This large-volume frame pump with Switch Hitter II head promises all the performance & durability needed for the most epic mountain rides.> Aluminium shaft handle & chamber for durable performance> Largest volume body for pushing maximum air> Switch Hitter II head works on all valves with no disassembly> Plunger locks to body chamber with a simple twist for secure storage> Storage chamber in the handle: glueless patches included> Water bottle boss mount included