High Volume/High Pressure Air Switch
This Crank Brothers' Gem-S pump is constructed using a hybrid alloy/composite construction for low weight and high strength. It features a convertible head for Presta and 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. The Gem-S includes a bottle cage bracket mount for convenient on-bike storage.
This Crank Brothers' Gem-S pump is constructed using a hybrid alloy/composite construction for low weight and high strength. It features a convertible head for Presta and 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. The Gem-S includes a bottle cage bracket mount for convenient on-bike storage.
. Short dual piston pump with high pressure air switch
. Reversible internal head
. Length: 176mm
. Pressure: 100 psi / 7 bar
. Air switch: High volume / High pressure
. Weight: 128g