BBB Bicycle Core Cap Tubeless Valve Presta Valve No Adapter 40mm Copper Set, Compatible, Required, BTI-166

Easily upgrade your Presta (French) valves. This aluminum tubeless valve set features a highly durable, easy-to-handle core cap that eliminates the valve core. Air can be filled with the cap attached. No adapter required; compatible with Schrader (American valve) pumps. Air filling is smoother with 300% more airflow than conventional models. Air can be easily bled with the push of a button.