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Muc-Off · CO2 cartridge
Fast, simple CO₂ backup for bigger MTB tyres when you need air in a hurry.
$8.99
PriceIn stock, ready to ship
If you already run a threaded CO₂ inflator and want a proper MTB-sized refill, this 25g cartridge is the easy trailside fix. It’s built for quick inflation rather than lots of pumping, and Muc-Off rates it to bring a 29 x 2.4in MTB tyre up to 30psi from flat with the matching inflator kit.
Sold by Ashburton Cycles
Verified store
Price
$8.99
Cartridge size
25g
Use
MTB
Inflation
Up to 30psi from flat
The Muc-Off 25g CO₂ Cartridge - MTB Inflator Refill is the cartridge you grab when a mini pump feels too slow for a proper mountain bike tyre. With 25g of CO₂ inside, it’s sized for MTB use and gives you a fast way to get rolling again after a puncture or tube change.
For riders already using the Muc-Off setup, this refill is a straightforward match for the Muc-Off CO₂ Inflator Kit. Muc-Off rates it to inflate a 29 x 2.4in tyre to up to 30psi from flat, which makes it a practical choice for trail, enduro and general off-road bikes running higher-volume rubber.
If you’re choosing between cartridge sizes, the big advantage here is simple: more gas for larger tyres. That makes this 25g option better suited to mountain bike volumes than smaller road-style cartridges, especially when you want a quick burst of pressure without carrying a pump on every ride.
Ideal for mountain bikers who already carry a threaded CO₂ inflator and want a faster, more compact backup for higher-volume tyres.
25g MTB-sized cartridge
The larger 25g fill is aimed at mountain bike tyre volumes, where smaller road cartridges can come up short.
Fast puncture backup
A strong option for quick trailside inflation when you’ve repaired a puncture and just need to get moving again.
Up to 30psi from flat
Rated to bring a 29 x 2.4in MTB tyre up to 30psi from flat with the matching inflator kit.
Works with the Muc-Off CO₂ Inflator Kit
Designed as the refill for Muc-Off’s CO₂ inflator system, so it makes sense as a direct replacement cartridge.
Threaded cartridge format
A practical fit for riders already using threaded CO₂ inflator heads rather than proprietary systems.
Compact ride carry
Easy to stash in a saddle bag, hip pack, tool wrap or jersey pocket as emergency inflation backup.
No hand pumping
Lets you skip the effort of a mini pump when you want tyre pressure back quickly.
Every detail as listed by the manufacturer.
Muc-Off is a British cycling and powersports brand that began in 1991, founded by Rex and Marilyn Trimnell through X-Lite UK. The business grew from early bike hardware into cleaning and maintenance products, with the brand becoming widely recognised for its distinctive pink bike cleaner. Today Muc-Off’s range extends well beyond wash products into lubricants, tubeless and puncture-repair equipment, workshop items and rider accessories. The company highlights in-house product development and has built a strong profile across mountain biking, road cycling and motorsport.
Muc-Off · CO2 cartridge
Fast, simple CO₂ backup for bigger MTB tyres when you need air in a hurry.
$8.99
In stockSold by Ashburton Cycles
Cartridge size
25g
Use
MTB
Inflation
Up to 30psi from flat
Gas
25 grams Carbon Dioxide
If you already run a threaded CO₂ inflator and want a proper MTB-sized refill, this 25g cartridge is the easy trailside fix. It’s built for quick inflation rather than lots of pumping, and Muc-Off rates it to bring a 29 x 2.4in MTB tyre up to 30psi from flat with the matching inflator kit.
The Muc-Off 25g CO₂ Cartridge - MTB Inflator Refill is the cartridge you grab when a mini pump feels too slow for a proper mountain bike tyre. With 25g of CO₂ inside, it’s sized for MTB use and gives you a fast way to get rolling again after a puncture or tube change.
For riders already using the Muc-Off setup, this refill is a straightforward match for the Muc-Off CO₂ Inflator Kit. Muc-Off rates it to inflate a 29 x 2.4in tyre to up to 30psi from flat, which makes it a practical choice for trail, enduro and general off-road bikes running higher-volume rubber.
If you’re choosing between cartridge sizes, the big advantage here is simple: more gas for larger tyres. That makes this 25g option better suited to mountain bike volumes than smaller road-style cartridges, especially when you want a quick burst of pressure without carrying a pump on every ride.
Ideal for mountain bikers who already carry a threaded CO₂ inflator and want a faster, more compact backup for higher-volume tyres.
25g MTB-sized cartridge
The larger 25g fill is aimed at mountain bike tyre volumes, where smaller road cartridges can come up short.
Fast puncture backup
A strong option for quick trailside inflation when you’ve repaired a puncture and just need to get moving again.
Up to 30psi from flat
Rated to bring a 29 x 2.4in MTB tyre up to 30psi from flat with the matching inflator kit.
Works with the Muc-Off CO₂ Inflator Kit
Designed as the refill for Muc-Off’s CO₂ inflator system, so it makes sense as a direct replacement cartridge.
Threaded cartridge format
A practical fit for riders already using threaded CO₂ inflator heads rather than proprietary systems.
Compact ride carry
Easy to stash in a saddle bag, hip pack, tool wrap or jersey pocket as emergency inflation backup.
No hand pumping
Lets you skip the effort of a mini pump when you want tyre pressure back quickly.