The fattest version in the RaceRocket series. An all aluminium mountain pump gets big volume tyres up to pressure fast. With an increased barrel diameter to push more air per stroke up to 90psi. Extendable hose takes the stress off the valve stem. Small size fits easily in a pocketSmarthead Threadlock with integral dust capIntegrated compartment for Schrader valve adapterCNC aluminium barrel and handleSide mount bracket (or optional centre mount bracket)19.6x3.7x3.3cm114g.