The Crank Brothers Gem- a lightweight dual-stage hand pump, featuring patented high-volume/high-pressure switch technology.
- Gem pumps feature a hybrid alloy/composite construction for low weight and high strength
- Convertible head for Presta or Schrader valves, and a patented high volume/high pressure air switch: use the high volume mode under 40 psi for quick inflation, then rotate the switch to the high pressure mode for easier pumping up to 100 psi
- Includes a bottle cage bracket mount for convenient on-bike storage