Topeak Mountain TT G Frame Pump TMTT-1GThe Topeak Mountain TT G Frame Pump has a 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. Compatible with Presta, Schrader, and Dunlop valve types. The barrel is aluminum and the thumb lock and handle are both polymer. This pump is capable of reaching 60 psi or 4 bar. Each stroke delivers 91cc of air. Weighs only 227g.883466017450