SIDI Physis Mountain Clipless Shoes - Black 49 Thickness-20 The higher security disc cylinder

The higher security disc cylinder now includes an anti-float feature to keep the discs from moving and readjusting when in transit

110mm chainring BCD

Tool Size 22mm

High flow linear rebound update increases response without a loss of control or damping

SIDI Physis Mountain Clipless Shoes - Black 49 Thickness-20 The higher security disc cylinderPhysis 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