Blackburn Mammoth 2Stage Anyvalve Pump CO2 inflators are great. They provide a quick and easy way to get you back in business when you've flatted deep into the trail. The one problem (a big one) with them is that they are finite. Yea you can carry multiple CO2 cartridges, but you still never know just how many flats you're going to get. Plus they're heavy. This is where a compact hand-pump such as the Mammoth Mammoth 2Stage Anyvalve Pump takes the cake. The Blackburn Mammoth 2Stage Anyvalve Pump is a minute, mountain bike specific big-volume pump for big volume tires, meaning it's specifically designed to push more air per stroke, saving valuable energy that might be needed for the ride. Though the 2Stage's system is optimized for mountain bikes, its 120psi max pressure makes it skinny tire worthy as well. Mammoth 2Stage Anyvalve Pump Features: Anyvalve Pump Head - Works great on Presta, Schrader and Dunlop valves. No leaking, no fuss, clean and simple. High Volume - This mini pump is specifically designed to push more air per stroke, saving energy that you might need for riding. Switchable high-volume and high-pressure modes - Offer faster inflation with less effort. TwistGrip - Locks pump head to valve making pumping secure and easy. Specifications: PSI: 120 psi max pressure Compatibility: Presta, Shrader and Dunlop valves Includes: Cage bottle mount Published Weight: 168g / 0.37lbs Silver: #7068163 Black: #7068162 | Blackburn Mammoth 2Stage Anyvalve Pump Silver