Push & Twist Compatible with both Presta and Schrader under the same simple steps. Insert, PUSH the collar down and TWIST to secure engagement, then pull back the collar to disengage. - No damage to the valve core. - No blow-offs under high pressure. - Pressure bleed button (CAD) for ultimate accuracy.
CAD-System The Controlled Air discharge (CAD system) is an air pressure release valve. When using a CAD equipped Birzman floor pump to inflate a Presta valve or Schrader valve, pressing the CAD button releases air from the tube to adjust tire pressure.
Push & twist
Compatible Valves: Car valve, French valve, Dunlop valve