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SILCA EOLO IV CO2 Inflator Head

The SILCA EOLO IV is the latest evolution of the iconic EOLO, the world’s first CO2 regulator head developed in 1982. Featuring a new easy-to-grip turn dial, it gives you precise control over CO2 flow, allowing you to inflate tyres safely and efficiently.

Keep the flow closed until the head is fully threaded onto the valve, then open gradually. You can even stem the flow once the inner tube is pressurized or a tubeless tyre is seated. The threaded neck attaches directly to a CO2 cartridge, eliminating the need for a bulky regulator body—compact enough to slip into a jersey pocket for emergencies.

Compatible with both Presta and Schrader valves, the EOLO IV works with a wide variety of bikes. Crafted from durable all-metal construction, with no plastic parts to break or erode, it ensures reliable, portable inflation for fast roadside repairs.

Key features:

• Light, head-only CO2 inflator

• Ultra-precise turn dial for controlled CO2 flow

• Minimizes CO2 waste, getting you home safely

• Simple operation, even with gloved hands

• Compatible with Presta and Schrader valves

• Works with threaded CO2 cartridges only

• Durable all-metal construction