Sidi AERON MTB Cycling Shoes Black Size 42

The Sidi AERON Black MTB cycling shoes size 42 are designed for riders who value stability, rhythm and consistent performance in XC racing and marathon MTB riding. Size 42 offers a balanced fit that supports long efforts without pressure points or loss of control.

The ripstop upper with rubber reinforcements protects the foot on technical terrain while maintaining a lightweight, race-focused silhouette. Dual NUUN 001C aluminum dials allow fast and precise fit adjustment during the ride. The Firmor X internal support system stabilizes the foot during climbs, accelerations and high-cadence efforts.

The UNUM Ergo anatomical tongue distributes pressure evenly for lasting comfort. A full carbon X2FC outsole with stiffness index 11 ensures efficient power transfer, while rubber inserts improve traction on steep and slippery sections. The tool-free adjustable heel cup allows the Sidi AERON Black 42 to be precisely tuned for confident, race-ready riding.

Technical specification:

• Model: Sidi AERON

• Size: 42

• Colour: Black

• Upper: Ripstop material with rubber reinforcements

• Closure: Dual NUUN 001C aluminum dials

• Fit system: Firmor X + tool-free adjustable heel cup

• Tongue: UNUM Ergo anatomical

• Outsole: X2FC full carbon with rubber inserts

• Stiffness index: 11

• Cleat adjustment: Wide adjustment range

• Replaceable parts: Heel cup, NUUN 001C dials, studs

• Intended use: MTB / XC

Shipping:
We ship within Poland, across the entire European Union, and worldwide.