A great value HV hand pump equipped with the versatile Flex Hose (non-ABS). The pump barrel and shaft are made of aluminum with a Composite Matrix handle and end caps. The HP pump design easily inflates tires to riding pressure with fewer strokes. The overlapping handle and barrel are integrated into a compact design. It comes with a Composite Matrix frame mount. HIGH VOLUME 90 PSI - Compact pump with overlapping handle, designed for high volume tires AIR BLEED SYSTEM - The ABS button releases the pressure from the pump hose, simplifying removal of the flip-thread chuck and eliminating the risk of the valves unscrewing the valve core as well. TWIN CHUCK - The HP Drive hand pump comes with the patented ABS Flip-Thread Chuck, which is compatible with Presta and Schrader valves. The twin chuck is easy to fit and remove. ALUMINUM CONSTRUCTION - Aluminium is a robust and lightweight material. Therefore, it is used by Lezyne for various precise pump parts, creating elegant and functional products. COMPOSITE MATRIX - Composite Matrix is a high-strength fiber reinforced material used to make mold injected components, creating pro level cycling products.​​