The Crankbrothers Gem is a compact, lightweight dual-stage hand pump, featuring patented high-volume/high-pressure switch technology.
- It's made of hybrid alloy/composite construction for low weight and high strength.
- Features a 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.
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