stand out on the podium

SAFETY MEETS STYLE.

The SE5 debuted as one of the most advanced helmets on the market, emphasizing safety and protection for our fastest racers. Available in carbon and composite shells, SE5 integrates EPS and EPP protection with the Mips® Integra system, reducing rotational forces.

An engineered airflow system beginning at the mouthpiece ensures the SE5 is as comfortable atop your head as it is on the podium.

  • Mips® Integra Rotational Impact Brain Protection System

    The ultimate protection for your head.

  • LIGHTWEIGHT

    From 1300g to 1470g, you won't notice you're wearing it.

  • MAXIMUM VENTILATION

    Ultimate airflow and ventilation to keep you cool

SAFETY MEETS STYLE.
SAFETY MEETS STYLE.
SAFETY MEETS STYLE.

FEATURES & TECH

Mips®

In-molded Mips® Integra Rotational Impact Brain Protection System.

Weight:

CARBON 1350g | COMPOSITE 1470

COMFORT LINER

Quick release XT2 3D cheek pads and Ionic® XT2 washable liner create an optimized fit with advanced anti-microbial properties.

VENTILATION

Chinbar mounted gill-set force air intake system

EPP COLLARBONE IMPACT SYSTEM

EPP Chin bar featuring Collarbone Suspension System

EPS HEAD FORM

Dual density to protect against low and high speed impacts

INCREMENTAL SIZING

3 helmet shell sizes and padding options for full incremental sizing for greater range of fitment

Size Chart

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

Size XS SM MD LG XL XXL
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
IN 20 7/8 - 21 1/4 21 5/8 - 22 22 3/8 - 22 3/4 22 3/4 - 23 1/4 23 5/8 - 23 1/4 24 3/8 - 24 3/4

Compare D4 Helmet Lineup

Most Popular

SE5 Carbon

SE5 Composite

WEIGHT 1350g 11470g
SHELL MATERIAL Carbon Shell Composite Shell
SHELL SIZES 3 helmet shell sizes and padding options for full incremental sizing for greater range of fitment 3 helmet shell sizes and padding options for full incremental sizing for greater range of fitment
ROTATIONAL DEVICE Mips® Integra Rotational brain protection system-protects against rotational impacts. Mips® Integra Rotational brain protection system-protects against rotational impacts.
IMPACT LINER EPP-Lined Chin bar featuring Collarbone Suspension System EPP-Lined Chin bar featuring Collarbone Suspension System
COMFORT LINER Quick release XT2 3D cheek pads and Ionic® XT2 washable liner create an optimized fit with advanced anti-microbial properties. Quick release XT2 3D cheek pads and Ionic® XT2 washable liner create an optimized fit with advanced anti-microbial properties.
VISOR SCREWS Smart sheer plastic visor screws and brass inserts for easy impact break-away Smart sheer plastic visor screws and brass inserts for easy impact break-away
NUMBER OF VISORS 1 1
VENTILATION Chinbar mounted gill-set forced air intake system Chinbar mounted gill-set forced air intake system