8g Threaded CO2 Cartridges for Bike Tire Inflators

A threaded 8g cartridge is the version that screws in and seals rather than being punctured, and that makes it usable across more equipment than the unthreaded type. These cover bike tyre inflation on MTB and road bikes, and, because the fill is food-grade carbon dioxide, they also run sparkling water, soda and wine dispensers. Small and light enough to carry in a jersey pocket or a service kit, they seal tightly against a compatible inflator.

• Versatile 8g Threaded CO2 Cartridges: Perfect for a variety of uses including inflating bike tires, carbonating beverages, and culinary applications.
• Quick Inflation for Cyclists: Designed for cyclists, these CO2 cartridges provide fast, reliable tire inflation, making them essential for MTB and road bike emergencies.
• Food-Grade Safe for Beverage Carbonation: Ideal for sparkling water, soda, and wine dispensers, these cartridges ensure food-grade CO2 for safe, fresh, and fizzy drinks.
• Secure Threaded Connection: Threaded design ensures a tight, leak-free fit with compatible devices, making it safe and easy to use for various applications.
• Compact and Portable Design: Lightweight and easy to carry, these 8g cartridges are perfect for outdoor adventures, cycling trips, or kitchen use.

Why threaded rather than pierce-type

A threaded cartridge screws into its inflator and forms a seal that can be controlled and stopped partway through, unlike a pierce-type cartridge that empties in one go once punctured. That threaded fit is what lets the same 8g cartridge work across two very different jobs a bike tyre inflator and a beverage carbonator since both rely on a secure, resealable connection rather than a single burst of gas.

Using the same cartridge for tyres and drinks

For cycling, one cartridge is generally enough to bring a road or mountain bike tyre back up to a rideable pressure in an emergency. For drinks, because the fill is food-grade CO2, the same cartridge works in compatible sparkling water, soda or wine dispensing equipment worth keeping separate stock for each use even though the cartridge itself is identical, so a kitchen doesn't reach for a cartridge that has been carried around in a saddle bag.

Fitment and compatibility

Check the thread matches the specific inflator or dispenser before buying in bulk, since not every device on the market takes the same threaded fitting, whether it's being used for a bike tyre or a drinks machine.

Buying in bulk makes more sense where the cartridges cover both jobs at once a cycling team that also runs a drinks dispenser at its café base, for instance rather than where only one use applies.