The Second Wind Road pump captures the best of both worlds by combining a CO2 inflator with a manual pump. It fits Presta valves and smartly controls the flow of CO2. You can also pump by hand and even while inflating tires with the CO2. Plus, the Second Wind is 7 inches long and made of carbon so it's incredibly light. It's also easily attached to your bike with the included mount. The pump accepts threaded CO2 cartridges and comes with one 16-gram cartridge.
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