CRANK BROTHERS HAND PUMP GEM

Lightweight and compact portable pump with patented switch technology for transitioning between high volume/high pressure modes.

CRANK BROTHERS HAND PUMP GEM MAIN FEATURES:

• The Gem pumps feature a hybrid alloy/composite construction to reduce weight and improve durability.
• Our lightweight Gem pumps also come with a convertible head for Presta or Schrader valves and a patented switch for toggling between high volume/high pressure pumping: use the high volume mode under 40 psi for fast inflation, then rotate the switch to high pressure mode to pump up to 100 psi more easily.
• All Gem pumps include a bottle cage mount for convenient attachment to your bike.