High Flow Valves - SetHigh Flow Valve Set $44 Standard presta valves are slow and clog up with sealant. These don't. 2. 5x the airflow, no clogging, and you can refill sealant right through the valve. Works with any tubeless setup. You can run these on any bike, tire insert or not! The black thread on caps even work with your current presta valves in case you prefer the color of valves you already have. Options listed with a valve length are full valve sets. The High Flow