Glossary

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Tire bead: On clincher tires, the metal, fiberglass, or plastic cable running along the edge of both sides of the tire, called the "bead." This is molded into the edges of the tire. The bead seals the tire against the rim once filled with air pressure, keeping the tire on the rim.
Tire lever: A tool for removing tubular tires from rims used to pry the tire over the edge of the rim.
Tire Liner -: A strip of rubber, plastic or cloth used in clincher type rims that protect the inner tube from being punctured by wear against the tops of the spoke nipples or the rim.
Truing a wheel: The process of making a wheel truly round by adjusting spoke tension.
Truing stand: A fixture for holding and measuring a wheel while it is being trued.
Tubular tire: A tubular tire takes the tube and the tire and combines them into one item that is then fit to the rim and glued in place. Tubulars don't have a bead. Instead, the edges of the tire are sewn together around the inner tube, and consequently, are also called “sew-ups.” These tires are fit to the wheel and attached by gluing the tire to the rim.