Topeak Mountain DA G Frame Pump TMDA-1GThe Topeak Mountain DA G Frame Pump is a larger barrel version pumps more air volume for MTB riders. Large integrated 1-1/8” diameter easy-to-read analog gauge provides the perfect inflation every time. Dual-Action (DA) doubles volume with each stroke and inflates tires up to pressure fast. Integrated dust cap keeps pump head clean and thumb lock lever insures air-tight seal. Compatible with Presta, Schrader, and Dunlop valve types. Volume per Stroke 82 cc per pull and push. Weighs only 152g.883466017443