LEZYNE ABS Standard Flip-Thread Chuck HP Pump Head (1-FLIP-STD-V312)

Air Bleed System (ABS) in-line valve releases back pressure for easy chuck removal; Prevents unscrewing removable Presta valve cores during disconnection; Allows precise air release to adjust tire pressure on Schrader valves; Secure threaded screw-on design ensures airtight connection; Compatible with both Presta and Schrder valves