Lezyne CNC Digital Drive Floor Pump Long travel piston with reduced barrel and base decreases the exertion required to reach optimal tire pressure ABS Flip-Thread Chuck threads securely to Presta and Schrader valves for a super-tight seal After inflation, thread the chuck into the pump base to keep the 43&quot; rubber hose in position Extra long, nylon-reinforced braided hose with aluminum connectors easily reach both Presta and Schrader valves