Rennen Aluminium crown with 4 threaded bolts

44
Ratings
BrandMore from Rennen
Delivered between Mon, 31.8. and Mon, 7.9.
Supplied by
free shipping

Number of teeth2

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Product details

The Race chainring made from high-quality aluminum 7075-T6 features an innovative decimal tooth design that allows for precise adjustment of the gear ratio. This adjustment is achieved through a slight modification of the chainring's circumference, which is particularly beneficial for BMX riders who have varying requirements depending on the track. The chainring is designed for a 4-bolt crankset and includes directly machined mounting nuts that enable easy installation without additional tools. Weighing only 102 g, it is lightweight yet robust, making it ideal for racing. The CNC machining ensures high precision and durability, while the 4-point mounting with a BCD diameter of 104 mm guarantees a secure connection. This chainring is the perfect choice for those who value performance and adaptability.

  • CNC-machined aluminum 7075-T6 for high precision
  • Decimal tooth design for adjustable gear ratio
  • Directly machined mounting nuts for easy installation
  • Lightweight at only 102 g for optimal performance.

Key specifications

Bike area of use
BMX/Dirt
Number of teeth
44
Bolt circle
104 mm
Weight
102 g

General information

Item number
57510528
Manufacturer
Rennen
Category
Chainrings
Manufacturer No.
RENCHAR111
Release date
9.4.2025

Colour

Colour
Black
Exact colour description
Black

Material

Material group
Metal
Material
Aluminium 7075-T6

Chainring properties

Bike area of use
BMX/Dirt
Number of teeth
44

Compatibility

Bolt circle
104 mm

Origin

Country of origin
France

Voluntary climate contribution

CO₂ emissions
0.56 kg
Climate contribution
CHF 0.11

Product dimensions

Weight
102 g

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

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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
  • Rennen
    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
  • Rennen
    Not enough data
  • e*13
    Not enough data
  • KMC
    Not enough data
  • Race Face
    Not enough data
  • Shimano
    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
  • Rennen
    Not enough data
  • 1.e*13
    3.4 %
  • 2.Stronglight
    5.9 %
  • 3.Shimano
    6.6 %
  • 4.KMC
    7.6 %
Source: Digitec Galaxus