The best CO₂ inflators for MTB and eMTB riding make a puncture stop quicker without making tyre pressure a guessing game. Our overall pick is the Muc-Off MTB kit: two 25g cartridges, a dual-valve head and a protective sleeve make a useful starting package for wide trail tyres.
The best CO₂ inflators shortlisted
Best overall: Muc-Off MTB CO₂ Inflator Kit — £19
Lezyne Trigger Speed Drive — £10.99 (RRP £24)
Birzman E-Grip 16g — £17.99
Topeak Nano Airbooster L 25g — £17.99 (RRP £24.99)
Giant Control Blast 1 — £18.89 (RRP £24.99)
Peaty’s Holeshot CO₂ Inflator Head — £18.99 (RRP £24.99)
Silca EOLO IV — £23 (RRP £26)
Birzman Roar 16g Set — £28.99
These eight researched picks compare valve compatibility, flow control and the supplied bundle. They have not been through a timed inflation test. Keep a manual mini pump available and pair the inflator with a suitable tubeless repair kit.
Best overall CO₂ inflators
Muc-Off MTB CO₂ Inflator Kit
The Muc-Off MTB kit is the most useful starting point here for riders building a puncture kit around wide tyres. It supplies two 25g cartridges, a dual-valve head and a neoprene sleeve, giving you a spare gas charge as well as the protection needed when the cylinder gets cold.
At Tredz
Muc-Off MTB CO₂ Inflator Kit; MTB kit; two 25g cartridges
+ Pros
- Two 25g cartridges suit a large-tyre repair kit
- Presta and Schrader head
- Protective sleeve included
− Cons
- Bulkier than a head-only setup
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Muc-Off MTB CO₂ Inflator Kit; MTB kit; two 25g cartridges · Verified totals first; unconfirmed offers follow.
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Prices and availability may change. Prices last checked: 2026-10-06 08:10 UTC. Prices are checked when this guide is updated. Confirm the current price and availability with the retailer.
Why it makes the shortlist
The release button provides control over the flow. Choose the MTB version: the road bundle looks similar but contains smaller 16g cartridges. You still need to stop at your own riding pressure and check it with a gauge; a cartridge’s size does not determine a universal safe pressure.
Key specifications
- Feature 1
- MTB bundle: two 25g cartridges
- Feature 2
- CNC-machined head
- Feature 3
- Push-button release; neoprene sleeve
- Offer variant
- MTB kit; two 25g cartridges
The best CO₂ inflators 2026
Lezyne Trigger Speed Drive
The Trigger Speed Drive suits riders who want a small push-on head and already use Presta valves. Its trigger controls the flow, while the aluminium body keeps the tool compact enough to disappear into a repair pouch.
At Tredz
Lezyne Trigger Speed Drive; Silver; Trigger Speed Drive head
+ Pros
- Simple push-on Presta connection
- Controlled trigger operation
− Cons
- Presta only
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Lezyne Trigger Speed Drive; Silver; Trigger Speed Drive head · Verified totals first; unconfirmed offers follow.
Prices and availability may change. Prices last checked: 2026-10-06 08:25 UTC. Prices are checked when this guide is updated. Confirm the current price and availability with the retailer.
Why it makes the shortlist
It fits Presta valves only and uses threaded cartridges. The selected silver listing does not establish an included gas charge, so budget for a compatible cartridge and hand protection rather than treating the low price as a complete refill kit.
Key specifications
- Valve
- Presta only
- Construction
- CNC-machined aluminium
- Cartridges
- Threaded; confirm supplied bundle
- Offer variant
- Silver; Trigger Speed Drive head
Birzman E-Grip 16g
Birzman pairs a small aluminium head with a 16g cartridge and an insulating grip. Pressing the head onto the valve releases the gas, making this a straightforward kit for a rider who wants a ready-to-carry inflator without a separate regulator dial.
+ Pros
- Presta and Schrader compatibility
- Cartridge and insulating grip included
− Cons
- 16g gas supply can limit a large-tyre refill
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Birzman E-Grip 16g; 16g cartridge kit · Verified totals first; unconfirmed offers follow.
Prices and availability may change. Prices last checked: 2026-10-06 08:25 UTC. Prices are checked when this guide is updated. Confirm the current price and availability with the retailer.
Why it makes the shortlist
The head works with Presta and Schrader valves. Its 16g cartridge is the main compromise for a wide trail tyre: it may not provide the pressure you need from completely flat. Treat it as a compact emergency option and keep a hand pump in the group.
