Crank Brothers

Co2 Cartridge - Threaded

What Our Gearhead® Experts Are Saying:

"I like that you can match your CO2 size to your ride—16g for my road bike, 20g for gravel, and 25g for big-volume trail tires. The inflator is easy to control and works every time without wasting gas or fumbling with setup."

Precision and portability define the Crankbrothers CO2 Inflator System. Designed to accommodate individual 16g, 20g, or 25g threaded cartridges—each sold separately—this compact inflator delivers fast, controlled air for everything from narrow road rubber to burly all-mountain setups.

The included Klic inflator head threads directly to Presta valves, creating a sealed interface for efficient inflation. Whether you're topping off mid-ride or reseating tubeless beads, the ergonomic head ensures a smooth, deliberate release of CO2. Riders running higher volume tires benefit from the 25g option, while 16g and 20g cartridges keep things lightweight and fast for gravel and road adventures.

Optimized for those who prefer simplicity without compromising function, this inflator kit is a minimalist’s essential. Whether you stash it in your jersey pocket or pair it with a saddle roll, it's one of those tools you'll always be glad you brought.