The greatest value HV hand pump equipped with the versatile ABS Flex Hose The pump barrel & shaft are made from lathe-turned aluminum with Composite Matrix handle & end caps. The HV design allows pump to reach riding pressure with 30% fewer strokes compared to conventional pumps. The overlapping handle & barrel with oversized piston & shaft are integrated into a compact design. Comes with a Composite Matrix frame pump mount.SMALL: 170mm 94g MEDIUM: 216mm 109g MAX: 90psi 6.2bar