This Beto alloy high pressure Shock pump can achieve pressures up to 400 P.S.I . If your bikes is equipped with air sprung suspension forks or rear shock you will need a pump to adjust the air pressure, a normal pump would not reach the high pressure required. It features a 1.5" gauge for accurate adjustments and a threaded bleed valve for pressure release. Its braided hose has a 2 stage non-leaking release system so the air stays inside the shock at the correct pressure.