Airace Bike Aluminum Floor Tire Pump, Angled-Shape Barrel, Large Gauge, High Pressure 300 PSI, Air Bleeder - All-Fit Valve Head for Presta, Schrader and Air Suspension Shock Inflator Innovative floor pump for both air- suspension shock and tire. Dealers favorite. All-fits pump head for Schrader, Presta, Dunlop & E/V air valves. Patented pump head for both "shock & tire". Air-bleeder for 2-3 psi air-pressure control. Angled-Shape Alum barrel - thin top and fat bottom design adding additional stability. A large 2.5 in gauge reads up to 300 psi (21 bar).