Crank Brothers Sterling-G Pump. Features: High polished CNC and laser etched aluminum outer body with inline pressure gauge Universal head instantly fits Schrader or Presta High/low volume function: 1 - 40 PSI high volume or 40 - 100 PSI high pressure settings Specifications: Length: 198mm Valve Compatibility: Presta & Schrader Max Pressure: 100 PSI Pump Type: High Volume Gauge: Analog Mount: Bottle Cage Bolt Mount Material: Aluminum Color: Silver Weight: 141g