Sidi RR Nix S

45
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Product details

The RR Nix S GTX is a highly developed cycling shoe specifically designed for road cyclists who do not want to compromise on performance, even in cold weather. With an upper made of PFC-free Gore-Tex® and fleece, this shoe not only provides protection against moisture but also offers excellent thermal insulation. The aerodynamic shape ensures optimal speed, while the sole, with a stiffness rating of 9, guarantees efficient power transfer while pedaling. The innovative NUUN closure system allows for quick and precise adjustments, ensuring a perfect fit and maximum comfort. The RR Nix S GTX combines functionality and style, making it the ideal choice for demanding cyclists.

  • PFC-free Gore-Tex® upper for waterproofing
  • Stiffness rating of 9 for optimal power transfer
  • Aerodynamic design for improved speed
  • NUUN closure system for quick and perfect fit.

Key specifications

Exact colour description
Black, Black
Target group
Men, Women
Bike area of use
Racing bikes
Closure cycling shoes
Screw cap

General information

Item number
66227604
Manufacturer
Sidi
Category
Cycling shoes
Manufacturer No.
000MCNIXSBLKBLK45
Release date
12.1.2026

Colour

Colour
Black
Exact colour description
Black, Black

Material

Upper
Felt
Material
Fleece, Gore-Tex

Target group

Target group
Men, Women
Age group
Adults

Shoe properties

Shoe size (EU)
45
Bike area of use
Racing bikes
Closure cycling shoes
Screw cap
Fabric properties
Waterproof
Membrane
Gore-Tex
Sole hardness
Hard
Season
Winter

Origin

Country of origin
Italy

Voluntary climate contribution

CO₂ emissions
4.63 kg
Climate contribution
CHF 0.11

30-day right of return and free return shipment
24 Months Warranty (Bring-in)

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Reviews & Ratings

Warranty score

How often does a product of this brand in the «Cycling shoes» category have a defect within the first 24 months?

Source: Digitec Galaxus
  • 5.Five Ten
    0.4 %
  • 5.Giro
    0.4 %
  • 5.Sidi
    0.4 %
  • 8.Fizik
    0.5 %
  • 8.Ride Concepts
    0.5 %

Warranty case duration

How many working days on average does it take to process a warranty claim from when it arrives at the service centre until it’s back with the customer?

Source: Digitec Galaxus
  • 2.Crankbrothers
    6 days
  • 2.Fox
    6 days
  • 2.Giro
    6 days
  • 5.Sidi
    7 days
  • 6.Northwave
    10 days

Return rate

How often is a product of this brand in the «Cycling shoes» category returned?

Source: Digitec Galaxus
  • 13.Shimano
    37.6 %
  • 13.Trek
    37.6 %
  • 16.Fizik
    41.8 %
  • 17.Sidi
    43.8 %
  • 18.Suplest
    45.5 %
Source: Digitec Galaxus