AT4.0 CARBON Jormungandr

Ancient legend. Modern aggression. Carbon-fibre dominance.

AT4.0 CARBON Jormungandr brings one of Norse mythology’s most feared creatures to life through a design that feels as powerful as the legend itself. Wrapped in scaled armour textures, intricate runic details, and the menacing jaws of the World Serpent, this helmet transforms exposed carbon fibre into a rolling piece of mythology. Dark, intimidating, and impossible to ignore, Jormungandr is built for riders who embrace the wild side of the road.

Constructed from a lightweight carbon fibre shell, AT4.0 Carbon delivers exceptional strength, aerodynamic stability, and all-day riding comfort. Whether you're carving through mountain passes, cruising open highways, or navigating demanding conditions, the helmet remains composed, predictable, and confidence-inspiring at every speed.

Inside, the Sport liner combines a soft-touch feel with a secure, performance-focused fit designed to minimise fatigue during long rides. Every detail has been refined to create a helmet that feels natural from the moment it goes on and remains comfortable mile after mile.

Enhanced with advanced RHEON impact protection technology, AT4.0 CARBON Jormungandr delivers modern safety without compromising weight or comfort. Certified to ECE 22.06 and DOT standards, it features a wide 215° field of view, a secure Fidlock magnetic chinstrap, and compatibility with optional Pinlock anti-fog inserts for improved visibility in changing weather conditions.

Designed for riders who demand versatility, the helmet is fully compatible with Shockwave Bluetooth Audio (sold separately), allowing seamless access to navigation, music, calls, and rider communication while maintaining its clean, aggressive appearance.

Key Features

• Lightweight carbon fibre shell construction
• Weight: 1600g ± 50g (Size SM)
• Sport liner with soft, snug fit
• RHEON impact protection technology
• Fidlock magnetic chinstrap
• ECE 22.06 & DOT certified
• 215° field of view
• Pinlock ready visor system
• Shockwave Bluetooth Audio ready
• Norse mythology-inspired graphic design
• Clear and Tinted visors included

What's in the Box

• AT4.0 CARBON Helmet
• Clear Visor
• Tinted Visor
• Sound-Dampening Ear Pads
• Premium Soft Helmet Bag

Inspired by the legendary World Serpent that encircles the earth, AT4.0 CARBON Jormungandr combines mythological power, exposed carbon fibre construction, and everyday rideability into a helmet built to leave a lasting impression wherever the road leads.