Crankbrothers GEM Hand Pump Compact and Lightweight - Black Category_Tubeless 50mm length Size: SBontrager alloy

50mm length Size: SBontrager alloy

1/2"x11/128" | Compatibility: SHIMANO

One removable internal compartment means a better organization

Sensor device : ECG

Crankbrothers GEM Hand Pump Compact and Lightweight - Black Category_Tubeless 50mm length Size: SBontrager alloyGEM The compact, 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 Our lightweight Gem pumps also feature 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