These are what I ended up with after much trial and error, they are great! I bought a couple of 24" cast steel ones from Harbor freight, but their rough casting was not going to be kind to the aluminum rims. The BikeMaster ones in the link have a real hard chrome and are nice and slippery to the rims. I used them (bought a pair) to change both tires and could not be happier. They may be a little pricey, but worth it. -Joel