The Topeak Mini Dual is a powerful mini pump with dual action pumping to fill tires fast. Included side mount bracket holds the pump securely to the bottle mount while still allowing for a normal bottle cage to be used.High efficiency Dual Action pump with thumblock leverSoft Kraton and plastic handle for increased grip and comfort while pumpingIntegrated dust cap keeps head clean and ready to useHead: Presta/SchraderBottle cage boss side mount bracket includedBarrel: AluminumCapacity: 140 PSI/ 9.6 bar