SIDI Physis Mountain Clipless Shoes - Sand 39 Length-344 Lighter on the central part

Lighter on the central part and more aggressive on the shoulder

DRIVER: cassette driver

ASPD - Addix Speed compound features improved rolling resistance while also increasing durability and and overall grip

Fixed-gear lockrings with an outside diameter of 41 to 44 mm

The light yet responsive button clicks over rough terrain eliminate second-guessing for greater confidence and flow

SIDI Physis Mountain Clipless Shoes - Sand 39 Length-344 Lighter on the central partPhysis is designed to deliver all the freedom to top performance. The total carbon stiffness 11 sole with gripping rubber inserts meets Ergofeel anatomic design to preserve the foots natural functionality. Matched by a premium welded upper the shoes deliver the greatest balance of comfort and lightness so that fatigue comes at last. The foot is solidly stabilized with Solid Strap a technology that SIDI patented to eliminate straps tension loss during