Inflation chart for different tire sizes and CO2 sizes

Demystify how much you can inflate that big tire of yours

Tech
MSW offers a bunch of different CO2 cartridge sizes.

MSW offers a bunch of different CO2 cartridge sizes.

CO2 cartridges are handy as they can get you back pedaling in no time after that unfortunate flat tire. And they can even seal that tubeless setup out on the trail. But how much can they really inflate today’s big new tires?

Small 16 gram CO2 cartridges used to suffice for road tires and 26ers but as we moved on to 29ers and bigger tires, we found that 25 gram cartridges were more appropriate for mtb tires.

But now we have fat tires up to 5.0 inches in width and Plus tires up to 3.0 inches. Luckily, these bigger tire sizes are ideal with lower pressure than their skinnier counterparts. In general, with our tubeless setups and knowledge of grip and rolling resistance, many of us have moved to running lower pressure more than a decade ago.

But how much can that CO2 cartridge really inflate your tire? What CO2 size do you need to carry to get you back on the trail without compromise?

This chart details how much each CO2 cartridge size can inflate the different tire sizes available.

This chart details how much each CO2 cartridge size can inflate the different tire sizes available.

CO2 Cartridges

Threaded CO2 cartridges are available in 18, 25 or 38 gram sizes. MSW CO2 Cartridges fit all MSW inflator heads as well as the competitors’ inflators.

  • 18 gram threaded cartridges available as a 3-pack
  • 25 gram threaded cartriges available as a 2-pack
  • 38 gram threaded cartridges are sold individually
MSW's CO2 head is so compact, they even turned it into a keychain for a dealer event.

MSW’s CO2 head is so compact, they even turned it into a keychain for a dealer event.

INF-200 AirStream Inflator Head

The AirStream is a lightweight, minimalist compressed air inflator head for your tool kit or jersey pocket.

  • Simple operation: twist on and off to control air flow
  • One side threaded for cartridge storage
  • Rubber plug prevents grit and grime from contaminating the system

For more information visit mswbike.com.

Photo Thumbnails (click to enlarge)

About the author: Francis Cebedo

The founder of mtbr and roadbikereview, Francis Cebedo believes that every cyclist has a lot to teach and a lot to learn. "Our websites are communal hubs for sharing cycling experiences, trading adventure stories, and passing along product information and opinions." Francis' favorite bike is the last bike he rode, whether it's a dirt jumper, singlespeed, trail bike, lugged commuter or ultralight carbon road steed. Indeed, Francis loves cycling in all its forms and is happiest when infecting others with that same passion. Francis also believes that IPA will save America.


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