Hey, I am attempting to make my Try-All rims into single wall rims, to get the weight down as much as possible, a few riders I have ridden with say it's a good way to loose a few pounds off the bike, anyone have any ideas on what tools to be used? just a grinder and a selection of files? Does anybody also know how much weight this will save? thinking about making the holes square and drilling the sidewalls abit, but only on the front. Is it worth doing on the rear? I'm not very harsh but don't want to be splashing out on a new rim every 1-2 months . Thanks for your time so far, I'll most likely have more questions once I get stuck grinding .