The Joe Blow Mountain Ex is a floor pump designed specifically for mountain bike and other high volume tyres. It features a large 3.5" base-mounted analog gauge, making it easy to read and accurately measure tyre pressure. This pump has a super-sized barrel, delivering nearly 50% more air per stroke compared to normal floor pumps. It can quickly inflate tires up to 60 psi / 4 bar. The SmartHead® pump head automatically adjusts to fit both Presta and Schrader valves, making it convenient and versatile. It is considered one of the best value floor pumps available on the market.Specifications:- Head: SmartHead® with extra-long hose- Barrel: Painted steel- Gauge: 60 psi / 4 bar, 3.5" base mount analog- Volume per stroke: 683 cc- Handle/Base: Engineering grade polymer- Size: 66 x 24.5 x 18 cm / 26" x 9.6" x 7.1"- Weight: 1.40 kg / 3.09 lb