Topeak Mountain TT Twin Turbo Frame Pump TMTT-1The Topeak Mountain TT Twin Turbo Frame Pump uses dual action pumping head to increase the efficiency of pumping while you are out on the trail. The large aluminum barrel allows a large amount of air to refill your regular or fat tires while you are on the trails. There is an integrated dust cap to prevent excesses wear. The thumb lock lever seals in air while you pump. The head adapts to Presta, Schrader, and Dunlop valves. With each stroke, up and down, 91cc of air is moved. This pump has a capacity of 120 PSI or 8 bar. There is a side mount bracket to bring this pump along. Weighs only 192g or 6.77oz. The dimensions are 22 x 5 x 4 cm / 8.7” x 2” x 1.6”.883466016286