Silca Eolo IV

$26.00

In Stock

The Silca Eolo IV is a compact, durable threaded CO2 inflator with an aluminum body, rubber insulators and a spring‑regulated valve for precise, low‑effort inflation of Presta or Schrader valves.

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Available Options

Option	Price	Availability
Silca, Eolo IV, CO2 Inflator, Threaded, Presta, Schrader, Black Red	$26.00	In Stock
Silca, Eolo IV, CO2 Inflator, Threaded, Presta, Schrader, Green/Grey	$26.00	In Stock

Product Details

Overview & Technology

Built for fast, controlled roadside inflation. The Eolo IV pairs a lightweight aluminum body with rubber insulators to reduce chill transfer and improve grip when handling cold cartridges. Its compact profile and minimal weight make it easy to stash in a jersey pocket, saddle bag or multi‑tool roll. Precision control comes from a spring‑regulated airflow and a light‑action spring that lets you meter gas while avoiding sudden bursts. The hardened tool‑steel puncture pin pierces threaded cartridges cleanly for consistent performance, and the head converts to work as a press‑on Presta or a thread‑on Schrader for instant compatibility with most valve types.

Key Features

Materials and construction designed to last. The main body is machined from aluminum for a high strength‑to‑weight ratio, while rubber insulators protect your hands and reduce metal‑to‑metal contact with cold cartridges. Exposed wear points such as the puncture pin are made from hardened tool steel to resist deformation and extend service life. • Spring‑regulated airflow for controlled inflation • Light‑action spring reduces hand effort • Hardened tool‑steel puncture pin for reliable activation • Press‑on Presta and thread‑on Schrader compatibility • Threaded cartridge interface for standard threaded CO2 canisters

Fit & Compatibility

Works with standard threaded CO2 cartridges — simply screw on a threaded cartridge, puncture with the integrated pin, and control flow with the spring‑regulated valve. The head supports press‑on operation for Presta valves and can be threaded onto Schrader valves for a secure connection. Real‑world compatibility: the Eolo IV is engineered to fit the wide majority of threaded 16g–25g bottles commonly used by road and gravel riders. It's compact enough for lightweight setups but robust enough to handle frequent use; always verify cartridge threading and valve type before a ride.

Who It's For

The Eolo IV is aimed at road and gravel riders who value speed, reliability and precise control during roadside repairs. If you carry CO2 for quick pit‑stop top‑ups between stages or to get a wheel back on the road and rolling fast, the Eolo IV gives repeatable performance without bulk. It's also a great choice for club racers, sportive riders and gravel grinders who prefer a durable, metal construction over lightweight plastics, and anyone who wants simple Presta/Schrader versatility in a compact package.

Key Features

✓ Machined aluminum body with rubber insulators for reduced cold transfer
✓ Spring‑regulated airflow and light‑action spring for precise control
✓ Hardened tool‑steel puncture pin for consistent cartridge activation
✓ Press‑on Presta head with thread‑on Schrader compatibility
✓ Accepts standard threaded CO2 cartridges for easy replacement
✓ Compact, lightweight design ideal for jersey pockets or saddle bags
✓ Available in Red/Black and Green/Grey finishes

Specifications

Cartridge Type	Threaded
Primary Color	Red
CO2 Actuation	No
Valve	Presta, Schrader

Product Identifiers

Vendor Item #	AM-AC-037-ASY-0100
UPC	810093160587

Frequently Asked Questions

Which CO2 cartridges work with the Eolo IV?

The Eolo IV accepts standard threaded CO2 cartridges. Most common threaded sizes used by cyclists (typically 16g–25g) will screw on and activate correctly. Always confirm cartridge threading and manufacturer compatibility before purchase.

Can I control the inflation rate?

Yes. The Eolo IV uses a spring‑regulated valve and a light‑action spring to let you meter gas flow. While it doesn't have a separate push‑button actuator, you can modulate pressure by how you operate the head and release the spring.

Is this safe to use with tubeless tyres?

CO2 can be used to top up tubeless tyres and in some cases seat a bead, but results vary by tyre/rim combo. CO2 cools rapidly and may not provide the sustained high volume some tubeless setups require — carry a mini pump or track pump if you need to fully seat a stubborn tyre.

How many inflations will one cartridge provide?

Inflation volume depends on tyre size and cartridge capacity. A single 16g cartridge will typically inflate a narrower 700x23–28c road tyre to a rideable pressure; wider gravel tyres will require larger cartridges (e.g., 25g) or multiple cartridges. Plan carriage based on tyre volumes you ride.

How do I maintain the inflator?

Keep the head and threads clean and dry, avoid cross‑threading cartridges, and inspect the puncture pin for wear if you use it heavily. Store the unit dry and check rubber insulators for cracking; replacement parts may be available through Silca or Scenders support.

What does 'CO2 actuation: No' mean?

That spec indicates the unit does not include an internal on/off CO2 drive mechanism or separate button. The Eolo IV relies on its spring‑regulated valve for control rather than a dedicated actuator, making it lighter and simpler to operate.

Buying Guide

When choosing a CO2 inflator, prioritize compatibility (threaded vs non‑threaded cartridges), control, construction materials and weight. Threaded inflators like the Eolo IV offer secure cartridge attachment and tend to be more reliable for repeated use than non‑threaded options. Look for durable materials (machined aluminum, hardened steel components) and a valve design that lets you control flow — a spring‑regulated head gives good metering without extra bulk. Match cartridge size to your tyre volume and carry spares for longer rides or wider tyres.

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