Designed for Fat and Semi Fat tire bikes, the Big Bore packs massive volume per stroke and a unique head that still works with winter gloves on - Oversized press-on Schrader and Presta head won't accidentally remove valve cores and can be easily used with thick gloves. - Flexible hose attachment allows for aggressive pumping without fear of damaging valve stems. - Inverted barrel design allows for high volume in a compact size. - Coarse machined aluminum barrel for extra grip. - Water bottle boss mount with elastomer band included. - Max pressure: 50psi (3.5bar) - Volume per stroke: 90cc

Thanks to its smaller-diameter barrel, with Specialized's Air Tool HP Floor Pump it's easier than ever to inflate high-pressure tires. It also features Specialized's SwitchHitter head that works with Presta and Schrader valves, quality steel construction for excellent durability, and a three-sided base for superb stability. Plus, you'll love the comfortable, wide handle, easy-to-read oversize gauge and the nice, long hose.

Specialized's Air Tool Comp Floor Pump boasts a steel body, rugged internals, a long hose, sturdy handle and a three-sided base for easy pumping and excellent durability. You also get Specialized's great SwitchHitter head that automatically adapts to fit Presta and Schrader valves, and an easy-to-read, oversize gauge to make finding the right pressure a breeze.