Lezyne sport floor drive abs2 track pumpthe lezyne cnc floor drive track pump is a high pressure floor pump with an oversized 25 inch precision gauge lezynes new abs 2 chuck with bleed valve seals quickly and accurately to both presta and schrader valves giving the exact amount of required pressurea steel barrel and piston moulded composite matrix base and an extra long high strength hose with composite matrix couplers make this a durable pump designed for performance features abs 2 chu