What Our Gearhead® Experts Are Saying: "I keep these in my saddle bag because they’re quick, consistent, and work with the inflators I already use. For roadside or trail fixes, they get you back rolling in seconds without the effort of a mini pump." We don’t head out without a backup plan, and the CO2 Cartridge Non-Threaded Pack of 2 is an easy one to trust. Designed by Genuine Innovations, these 16-gram cartridges deliver fast, dependable inflation when a flat threatens to cut the ride short. Whether we’re topping off a high-pressure road tire or quickly reseating a mountain bike tire on the trail, these cartridges provide the punch needed to get moving again. Compact, lightweight, and compatible with a range of cupped inflators, they’re a simple essential for everyday rides and long-distance adventures alike.