Product Details
Size Guide
XS | S | SM | ML | L/XL | XL/XXL |
---|---|---|---|---|---|
54-54.9cm | 55-55.9cm | 56-57.4cm | 57.5-59.9cm | 60-61.9cm | 62-63cm |
Ruroc AT4.0 Carbon Serpent Helmet
Unleash the beast with the Ruroc AT4.0 Serpent full face helmet, now available at Moto Central, your Official Ruroc Sizing Station. This striking helmet features the venomous Jormungandr in a truly demonic design, wrapping its detailed scales and monstrous head from the front to the back. The highlighted neon spine of the Serpent snakes around the helmet, creating a visually arresting and powerful aesthetic. The AT4.0 Serpent motorcycle helmet is not for the faint-hearted; it embodies mythology and intricate detailing, presenting a ferocious design ready to dominate the streets. At Moto Central, we are proud to offer this unique colourway and, as your dedicated Ruroc partner, we can order any colour and size from the extensive AT4.0 range to meet your exact preferences. Simply let us know your desired specifications, and we'll arrange it for you.
Riding with the AT4.0 Serpent motorcycle helmet has never been more comfortable. It features an all-new, tailor-made sweat-wicking premium fabric with intelligent contouring foam that adapts to the profile of your face using multiple layers of multi-density foam. Beyond comfort, the AT4.0 Serpent boasts both ECE 22.06 certification and the innovative RHEON™ headliner. This makes it one of the first motorcycle helmets to achieve the ECE 22.06 rating, while the RHEON™ headliner utilises reactive polymers to effectively reduce rotational and linear impact forces applied to your head, ensuring superior safety. The new ventilation system offers precise climate control with four-stage open and close vents on the front and top of the helmet, providing optimal airflow in both cold and hot temperatures. For a smoother and quieter riding experience, the AT shell has been streamlined by removing two top vents, resulting in less air resistance and enhanced acoustic performance with our included sound-dampening ear inserts. At Moto Central, we prioritise both your safety and your comfort on every ride.
While the AT4.0 is Ruroc's quietest motorcycle helmet yet, you can further enhance your functionality and entertainment with the optional Shockwave™ Bluetooth insert (sold separately). This seamlessly integrates into the rear of the helmet, delivering high-quality audio with rich bass for up to 8 hours of playtime via a convenient USB-C rechargeable battery. Customise your AT4.0 Serpent with our wide range of helmet visors, easily interchangeable thanks to the quick-release thumbscrews. The helmet comes equipped with a clear visor for road use and includes a secondary tinted visor for track days. All our visors are also compatible with Pinlock® inserts (available separately) for effective anti-fog protection. Visit Moto Central today, your Official Ruroc Sizing Station, to explore the powerful Ruroc AT4.0 Serpent and discover the full spectrum of Ruroc helmets and accessories available. Remember, we can order any colour and size to perfectly suit your individual style and needs.
Key Features:
- ECE 22.06 & DOT FMVSS 218 certified
- Ultra-tough Carbon fibre shell construction
- Features RHEON impact technology for superior safety
- Multi-Density EPS for targeted impact protection
- Premium headliner and multi-density cheek-pads for optimised comfort and fit
- Edge-to-edge coverless visor with an ultra-wide 215-degree field of view
- Simple and secure Fidlock chinstrap
- Compatible with the integrated Shockwave Bluetooth communication system
Reviews & Questions

About Ruroc
Ruroc is a British helmet brand recognised for blending bold design with advanced safety technology. After making its mark in snow sports, the brand entered the motorcycle world with its Atlas range—helmets known for aggressive styling, aerodynamic performance, and high-spec construction.
Designed in the UK, Ruroc helmets offer a unique combination of style and protection. With each new model, they continue to refine comfort, noise reduction, and overall performance—making them a standout choice for riders looking for something different.