AT4.0 CARBON

Core

€431.10 €479.00
2235 reviews
Rated 4.5 out of 5 stars
5 stars (1745)
4 stars (188)
3 stars (89)
2 stars (71)
1 star (142)
Ruroc covers the cost of import taxes VAT/Duty.
CONNECT WITH
Audio + Call Ready
COMPATIBLE WITH
Shockwave Audio
CERTIFICATIONS
DOT ECE 22.06 SHARP 4*
 
Specs & Description
ShellCarbon fiber
WeightSM – 1600g ± 50g
ComfortSport liner — soft + snug fit
Added Safety TechnologyRHEON
Audio / Comms Tech Shockwave Bluetooth Audio ready
*Sold separately
ChinstrapFidlock
CertificationsECE 22.06 | DOT
Field of View (FOV)215°
PinlockPinlock ready
What’s in the BoxClear & tinted visor included

Stealth, stripped back, unmistakably AT4. AT4 Carbon Core takes one of our most-loved minimal graphics and puts it on the latest AT4.0 platform. Clean lines, deep matte finish, and zero noise.

Built for real riding. This is a helmet made to disappear once you’re moving. Stable at speed, composed in crosswinds, and designed to reduce fatigue over long days in the saddle.

Premium feel, daily usability. Every touchpoint is tuned for repeat rides. Easy to live with, confidence-inspiring to wear, and made to stay comfortable when the hours stack up.

Sport model for fast, high-octane rides. AT4.0 Carbon takes the Street attitude and dials it up. Stronger, sharper, and more advanced for riders who live for speed, with a true performance edge when you’re pushing on. Explore AT4.0 Carbon.

The value is in the platform. Clean design now, options later. Add Shockwave Bluetooth audio (sold separately) for music, navigation, calls and rider-to-pillion comms. Switch up the look with visors.

What's in the Box - AT4.0 CARBON
What's in the box overview image What's in the box
(Helmet style not shown)
Clear & Tinted Visors Clear & Tinted Visors
Sound dampening ear inserts Sound dampening inserts
Maverick Mask Soft helmet bag
  • AT4.0 CARBON Helmet
  • Tinted Visor
  • Clear Visor
  • Sound dampening ear pads
  • Soft helmet bag
3 year warranty

Ruroc warrants motorcycle helmets to be free of defects in material or workmanship for a period of 3 years from the date of purchase. The warranty is for the original purchaser only (non-transferable). If a product fails due to a manufacturing defect within the warranty period, Ruroc will repair or replace it free of charge, subject to the warranty terms and valid proof of purchase.

What's not covered?
What isn’t covered includes normal wear and tear, damage from accidents/falls/impact, cosmetic ageing/fading due to the elements, and any indirect, incidental, or consequential loss of any kind. For a complete list of what’s not covered, please check our full warranty details.

Crash Replacement (optional add-on)
Crash Replacement is an additional purchase (it's automatically added to your cart when you add a helmet) that covers accidental damage (drops/crashes). If your helmet is damaged in a crash or accident, it lets you replace it with 50% off a new Ruroc motorcycle helmet, as long as it’s redeemed within the helmet’s warranty period and in line with the scheme terms. Full Crash Replacement details can be found in our Terms & Conditions.

View full warranty details here.

Delivery & Returns
  • Delivered in custom protective packaging from our Netherlands depot*
  • FREE SHIPPING over €100 via tracked courier
  • FREE RETURNS
  • FREE EXCHANGES
  • EU countries: this varies by country, but it can take up to 6 days from dispatch
*Some spare parts may ship internationally from our UK depot.

The new standard for safety

Atlas 4.0 helmet safety testing infographic highlighting impact protection improvements

ECE 22.06

AT4.0 is one of the first motorcycle helmets on the road to meet ECE 22.06. Not only that, we exceed all testing standards by a minimum of 20%, to give you the ultimate protection.

Helmet Features

Ultimate Comfort

The fully re-engineered internals, including head-liner and cheek pads, take fit, comfort, acoustic control and support to a whole new level.

Quieter than ever

The AT4.0 internal lining is equipped with new sound-dampening inserts around the ear structure. This improves acoustic performance by 57%*, making it the quietest ATLAS ever produced.

*From AT3.0 vs our leading competitor

Climate Control

Take full control of your helmet environment with open/close vents throughout - including the addition of a new top vent switch.

Maximum Vision

Featuring 215° horizontal and 100° vertical field of vision, the AT4.0 edge-to edge visor maximises peripheral vision. Anti-scratch dipped, Pinlock 70 compatible, and made from Optical Grade Ballistic Polycarbonate, this is vision reinforced.

RHEON™ Protection

The world’s first road-ready motorcycle helmet to feature RHEON™ technology. Next-level protection seamlessly integrated into the AT4.0 head-liner.

Bluetooth Audio

Convert your AT4.0 into a full Bluetooth motorcycle helmet with our Shockwave audio system. Plug into your favourite tunes, and take calls. It fits seamlessly into the back of your helmet, without compromising on the style, safety and aerodynamics of your setup.

Tech Specs

A closer look at the details of the AT4.0

Weight:

1600 ± 50g

Helmet weight is based on a SM. Additional sizes will vary

Chinstrap:

Fidlock

Shell construction:

Carbon Fibre

Field of View:

215º Horizontal
100º vertical

Internal liner:

Rheon integrated & washable

Ventilation:

2 Open/Close Switch Vents

(Chin & Top)

Visor:

Pinlock
Compatible

Pinlock sold separately

Communications:

Shockwave compatible

You asked, we listened

Is the helmet suitable for all seasons?

