A floor pump specifically designed for mountain bike and other high volume tires featuring a large 3.5" easy-to-read base-mounted analog gauge for measuring tire pressure accurately. The super-sized barrel delivers nearly 50% more air per stroke than normal floor pumps and inflates up to 60 psi / 4 bar quickly. Equipped SmartHead® pump head automatically adjusts to fit either Presta or Schrader valves and is one of the best value floor pumps on the market.