The crank brothers sterling mini pump comes in four models of sterling pumps in two lengths short or long either with or without a gauge the crank brother pump is a polished cnc and laser etched aluminium outer body with a universal head giving you up to 100 psi on either schrader or presta valves without having to switch the head the high volume works perfectly for off road tires whereas the high pressure function for road tires a great action quick and easy pump weighing just 141g there