Bead Expander

A bead expander is a device used during the mounting of tubeless tires to ensure a proper seal and prevent inflation air from escaping. This tool helps to bring the tire beads into contact with the tapered bead seat area of the rim. By expanding the beads and pushing them against the rim, the bead expander ensures a secure fit, which is essential for maintaining air pressure and the overall performance of the tire. Bead expanders are commonly used in automotive service shops and are especially helpful when dealing with tires that have stiff sidewalls or when the beads do not easily seat on the rim.