but then it will rust and slip worse than before. I am an advocate (as is harley) of reverse wheels for the ultimate poor mans bead lock. Hossbaby50 blew a bead on his 35" MTR's with 19 PSI using 15X8 standard steel wheels, I took the same line (it scoots the rear around heavily and rips the bead away) with my 15X8 reverse wheels and only 13 PSI with no problems or even a burp from my 37" MTR's.