The Topeak Mountain TT G Pump quickly fills large volume fat bike tyres and high pressure MTB tyres with it\'s large volume barrel. TwinTurbo technology uses both strokes to compress air to deliver high pressure output and saves time and effort. Integrated dust cap keeps pump head clean and thumb lock lever ensures air-tight seal.Topeak Mountain TT G Pump FeaturesHead: Presta / Schrader / Dunlop with integrated dust capBarrel: AluminumThumb Lock/Handle: PolymerCapacity: 60 psi / 4 bar, 1-1/8” AnalogVolume per Stroke: 91 ccAdded Features: Side mount bracketSize: 25.3 x 4.9 x 4 cm / 10” x 1.9” x 1.6”Weight: 227 g / 8 oz