DESCRIPTION: This unique mountain bike specific floor pump features a super-sized barrel that inflates tubes nearly 50% faster than normal floor pumps. It delivers the higher volume required for large off-road tires and a large 3.5" easy-to-read base-mounted analog gauge with air release button to help dial in the proper pressure. Equipped TwinHead® pump head fits either Presta, Schrader or Dunlop valves and is one of the best value floor pumps on the market. HEAD TwinHead®, Presta / Schrader / Dunlop valves with air release button & extra-long hose BARREL Painted steel GAUGE 60 psi / 4 bar, 3.5” base mount analog BASE Engineering grade polymer HANDLE Oversize dual tone VOLUME PER STROKE 722 cc SIZE 69 x 25 x 19 cm / 27.2" x 9.8" x 7.5" WEIGHT 1.59 kg / 3.51 lb ADDED FEATURES Ball / bladder heads LARGE 3.5” EASY-TO-READ ANALOG GAUGE TWINHEAD® WITH AIR RELEASE BUTTON Fits either Presta, Schrader or Dunlop valves SUPER-SIZED BARREL Inflates nearly 50% faster than normal floor pumps