This durable frame pump with SwitchHitter head automatically adjusts for Schrader or Presta valve tubes. Features: SwitchHitter head works on Schrader or Presta valves with no disassembly. Plunger locks to body chamber with a simple twist for secure storage. Water bottle boss mount included. Max pressure: 120 PSI (8.3bar) Volume per stroke: 48.4cc Specifications: Length: - Valve Compatibility: Presta & Schrader Max Pressure: 120 PSI Pump Type: High Pressure Gauge: - Mount: Bottle Cage Bolt Mount Material: Plastic Color: Black Weight: -