RedRock 20g Threaded CO2 Cartridges

RedRock 20g threaded CO2 cartridges with the standard 3/8"-24 UNF neck — high-volume gas for larger bike tires, in a threaded format that screws straight into your inflator head. Sold in 10-packs.

Works with:

• Threaded bike tire inflator heads (3/8"-24) — road, gravel, 29er MTB, plus, and fat-bike tires
• Other tools that take 20g threaded CO2

Rough fill: ~100 PSI in a road tire, ~40 PSI in an MTB tire (varies by tire volume and temperature).

Specs: 20 g CO2 · 3/8"-24 UNF threaded neck · clean-filled, no added oils · 10 cartridges per pack

Not sure your inflator takes threaded? Use the Cartridge Finder. Buying in volume? Request bulk pricing.