Size Guide

Ruroc AT4.0 Carbon Core Black

Official Sizing Station for Ruroc Available in Multiple Colours & Sizes

At , we are proud to be an Official Sizing Station for Ruroc and the Ruroc AT4.0 Carbon Core Black. This means we can accurately size you in-store and order any colour or size from the full range of this model ideal if you’d like to try before you buy or view the wide variety of options available.

The Ruroc AT4.0 Carbon Core Black is the ultimate stealth-inspired motorcycle helmet. With a lightweight carbon fibre shell and a matte black finish, this helmet is engineered for riders who appreciate performance, safety, and bold minimalistic style. Its updated design meets the new ECE 22.06 safety standard, ensuring top-tier protection on the road.

Equipped with advanced RHEON impact technology and a premium, moisture-wicking interior, the AT4.0 delivers unmatched comfort for long rides. The helmet also supports the Shockwave Bluetooth system (sold separately), transforming it into a multimedia-ready experience. Thanks to removable vents and sound-dampening inserts, this is the quietest and most comfortable helmet in the AT Core range yet.

We offer the Ruroc AT4.0 Carbon Core Black for viewing and fitting in-store, and can bring in any colour or size variation at your request. Visit us at for expert fitting and personal service.

Key Features

• ECE 22.06 & DOT FMVSS 218 certified
• Ultra-tough carbon fibre shell for lightweight durability
• Worlds first road helmet to integrate RHEON impact technology
• Multi-density EPS for advanced impact protection
• Tailored cheek pads and moisture-wicking headliner for comfort and fit
• Edge-to-edge coverless visor with 215 ultra-wide field of view
• Fidlock magnetic chinstrap for fast and secure fastening
• Compatible with Shockwave Bluetooth audio system (sold separately)
• Adjustable front vents for optimised airflow and temperature control
• Supplied with clear visor (road use) and tinted visor (track use only)
• Pinlock insert ready visor (insert available separately)