Mountain TT G Twin Turbo with large integrated 1-1/8” diameter easy-to-read analog gauge pump fills both large volume fat bike tires & higher pressure MTB tires with ease. Twin Turbo technology uses both strokes to compress air to deliver high pressure output & saves your valuable time & effort. Integrated dust cap keeps pump head clean & thumb lock lever ensures air-tight seal. Innovative TT Twin Turbo Technology lets you pull to compress a large volume of air & push to inflate with high pressure to save 50% time & effort. Large integrated 1-1/8” diameter easy-to-read analog gauge Side mount bracket 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 91 cc ADDED FEATURES Side mount bracket SIZE 25.3 x 4.9 x 4 cm / 10” x 1.9” x 1.6” WEIGHT 227 g / 8 oz