RE: HELP!! Mounting tires - share your tricks/tips
They are just like beadlocks on a real car. The clamp around the bead of the tire. On real cars they are mostly used when the power of the car and the traction of the tire are enough to make the tires spin on the rims, but in RC they are used mostly for easy tire switching. They tend to be a bit pricey for decent ones and are also pretty havey, and rotating mass at the wheels is not ideal if you are a performance nut. But they have their purpose and work well for it.