A few years back I busted apart 20+ 20" wheels. Doing a few is okay, but I hurt for days.
Our local place charges $16. I have more time than money so I did it myself.
The ring needs to be beaten down a good inch or so, there are two types of solid lock rings. One has the indent for the tire spoon that you can see, another has it under the tire rim edge where the ring seats. The second type isn't visible until you beat down the ring.
Once the ring is beaten down a bit, you will notice two areas on the ring eaxctly opposite of each other, at the point it seats against the rim, where the flange is non existant. This is the area where the ring will slide up and over the rim when removing.
It's not to complicated, but it takes a strong arm some tire spoons and a BFH to do it. The bead on the rim is the hardest part to break on very old, stubborn tires. I stuck one under a wood splitter once and couldn't brake it, another person I know put the tires on the truck and drove it without breaking the bead. Sometimes you have to resort to a grinder to cut the steel cables hich results in a hell of a mess and a lot of smoke.
Jeff
