Five airflow ports rather than one. The Stan's NoTubes Universal+ Valve Stems use a two-piece alloy base with four side ports and one bottom port, keeping air and sealant flowing even when tire inserts block the direct path. This matters if you're running CushCore or similar foam inserts that would otherwise suffocate a standard single-port valve during inflation and sealant injection. The multi-port design also speeds up initial tire seating since air moves into the tire faster than through a restricted single opening.

The valve body uses black-anodized alloy construction with an elliptical rubber stopper shaped to seal reliably against modern rim profiles. Where older valve designs assumed flat rim beds, the Universal+ accommodates the curved and asymmetrical shapes common on current wheels. A self-locking nut stays tight through vibration without backing loose, and the exclusive TAP CAP uses a twist-and-pull design that secures during rides but releases quickly for pump access.

The core itself is a traditional Presta design, which means compatibility with standard pumps, gauges, and pressure checkers without adapters or special fittings. Remove the core with any valve core tool to add sealant through the valve rather than breaking the tire bead. If you later want the anti-clog features and higher airflow of the Exo-Core system, these Universal+ bodies accept the Exo-Core Housing Kit as a direct upgrade without replacing the entire valve.... Read More