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Sidi
Ergo 3 Vent Carbon Shoes

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Foot AC.

Our regret when Sidi retired the venerable Ergo 2 was only surpassed by our pleasure from the first pedal stroke in their replacement, the Ergo 3 Vent Carbon Shoes. It has all the same features that inspired a devoted — and often clandestine — Ergo 2 following in the peloton, even among pros sponsored by other brands. In fact, the big only difference is the addition of venting in the sole to offer selectable airflow for four-season comfort.


Except for the optional venting, the sole shares the same construction method as the Carbon Lite sole, less 38 grams of weight. Even with the weight savings, you'll get the same kind of stiffness and razor sharp power transfer you've grown to expect from Sidi. The vent inlet at the toe can be opened or closed depending on the temperature and your preferences — even while on the bike if necessary. The airflow moves underneath and through the insole to cool your feet in sweltering summer temps.


The Ergo 3 has the same closure system as previous Ergo shoes — Ratcheting Caliper Buckle, Techno II Buckle, and hook-and-loop. The Ratcheting Caliper Buckle is mated to Sidi's Soft Instep Closure System strap that more evenly spreads the upward stroke pedaling forces across the top of your foot. The buckle on the outside of the foot provides a maximum of two clicks per uptake along with single-click releases, meaning that you can precisely tension the pressure of the strap, even during a race. The Techno II Buckle allows you to micro-adjust strap pressure, so the fit of your upper won't be too loose or too tight. No other system so precisely and so gently provides a custom fit. The hook-and-loop strap on the toe is reinforced with integrated locking teeth to absolutely, positively resist slippage during crucial all-out efforts.


Sidi's improved its Heel Security System (HSS) to keep your foot positively planted in the shoe. It's an adjustable, rigid composite band that closes the shoe more securely over your heel to anchor it in place around your Achilles. So no matter how much power you're pouring into the pedals, your heel will stay in place inside the shoe. It's a detail that allows you to cinch down the straps of your shoes less tightly — giving you more comfort along with more security.


With a degree of engineered flex in the Vent Carbon Sole and a secure and slip-free heel, you won't have to worry about hot spots. And you don't have to worry about heat in the rest of your feet, either, thanks to the Ergo 3's combination of microfiber and ballistic mesh — giving you comfort, fit, ventilation, and durability. Two final touches worth noting are the replaceable traction pads at the heel and toe, which extends the life of the shoes indefinitely. We have at least one pair of 10-year-old Sidi Geniuses kicking around the office that would still be in use had we thought to replace the pads instead of grinding them all the way down past the bolt heads.


Upper Material
Lorica (synthetic leather)
Closure
ratchet strap, Techno II buckle, hook-and-loop
Sole
carbon fiber
Cleat Compatibility
3-hole road
Recommended Use
road cycling
Manufacturer Warranty
1 year

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