The Bontrager Air Support Hybrid Bike Pump is designed specifically for the tyres on your commuter, cruiser, or town bike. The auto-select head uses a fold-out lever to lock securely to Schrader or Presta valves for quick & easy inflation up to 80 psi. Features Intended for low & mid-volume pavement tires Inflates tires to 80 psi (5.5bar) with little effort Auto-select head locks securely onto Presta or Schrader valves Fold-out lever securely locks pump head to valve Mounting bracket fits easily under bottle cage