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 and higher pressure MTB tires with ease. TwinTurbo technology uses both strokes to compress air to deliver high pressure output and saves time and effort. Integrated dust cap keeps pump head clean and thumb lock lever ensures air-tight seal. Innovative TT TwinTurbo Technology lets you pull to compress a large volume of air and push to inflate with high pressure to save 50% time and 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