This durable pump with SwitchHitter head automatically adjusts for Schrader or Presta valves.
– 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: 120psi (8.3bar)
– Volume per stroke: 48.4cc