D4 reigns king atop downhill podiums and freeride events across the globe. Available in carbon and composite, details are what makes the D4 the most coveted full-face in mountain biking. Prioritizing safety while balancing weight through premium construction and materials, D4 incorporates MIPS protection with an EPP chin bar and anatomical cheek pads with emergency release.
This helmet is designed and intended exclusively for use by bicycling activities, including mountain biking and off-road cycling.
Specifications
- Mips® C2 Rotational Impact Brain Protection System
- UD carbon fiber shell
- Three shell sizes to more accurately fit a variety of head sizes and rider ages
- Anatomical "3D” contoured cheek pads with emergency release system for EMS responders
- Removable snap-in, washable comfort liner with Coolmax® and Dri-lex® moisture-wicking materials
- Super light titanium D-rings
- 1000g
- CPSC 1203*, CE EN1078*, ASTM F1952-DH, ASTM 2032-BMX. *Varies by regional standards
D4 Helmet Sizes
XS
SM
MD
LG
XL
2X
Hat Size
6 5/8 - 6 3/4
6 7/8 - 7
7 1/8 - 7 1/4
7 1/4 - 7 3/8
7 1/2 - 7 5/8
7 3/4 - 7 7/8
CM
53 - 54
55 - 56
57 - 58
58 - 59
60 - 61
62 - 63
Inches
20 7/8 - 21 1/4
21 5/8 - 22
22 3/8 - 22 /34
22 3/4 - 23 1/4
23 5/8 - 24
24 3/8 - 24 3/4
Measuring your head with a fabric tape measure around the circumference of your head holding the tape just above your eyebrows and ears. 1" = 25mm