Key specifications
- Feature 1
- 15g claimed head weight
- Feature 2
- Head: 42 × 23 × 14mm
- Feature 3
- Push-down flow control
- Offer variant
- 16g cartridge kit
Topeak Nano Airbooster L 25g
The Nano Airbooster L gives you a very small head without committing you to a 16g cartridge. This package includes a 25g charge and its protective shell, a more useful combination for many wide MTB tyres than the otherwise similar road-sized bundle.
At Tredz
Topeak Nano Airbooster L 25g; Black; L kit with 25g cartridge
+ Pros
- 25g cartridge and shell included
- Small head accepts both common valves
− Cons
- Tiny controls deserve practice with gloves
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Topeak Nano Airbooster L 25g; Black; L kit with 25g cartridge · Verified totals first; unconfirmed offers follow.
Prices and availability may change. Prices last checked: 2026-10-06 08:25 UTC. Prices are checked when this guide is updated. Confirm the current price and availability with the retailer.
Why it makes the shortlist
It accepts Presta and Schrader valves, while the head itself is quoted at just 12.6g. Remember that the complete package is considerably heavier than the bare-head figure. Its release method differs from some push-button inflators, so practise the manufacturer’s sequence at home before a cold, wet trailside repair.
Key specifications
- Feature 1
- Head: 27 × 28 × 15mm
- Feature 2
- 12.6g head; 124g listed complete kit
- Feature 3
- Threaded 16g/25g compatibility
- Offer variant
- Black; L kit with 25g cartridge
Giant Control Blast 1
Giant’s Control Blast 1 is an uncomplicated option for a shared repair kit: the push-on head covers both common valve types and the package includes one 16g cartridge. There is no display or gauge to learn, and no battery to remember to charge.
At Tredz
Giant Control Blast 1; Black; one 16g cartridge kit
+ Pros
- Fits Presta and Schrader
- One cartridge supplied
− Cons
- No gauge; 16g cartridge has limited capacity
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Giant Control Blast 1; Black; one 16g cartridge kit · Verified totals first; unconfirmed offers follow.
Prices and availability may change. Prices last checked: 2026-10-06 08:25 UTC. Prices are checked when this guide is updated. Confirm the current price and availability with the retailer.
Why it makes the shortlist
That simplicity also sets its limits. You will need a separate way to check pressure, and the small cartridge should not be treated as a guaranteed full refill for every 29in tyre. Riders starting from scratch with large tyres may find a 25g kit more useful.
Key specifications
- Feature 1
- Aluminium body
- Feature 2
- Push-on inflation
- Feature 3
- Includes one 16g cartridge
- Offer variant
- Black; one 16g cartridge kit
Peaty’s Holeshot CO₂ Inflator Head
Peaty’s straight head lets you approach the valve along its length rather than pressing sideways through an angled body. Push to release gas and lift off to stop. That layout is appealing on a muddy trail, where supporting the valve and getting the connection square matter more than a clever-looking mechanism.
At Tredz
Peaty’s Holeshot CO₂ Inflator Head; Black; head only
+ Pros
- Straight-on valve access
- Simple push-to-inflate operation
− Cons
- Head only; cartridges and sleeve cost extra
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Peaty’s Holeshot CO₂ Inflator Head; Black; head only · Verified totals first; unconfirmed offers follow.
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Prices and availability may change. Prices last checked: 2026-10-06 08:25 UTC. Prices are checked when this guide is updated. Confirm the current price and availability with the retailer.
Why it makes the shortlist
This is the head-only product. Add compatible cartridges and a protective sleeve before your first ride; the low price does not buy the complete MTB kit. It is also Presta-only, so choose a dual-valve alternative if your spare tube uses Schrader.
Key specifications
- Feature 1
- Presta only
- Feature 2
- 6061 aluminium
- Feature 3
- Cartridges and freeze sleeve sold separately
- Offer variant
- Black; head only
Silca EOLO IV
The EOLO IV is a compact regulator for riders who want a metal head and a distinct control dial. It can serve both Presta and Schrader valves, making it a useful part of a repair kit shared between different bikes.
At Balfe's Bikes
Silca EOLO IV; Green/Grey; regulator head
+ Pros
- All-metal construction
- Dial-controlled flow
- Presta and Schrader compatible
− Cons
- Head-only price excludes cartridges
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Silca EOLO IV; Green/Grey; regulator head · Verified totals first; unconfirmed offers follow.
