Rotor Spider Round Double Rings for rex cranks

40
Ratings
BrandMore from Rotor
Delivered between Fri, 31.7. and Tue, 4.8.
Only 1 piece in stock at supplier
Free shipping starting at 50.–

Product details

The Spider Round Double Rings for Rex cranks by Rotor are specifically designed for cyclists looking to elevate their performance to a new level. These chainrings offer an innovative solution for anyone aiming for a smooth power transfer during pedaling. With a diameter of 110 mm and 40 teeth, they are ideal for road bikes. The round chainrings are made from high-quality aluminum, which not only ensures durability but also reduces weight. The asymmetrical 4-arm mount allows for easy installation and adjustment to various crank models. These chainrings are an excellent choice for anyone looking to improve their technique and increase their efficiency.

  • Optimal power transfer for smooth pedaling
  • Made from lightweight and durable aluminum
  • Asymmetrical 4-arm mount for easy installation
  • Suitable for 11-speed rear and 2-speed front shifting.

Key specifications

Chainring mount
4-arm asymmetrical
Crank compatibility
2-speed
Cassette compatibility
11-speed
Bolt circle
110 mm

General information

Item number
58866139
Manufacturer
Rotor
Category
Chainrings
Release date
26.5.2025

Colour

Colour
Black
Exact colour description
Outer Black

Material

Material group
Metal
Material
Aluminium

Chainring properties

Bike area of use
Racing bikes
Chainring mount
4-arm asymmetrical
Number of teeth
40

Compatibility

Crank compatibility
2-speed
Cassette compatibility
11-speed
Bolt circle
110 mm

Voluntary climate contribution

CO₂ emissions
0.53 kg
Climate contribution
CHF 0.11

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

Compare products

Show all

Goes with

Reviews & Ratings

Warranty score

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

Source: Digitec Galaxus
  • Rotor
    Not enough data
  • 1.e*13
    0 %
  • 1.Wolf Tooth
    0 %
  • 3.Shimano
    0.1 %
  • 4.Sram
    0.2 %

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
  • Rotor
    Not enough data
  • e*13
    Not enough data
  • KMC
    Not enough data
  • Miche
    Not enough data
  • Race Face
    Not enough data

Unfortunately, we don't have enough data for this category yet.

Return rate

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

Source: Digitec Galaxus
  • Rotor
    Not enough data
  • 1.Miche
    1.9 %
  • 2.e*13
    5.9 %
  • 3.Stronglight
    6.9 %
  • 4.Shimano
    7 %
Source: Digitec Galaxus