Custom air pressure gauge attaches to pumps with threaded hose connections (M and L length only). Equipped with ABS Flip-Thread Chuck, compatible with Presta and Schrader valves. ABS air bleed to prevent valcore removal or release pressure in Schrader valve tubes. Flex Hose with integrated pressure gauge. Hand Pump Gauge. A replacement ABS Flex Hose with an integrated, in-line psi/bar pressure gauge with easy to read markings. It is stored inside the handle of Flex Hose equipped Lezyne hand pumps (Medium and Large sizes only), and is equipped with the ABS Flip Thread Chuck which threads onto Presta and Schrader valves for a secure connection.