Im looking into upgrading to a set of bead locks. I recently went out riding was going up a hill climb and hit a rock pretty good and nicked the rim a little and put a little slit in the side wall.I want a rim that is lightweight durable and can handle rocky terrain. Im looking for some insight about what size wheel to go with. Im going to throw the stock dirt commanders on them… front size – 27-9 rear 27-11.
These are the rims im intrested in. HiPer Sidewinder Beadlock Wheels w/ Customer Color: SideBySideStuff.com

what difference in performance does it make in size for example a 12×6 vs 12×7 vs 12×8?
what offset should i go with?