RockShox simplifies your pack with this HP 2-Stage Air Pump. Throw it in your pack for every ride and you have both a shock and tire pump that boasts a 300psi capacity. The aluminum construction makes it super durable and the head fits both presta and Schrader valves. A large removable gauge is easy to read and the air-release button makes fine tuning pressure in shocks and tires a breeze. And it includes a mounting clip to mount to water bottle bosses.