On ATVs and UTVs, these bead retainers are substantially large, as their tires are often run at very low air pressures (~5 psi (34 kPa)) and experience severe side loading forces from trail riding.
[2] Furthermore, due to their design (which uses a stand), shoe-and-lever bead breakers are quite large, and thus not a good portable solution for tire changes.
Some coordination and balance is required, as the user has to stand on the tire and use their body weight to operate the tool.
Ultimately, this type of bead breaker also struggles to work reliably on the stubborn tires of ATVs, 4x4 trucks, and tractors.
[citation needed] Lastly, the clamp-and-ram mechanism[3] is perhaps the most effective for breaking beads on ATVs, and other difficult-to-change tires, in addition to being fairly compact.
This style of tool has a pointed foot that sits on the sidewall and enters the space between the tire bead and lip of the rim, and a padded clamp that screws into position.