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Troy Lee Designs D4 Polyacrylite MIPS Helmet, Shadow, black, L | 58-59cm

58 - 59 cm
Currently out of stock
Free shipping starting at 30,–

Product details

The undisputed king of full-face helmets, the D4 series, is now expanded with a polyacrylite model that packs the same safety and comfort features as the premium carbon and composite models into a budget-friendly shell. Details make the D4 the most sought-after full-face helmet in mountain biking, including the Mips® C2 brain protection system, an air intake system for ventilation, and an unparalleled anatomical fit.

  • Mips® C2 rotational impact brain protection system
  • Advanced polyacrylite shell construction
  • Front air intake system with high airflow through the polymer center and power grid side mesh
  • Clavicle protection system
  • Breakaway visor screws
  • Antibacterial padding
  • Quick-release contoured 3D cheek pads for an anatomically optimized fit.

Key specifications

Colour
Black
Head circumference
58 - 59 cm
Bike helmet size
L
Item number
54421818

General information

Manufacturer
Troy Lee Designs
Category
Bike helmets
Manufacturer no.
174499004
Release date
5.2.2025

Colour

Colour
Black
Exact colour description
Black

Target group

Age group
Adults

Helmet properties

Bike helmet size
L
Head circumference
58 - 59 cm

Origin

Country of origin
China

Voluntary climate contribution

CO₂-Emission
Climate contribution

Product dimensions

Weight
1100 g

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Reviews & Ratings

Statutory warranty score

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

Source: Galaxus
  • 22.Fischer
    0,7 %
  • 22.MET
    0,7 %
  • 22.Troy Lee Designs
    0,7 %
  • 27.Bluegrass Bicycle
    0,8 %
  • 27.Lazer Sport
    0,8 %

Statutory 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: Galaxus
  • Troy Lee Designs
    Not enough data
  • 1.Abus
    0 days
  • 1.ALPINA SPORTS
    0 days
  • 1.Lazer Sport
    0 days
  • 1.Lionelo
    0 days

Return rate

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

Source: Galaxus
  • 17.Scott Sports
    19,4 %
  • 18.Kask
    21 %
  • 18.Troy Lee Designs
    21 %
  • 20.Unit1
    22,1 %
  • 21.iXS
    22,7 %
Source: Galaxus