Got the No Mar tire changer and associated stuff and things yesterday, mounted it to the concrete and today pulled the rear wheel off to put on new tire. Not quite as easyas their videos show. In fact not even close. It worked but not without a whole lot more muscle than it showed on their vid. Course they were using what appeared to be a very soft tire, I was dismounting and mounting Avon Azaro's. Might want to wait before buying one to see what they suggest, I did send them an email voicing my displeasure with their product. I guess if you use tires that are made out of pasta you might be ok. I was really excited to be getting this thing now I'm just kind of :huh: JB