The Mountain 2Stage Digital shock pump features an innovative 2Stage pressure selector that lets you choose high pressure for filling suspension forks and shock units or high volume for inflating mountain bike tires. Integrated easy-to-read digital gauge provides accurate pressure readings up to 300psi / 20. 7bar. A Pressure-Rite connector accepts Presta and Schrader valves while the flexible hose takes stress off valve stems when inflating tires. The air release button makes setting proper pressure quick and easy.