Stan's further establishes its commitment to improving the ride for cyclists everywhere with the new Universal+ tubeless valve. The Universal+ tubeless valve features a black-anodized two-piece alloy base with a traditional Presta valve core. Like its Exo-Core tubeless valve sibling the Universal+ features five airflow holes (four on the sides one on the bottom) to ensure free flow of air and sealant even with tire inserts while a uniquely shaped rubber stopper guarantees a reliable seal on modern rim shapes. The same TAP cap and secure-lock nut featured on the Exo-Core tubeless valve provides the finishing touches here on the Universal+.TAP "Twist And Pull" Cap stays securely fastened yet quickly and easily slides on and off the valveReliable seal on modern rim shapes and is compatible with tire insertsAlloy bodyUniversal + valve can easily be upgraded by simply removing the Presta core and installing an Exo-Core housing kit (sold separately)