More air volume for MTB rider, with a built-in gauge for extra precision.This large aluminium barrel version pumps a lot more air volume for MTB riders, with an analogue gauge to provide the perfect inflation every time. Dual-Action (DA) doubles volume with each stroke to inflates your tyres fast, whilst the integrated dust cap keeps the pump head clean and the thumb lock lever ensures an air-tight seal. Large integrated 1-1/8” diameter easy-to-read analogue gaugeDual-Action Technology Delivers air on the push and pull stroke to inflate tires 2X faster.Side mount bracket included HEAD: Presta / Schrader / Dunlop with integrated dust cap BARREL: Aluminum THUMB LOCK / HANDLE: Polymer CAPACITY: 60 psi / 4 bar, 1-1/8” Analog VOLUME PER STROKE: 82 cc (pull + push) SIZE: 22.3 x 4.6 x 3.4 cm / 8.8” x 1.8” x 1.3” WEIGHT: 152 g / 5.36 oz