More Volume. More Capacity. For Bigger Tyres.

The JetBlack 25g Threaded CO2 Cartridge delivers the same instant inflation as the 16g, with the extra capacity needed for larger volume tyres. Where a 16g cartridge is ideal for road tyres, the 25g is the right choice for gravel, MTB, 29er, or plus tyres that need more CO2 to reach a rideable pressure. Threaded format, compatible with all standard threaded inflators including the JetBlack Micro CO2 Inflator.

Single-use CO2 cartridge. Best used as an emergency roadside fix — after inflation, top up with regular air as soon as possible. CO2 permeates through inner tubes and tubeless sealant faster than air. Threaded compatibility — works with JetBlack Micro CO2 Inflator (JBP-MICROJET) and most third-party threaded CO2 heads.

25g
CO2 Volume
Threaded
Compatible
Presta &
Schrader Valves
Gravel / MTB
Tyre Size
Extra Capacity for Bigger Tyres

25g delivers full inflation for gravel, MTB, 29er, and plus tyres that need more CO2 than a 16g cartridge can provide.

Also Works on Road Tyres

Can fully inflate a road tyre and has capacity to spare — you can partially inflate if you want to control the final pressure.

Threaded Compatibility

Standard threaded format — compatible with JetBlack Micro CO2 Inflator (JBP-MICROJET) and most third-party threaded heads.

Tubed & Tubeless

Suitable for both tubed and tubeless tyre setups across all disciplines.

Saddle Bag Ready

Compact, light, and easy to carry. Slightly larger than the 16g but still fits any saddle bag alongside your repair kit.

JetBlack Quality

JetBlack is an Australian cycling brand producing quality training and maintenance products trusted by riders at all levels.

Specification Value
CO2 Volume 25g
Thread Type Threaded (standard)
Valve Compatibility Presta and Schrader (via compatible inflator)
Tyre Compatibility Tubed and tubeless
Best For Gravel, MTB, 29er, and plus tyres
Compatible Inflator JetBlack Micro CO2 Inflator (JBP-MICROJET)
SKU JBP-CO2-25G

(JBP-CO2-25G)

  • 25g Threaded CO2 Cartridge: Greater capacity than the 16g — designed for larger volume gravel, MTB, 29er, and plus tyres.
  • Threaded Compatibility: Works with JetBlack Micro CO2 Inflator (JBP-MICROJET) and most third-party threaded CO2 heads.
  • Instant Inflation: Fully inflates a gravel or MTB tyre in seconds — no effort required.
  • Tubed & Tubeless: Compatible with both tubed and tubeless tyre setups.
  • Presta & Schrader Compatible: Works with both valve types via a compatible inflator head.
  • Also Suitable for Road: Has capacity to spare for road tyres — allows controlled partial inflation.
  • Emergency Use: Top up with regular air when possible after use — CO2 permeates through rubber faster than air.
  • Saddle Bag Friendly: Compact enough to carry alongside your repair kit on any ride.
Specification Value
CO2 Volume 25g
Thread Type Threaded
Valve Compatibility Presta and Schrader (via inflator)
Best For Gravel, MTB, 29er, plus tyres
Compatible With JBP-MICROJET and threaded CO2 inflators
SKU JBP-CO2-25G
Brand JetBlack
Shipping Weight 0.0500kg

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