You don't need to haul around a pump the length of your top tube to achieve usable psi numbers. The Lezyne Carbon Drive Pump dependably inflates your tire to 120psi and weighs less than many CO2 setups. Lezyne uses carbon fiber construction to pull this off. And, because its flex hose stores inside the pump handle and the pump handle overlaps the main shaft, the Carbon Drive is nice and compact. The Lezyne Carbon Drive can be used with either Schrader or Presta valves.