SIDI Nix S GTX Cycling Boot - Anthracite/Ice White Size 43 CheckoutSpec= Twistshift New redesigned rim shape offers

New redesigned rim shape offers lower drag and smoother airflow between tire and rim interface

High grade polymer pulley wheels (12T upper 14T lower) allow for smooth chain running and secure retention

Interior tool pouch

DV9 V2 and HD6

Spyre brake calipers utilize two piston movement for evenly applied rotor contact resulting in optimum braking power and modulation

SIDI Nix S GTX Cycling Boot - Anthracite/Ice White Size 43 CheckoutSpec= Twistshift New redesigned rim shape offersNIX S GTX is SIDI's premium winter road cycling shoe adorned by those who seek the perfect fusion of speed and warmth. Designed for cyclists worldwide these shoes are meticulously crafted to elevate the road cycling experience in cold weather. The high tech upper construction made with Gore Tex PFC free and fleece ensures a sleek and aerodynamic profile while the sole with a stiffness level of 9 delivers optimal power transfer with each pedal stroke.