Glossary
Bead seat
The precision-machined surface on the wheel rim where the tire bead rests and seals. Corrosion, physical damage, or improper mounting technique at the bead seat causes bead leaks that appear as slow pressure loss at the tire-to-wheel interface. The bead seat surface must be clean and undamaged for a proper seal.
Real-World Use
A persistent slow leak on a drive tire is traced to pitting and corrosion on the bead seat of the wheel — cleaning and sealing the bead seat stops the leak without replacing the tire.
What to Pair It With
Read this term with the full tire sidewall, vehicle rating information, manufacturer documentation, and the actual condition of the tire.
This site is for general information only. It does not replace professional tire service, DOT compliance advice, tire manufacturer instructions, vehicle manufacturer recommendations, or fleet policy.