The Gem is a compact high-volume/high-pressure pump that keeps the tires of your fleet topped up. Run it at high-volume to make initial inflation faster, then switch to high pressure to squeeze in those final PSI. Handy if you ride on 650b or 29er tires.
- Aluminum body
- This size has lots of volume for fast inflation
- Dual mode works with Presta or Schraeder valves