As to cutting them off when real old-I use a grinder. Get rim protectors-some are better designed than others. MotionPro are good but don't always slip on every rim thats thicker at edge. I use large paint stir sticks/thin wood scraps in shop to hold the tire when moving my levers around FWIW, go to the post by "Poolside" on how to change a tire. I found it interesting. Also look at Stubby brand tire tools -I plan to buy them. In the UK having a town real close(part of the problem & the solution,huh?) is the reality-not so true elsewhere!