Yes; hot, cold, wet, windy, you name it. For hot/cold days, a discreet open/close vent switch has been added to the top vent. Easy to activate whilst riding if weather changes. In addition, the helmet is optimally sealed around the vents and visor to keep driving rain out on wet and windy days.

Graphic comparing Atlas 4.0 top vent open and closed positions for seasonal airflow control
What changes have been made internally to the helmet?

We have partnered with RHEON™ to create the AT4.0 enhanced comfort liner, the first of its kind to be used in motorcycle helmets, and a game-changer in rotational energy management. The all new cheek/comfort liner construction boasts up to seven layers of multi-density comfort foam with targeted areas of acoustic foam for the ultimate fit, comfort and noise reduction.

Cutaway diagram showing layers of the Atlas 4.0 Rheon comfort liner alongside previous construction
Is the helmet loud when riding?

Testing at Silverstone Wind-Tunnel comparing AT4.0 to competitors and previous ATLAS models showed acoustic performance on the AT4.0 is improved by 57%*, making it the quietest ATLAS ever produced. Full results of the testing can be viewed below.

Download test results*From AT3.0 vs our leading competitor.
Has the helmet been independently tested?

AT4.0 has been GLOBALLY independently tested; at Newton labs in Italy for impact attenuation development, at VIAS Institute in Belgium for development and ECE 22.06 certification, and at ACT Labs in China for DOT impact and penetration testing and certification. Alongside this ATLAS 2.0 and 3.0 have been granted a 4* SHARP rating, an evaluation that can only be achieved through independent purchase and test, and once AT4.0 is on sale this will be next on the list.

ECE 22.06 testing comparison chart for Atlas 4.0 helmet certification results
When will helmets be shipped?

AT4.0 helmet sizes will each have one of three shipping statuses.

Available now

These items are physically in our warehouse and ready to dispatch immediately! Place your order today for this item and it will be processed and dispatched within 24 hours (excluding Saturday/Sunday) - always check if all items in your basket have the same stock status as this may cause your order to wait for the longest lead item.

In transit

Items with this status are in transit to the Ruroc HQ! This means these items are either in a plane or on a boat on their way to us as we speak. Once they land at HQ they will be ready to immediately dispatch by the date given above.

In production

These items are either in the paint shop or on the assembly line! This means your gear is being produced and will have spent no time sat on a shelf by the time it arrives with you meaning unlike when you purchase a helmet from a store that may have been on a shelf for over a year we can guarantee you’ll have the full life of your safety product! Pre-order these items now and you’ll be the first to get yours once they’ve arrived. They will dispatch within the month displayed.

What is your returns policy?

We offer returns or exchange up to 14 days after delivery. View our returns page below:

Returns Policy

Got a question and can't see the answer? Head over to our support page below where you can find all of our FAQs and a link to our How To videos, with all the tips and tricks to get the most out of your new helmet.

Visit support page
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Find your size
We recommend:
How to measure
  1. With a fabric measuring tape, wrap it around your head just above your eyebrows and ears.
  2. Pull the tape comfortably tight. Take the measurement.

Our motorcycle and snow helmet fit is an intermediate oval.

Returns policy

If the fit is not quite right our return process is simple. 14 days to exchange, picked up from home. See our returns page for more details.

Reviews for AT4.0 Carbon Range

All reviews are from verified customers

4.5 /5
2235 Reviews
HectorcubsMarch 2 2026
Very well made- fits right- & looks great
Pablo CitonMarch 2 2026
The helmet is comfortable, but the cheek pads are too thick, and I couldn't find an option to buy thinner ones on the website. The internal fastenings are weak and look cheap. I found it too noisy at high speeds, to the point of being quite annoying. Overall, the helmet is okay, but it didn't surpass any other helmets I've owned.
Igor CapiluppiMarch 1 2026
The best helmet I have ever bought.
Damian BilickiMarch 1 2026
Helmet looks beautiful
GASPAR GARCIA GARCIAMarch 1 2026
Algo pesado, el intercom se integra perfecto, cuando mandan el casco no incluye pin lock y es necesario, pero contento
Braden GonzalezFebruary 27 2026
Love the design looks better in person
Nesta PhotographyFebruary 27 2026
Sick motorcycle helmet love the design of the reaper
Gabriel GrzegorczykFebruary 26 2026
Looks great, quite big though. All good.
customerFebruary 26 2026
Had to exchange for larger size with quick,hassle-free return and shipping
Dane AlbinFebruary 25 2026
This is a high quality helmet and it fits well. I am definitely not disappointed with this purchase.
Mathieu RouxFebruary 24 2026
Casque confortable. Respire la qualité. Design unique
Chad JonesFebruary 23 2026
Awesome helmet very comfortable super quiet. I’m a fan from here on out.
Miky ErreFebruary 23 2026
Tutto ok grazie mille
Mike BrownFebruary 23 2026
Great fit, very comfy, and changing visors is so easy
Jose HerediaFebruary 20 2026
Very happy with my helmet
Josh ThackerayFebruary 20 2026
Really like this helmet, it looks great and is a definite head turner. I thought it may have been a bit tight at first but is really snug and comfortable. Love this helmet!!
Surelis AcostaFebruary 20 2026
Loved it, great helmet
Logan PolachFebruary 19 2026
Very well fitted and high quality
brian dentFebruary 18 2026
Great helmet. Little snug at first but wore in during the first week. Visibility is incredible.
Bianchinin OcéaneFebruary 16 2026
Assez déçue…je m’attendais à un casque profondément noir avec de jolis reflets, mais le casque est en fait gris pailleté? (très flagrant à la lumière du jour) Je ne m’attendais pas à ça, même s’il reste très esthétique