Heavy-Duty 38g CO2 Cylinder for Mountain Bike Inflation
The 38g CO2 cartridge is a high-pressure inflation solution designed for cyclists who need instant tire recovery during roadside emergencies. Built from precision-drawn steel and filled using strict quality control protocols, each cartridge provides fast, regulated output that restores tire pressure in seconds. Its compact size makes it ideal for long-distance riders who demand a reliable supply of compressed gas without adding unnecessary weight to their toolkit.
Engineered for compatibility with standard threaded bike inflators, the 38g cartridge offers higher capacity than common 16g or 25g variants—giving riders the pressure needed for larger gravel tires or high-volume MTB setups. Whether used for single inflation of wide off-road tires or multiple inflations of slimmer road tires, the 38g format offers dependable power and consistent performance throughout the entire discharge.
Key Features
High-Pressure Inflation Power
Delivers rapid tire restoration within seconds, ideal for emergency roadside repairs and long-distance cycling.
Clean, Precision-Cut Threading
Standard 3/8-24UNF threads ensure smooth connection with most threaded bike inflators on the market.
Stable Gas Output
The controlled internal pressure provides consistent gas release, preventing sudden bursts or uneven flow.
Durable Steel Construction
Made from cold-drawn steel for added thickness, improved strength, and long-term stability.
Corrosion-Resistant Finish
Anti-rust surface treatment protects cartridges during storage, transport, and outdoor usage.
Safe for High-Volume Tires
Suitable for gravel, touring, MTB, fat bikes, and high-pressure road setups.
Applications
Road Bikes: Quick emergency inflations during long rides.
Gravel & Adventure Cycling: Ideal for mid-volume tire formats requiring extra gas.
MTB & Trail Riding: Supports larger tire cavities with stable, controlled inflation.
Bike Repair Shops: Reliable cartridge option for workshop services or customer repair kits.
Cycling Brands: Perfect for bundling with branded inflators or repair kits.
OEM Customization
We support extensive OEM services for brands and bike accessory manufacturers:
Private label printing / laser marking
Custom paint colors and surface finishes
Carton packaging with brand design
Custom bundle sets with inflators
Controlled filling based on your pressure requirement
Bulk order industrial-grade packaging
Our facility follows strict QC workflows: weight check, sealing inspection, gas purity verification, and performance testing.

38g CO₂ Cartridge – Technical Specifications
| Parameter | Value |
|---|---|
| Gas Type | CO₂ |
| Net Weight | 38g |
| Thread | 3/8-24UNF threaded |
| Material | High-strength steel |
| Fill Method | Liquid CO₂ under high pressure |
| Compatibility | Most threaded bike inflators |
| Finish | Anti-corrosion coating |

Connect with our team for 38g pricing and optimize your performance-demanding devices.
Customer Reviews
Frequently Asked Questions.
Yes, it uses a standard 3/8-24UNF thread compatible with most threaded inflators.
Yes. The 38g size is ideal for mid-volume and larger tire formats.
We provide custom branding, laser marking, packaging, and bulk manufacturing options.
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