The Pocket Drive HV is an incredibly compact and lightweight high-volume bike hand pump featuring impressive pumping efficiency for mountain bikes and other large tire applications. It’s constructed from durable CNC machined aluminum and has a knurled barrel for slip resistant operation. With its overlapping handle and integrated ABS Flex Hose, the Pocket Drive provides unparalleled performance for its size. The pump is Presta and Schrader valve compatible, and it’s completely rebuildable for long lasting service.