Sidi's Ergo 4 Carbon Mega Road Shoe is a high-performance shoe designed to handle the efforts of the strongest riders who require a higher-volume shoe built around Sidi's Mega last. Using the previous Ergo 3 as a starting point, the latest generation Ergo 4 features an improved Soft Instep 3 Closure to provide comfort across the top foot, and it's adjustable using one of the two Tecno-3 tension dials on each foot. The synthetic leather upper is simultaneously sleek and durable, and it houses Sidi's Heel Cup and Adjustable Heel Retention Device to prevent slippage during hard sprints or steep uphills. Power transfer is expertly handled by the Ergo 4's Twelve Carbon Composite Sole that uses a combination of carbon fiber and nylon for supreme lightness and stiffness that's still tuned to prevent hot spots for lasting comfort.
The Ergo 4 Carbon Mega is 4 mm wider across the ball of foot and also roomier in the heel and higher in the instep. Replaceable heel pad.
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I'm have a very wide foot .there is plenty of room ,the boa system locks the foot in tight when you need it for climbing or sprinting .
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