The Crank Brothers Gem S Minipumpe bar / 115 psi designed for up to 8, can be used for Schrader and Presta valves us is high quality 6061 aluminum. Double Shot system: double air volume per stroke, dual-valve-head, two-speed operation: Level 1 for large volumes of air in a short time / level 2 for high pressure up to 8 bar, pump housing made of 6061 aluminum "Gem S", silver, 176mm, 128g or "Gem S" red, 176mm, 128g

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