The Motion Pro Bead Buddy is a handy item to have when you’re spooning on (or off) a tire from a rim.

The Bead Buddy clamps onto the metal rim and prevents the tire bead from creeping around the rim as you’re using tire irons on the opposite side of the rim.  Typically, as you work the tire onto (or off of) the rim, the tire bead wants to travel away from the irons, which means you’re chasing your tail as you work around the rim.
Clamp the BeadBuddy on the rim and the tire has nowhere to go.  This simple tool makes the tire-spooning process much easier.
Sold per each, so if you want 2 of them, order 2 units.