Sidi AERON MTB Cycling Shoes Black Size 44

The Sidi AERON Black MTB cycling shoes size 44 are designed for riders who focus on long XC races and marathon MTB riding. Size 44 provides a stable, balanced fit that supports extended efforts without pressure points or unnecessary adjustments.

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

The UNUM Ergo anatomical tongue distributes pressure evenly to improve comfort over long distances. 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 44 to be precisely tuned for confident, endurance-focused performance.

Technical specification:

• Model: Sidi AERON

• Size: 44

• 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.