CO2 Flex Hose (CFH) High-pressure steel braided hose with Presta/Schrader Flip-Chuck works with pump & threaded CO2 cartridges. Pump & CO2 Inflator Combo Lezyne quality pump combined with the convenience of a CO2 inflation system. All-in-One Mount Stylish CNC-machined aluminum bracket secures pump and one 16g CO2 cartridge to bike frame. CNC Precision 100% CNC-machined aluminum parts for precise construction. Frame Pump Replacement Inflates to riding pressure with 30% fewer strokes compared to conventional hand pumps. Twist-Puncture Operation Simple & efficient twist-puncture operation compatible with all threaded CO2 cartridges