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Prices and availability may change. Prices last checked: 2026-10-06 08:25 UTC. Prices are checked when this guide is updated. Confirm the current price and availability with the retailer.
Why it makes the shortlist
The price is for the head, so compare the total cost after adding cartridges and hand protection. Its appeal is the control layout and construction, rather than any extra inflation capacity: the amount of gas still comes from the cartridge. Carry a suitable sleeve and learn the connection method for your valve before relying on it.
Key specifications
- Feature 1
- Threaded cartridges
- Feature 2
- Turn-dial regulator
- Feature 3
- No built-in pressure gauge
- Offer variant
- Green/Grey; regulator head
Birzman Roar 16g Set
The Roar packages a push-operated head with three 16g cartridges and a protective PU grip. It is useful if you want spare charges ready for several rides, or a compact inflator that can work with both Presta and Schrader valves.
+ Pros
- Three cartridges supplied
- Presta and Schrader compatible
- Insulating PU grip
− Cons
- Each 16g charge can be limiting on large tyres
- More bulky to carry all three cartridges
Compare prices
Birzman Roar 16g Set; Black; three 16g cartridges and PU grip · Verified totals first; unconfirmed offers follow.
Prices and availability may change. Prices last checked: 2026-10-06 08:25 UTC. Prices are checked when this guide is updated. Confirm the current price and availability with the retailer.
Why it makes the shortlist
Those extra cartridges give you more attempts, but each remains a relatively small gas supply for a wide trail tyre. The Roar makes sense as a stocked repair-pouch option; riders routinely inflating large 29in tyres from flat should compare the 25g Muc-Off and Topeak kits first. Keep a pump available after the cartridges are spent.
Key specifications
- Operation
- Press-down Activate Valve Function
- Head material
- CNC-machined aluminium
- Head size
- 44 × 30 × 16mm
- Claimed head weight
- 22g
- Included
- Three 16g threaded cartridges; PU grip
- Offer variant
- Black; three 16g cartridges and PU grip
How to choose a CO₂ inflator for MTB tyres
Match the cartridge to tyre volume
A wide tyre needs more gas than a narrow one. Peaty’s gives an illustrative 29 × 2.4in figure of 21psi from a 16g cartridge and 34psi from a 25g cartridge. Those are manufacturer estimates, not pressure targets or promises for your wheel. Tyre volume, losses and temperature change the result.
A 25g cartridge provides more margin for many trail tyres, but you should release only enough to reach your chosen pressure. Our eMTB tyre-pressure guide explains how load, casing and terrain affect that choice.
Choose the right valve connection
Presta and Schrader are not interchangeable unless the head supports both. Peaty’s Holeshot and the Trigger Speed Drive here are Presta-only. Riders with Clik valves need a specifically compatible head or approved adaptor. A push-on connection also needs supporting squarely; do not use the cartridge as a lever against the valve.
Check your sealant before using CO₂
There is no universal compatibility rule. Peaty’s lists Holeshot Biofibre as CO₂-compatible, while Schwalbe advises against CO₂ with its puncture-protection fluid. Follow the instructions for the sealant actually in your tyre. Stan’s recommends replacing a CO₂ fill with ordinary air after the ride to help preserve latex sealant.
Practise the release mechanism
Some inflators release gas when pressed onto the valve; others use a separate dial or a cartridge-turning sequence. Read the instructions for the exact head, use its protective sleeve, and keep bare skin away from the rapidly cooling cartridge. Do not copy one brand’s operating sequence onto another.
CO₂ inflator questions
Can a CO₂ inflator seat a tubeless tyre?
It can sometimes supply the quick airflow needed, but it is not guaranteed to seat a loose bead. It also depends on sealant compatibility. For home setup, use an appropriate pump or tubeless inflator and stay within the tyre and rim makers’ pressure limits.
Is a 16g cartridge enough for an eMTB?
Sometimes, but the motor does not decide the answer. The tyre’s air volume and the pressure you need do. A large 29in or plus-size tyre can exhaust a 16g cartridge before reaching your normal pressure.
Do I still need a pump?
A pump gives you a backup after the cartridges are empty. That matters on remote rides, repeated punctures or an unsuccessful first attempt to seat a bead. CO₂ is a useful shortcut, not an unlimited air supply.
Our verdict
The Muc-Off MTB kit is the most complete starting point. Choose the Silca EOLO IV if you prefer a dial, or Peaty’s Holeshot if you want straight-on access to a Presta valve and already own cartridges. Whatever you buy, check sealant compatibility and practise using it before the ride that depends on it.