The Topeak Joe Blow MTB X Floor Pump with Gauge Pressure Indicator Dial ?is a unique mountain bike specific floor pump. It features a super-sized barrel that inflates tubes nearly 50% faster than normal floor pumps. Topeak Joe Blow MTB X Floor Pump Features Oversized steel barrel and steel base Oversized, padded handle provides a comfortable grip TwinHead DX5 for Presta, Schrader and Dunlop valves 60psi gauge with pressure indicator dial Includes ball and air bladder needles