Designed to reach high pressure with minimal effort the specialized air tool hp floor pump requires 30 less effort to reach 100 psi in a 700c tire specialized air tool hp floor pump features 25 64mm oversized gauge steel base and aluminium barrel construction ergonomic wing handle 42 106cm hose 30 easier to pump high pressure auto selecting switchhitter ii technology max pressure 180psi 124bar volume per stroke 252cc