SILCA built the first regulated CO2 inflator in 1982, and the EOLO IV continues that line. Thread on a cartridge, press it onto the valve and use the dial to control exactly how fast gas flows into the tyre.

Highlights

  • Dial design with spring-regulated flow control
  • No plastic parts: 6063 aluminium and stainless steel
  • Hardened tool steel puncture pin, more than twice as hard as traditional pins
  • Rubber insulators on the body
  • Presses onto Presta, threads onto Schrader

Controlled roadside inflation

Regulating the flow is what made CO2 practical at the roadside. The EOLO IV's light-action spring and dial give fine control, so you can seat the tyre and top up without dumping a whole cartridge at once.

Built to last

The all-metal build and hardened puncture pin are designed for smooth operation in all conditions over many years.

Compatibility & fit

Presses on to Presta valves and threads on to Schrader valves. Takes threaded CO2 cartridges; this is the regulator head only, so cartridges are sold separately. Not recommended for TPU tubes, which SILCA advises inflating with a pump.

Options

ColourDifference
Red / BlackColour only
Green / GreyColour only
Covered by the SILCA Lifetime Warranty: free of defects in materials or manufacturing for the lifetime of the user, with hard parts guaranteed to remain functional for 7 years from the date of purchase. Rubber parts fall under the SILCA Limited Warranty, and damage from abuse, modification or impacts is not covered. For warranty support, return the product to Tune Cycles and we'll manage the claim with SILCA's Australian distributor.
  • Dial-controlled, spring-regulated flow
  • All-metal 6063 aluminium and stainless steel build
  • Hardened tool steel puncture pin
  • Rubber insulators
  • Presta and Schrader compatible
Body6063 aluminium and stainless steel, rubber insulators
Flow controlSpring-regulated dial
Puncture pinHardened tool steel
Valve compatibilityPress on Presta, thread on Schrader
CartridgeThreaded; not included
OptionsRed / Black, Green / Grey
SKU ECH-P-SI-EOLO-IV
Brand SILCA
Shipping Weight 0.3000kg
Shipping Width 0.160m
Shipping Height 0.060m
Shipping Length 0.220m

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