AT4.0 CARBON

Oni

A$581.25 A$775.00
3465 reviews
Rated 4.5 out of 5 stars
5 stars (2677)
4 stars (321)
3 stars (161)
2 stars (99)
1 star (207)
25% OFF THIS HELMET LIMITED TIME ONLY
CONNECT WITH
Audio + Call Ready
COMPATIBLE WITH
Shockwave Audio
CERTIFICATIONS
DOT ECE 22.06 SHARP 4*
 
Specs & Description
ShellCarbon fibre
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 | Sharp 4*
Field of View (FOV)215°
PinlockPinlock ready
What’s in the BoxClear & tinted visor included

Oni brings a legendary snow design into the AT4.0 CARBON range for the first time. Silver foil katana detail, blood-red sun and a serpent coiled around the head. Some demons cannot be tamed.

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 via UPS TRACKED EXPRESS from our UK Headquarters
  • FLAT-RATE SHIPPING of A$59
  • Duties and taxes may apply
  • EASY EXCHANGES via our exchanges portal
  • EASY RETURNS via our returns portal
For orders over A$1,000 (including shipping), import GST, customs duty and clearance charges may apply and be payable via the carrier before delivery.
Helmet with DOT and ECE certification
DOT Certified
ECE 22.06 Certified

Seal of Approval.

AT4.0 CARBON is engineered for safety performance, exceeding ECE 22.06 requirements by a minimum of 20%, and carrying DOT approval and a SHARP 4-star rating.

Helmet interior padding

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.

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.

Shockwave Bluetooth audio system
Bluetooth

Protection Meets Connection

AT4.0 CARBON is compatible with the Shockwave Bluetooth audio system. Featuring seamless helmet integration, the system delivers rich & crisp audio.

215 degree field of view

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.

Helmet ventilation system

Full Climate Control.

Take full control of your helmet environment with open/close vents & tune your thermal comfort in both warm and cool climates.

FAQs

How do I know what size AT4.0 CARBON motorcycle helmet to get?

Take a fabric measuring tape, wrap it around your head just above your eyebrows and ears. Pull the tape until comfortably tight. Take the measurement. Our motorcycle helmet fit is intermediate oval.

How tight should the AT4.0 CARBON motorcycle helmet be?

A helmet should feel snug, with even pressure around your crown and a firm cheek bite. Cheek pads bed in over time, so it shouldn't feel loose (or "perfect") straight away. There should be no helmet movement when turning from side to side. A snug fit is essential for safety.

Does carbon fiber perform better?

Carbon fiber delivers a perfect balance of light weight and superior impact absorbing characteristics, making it a great choice for motorcycle helmets.

What is RHEON™?

It's impact tech that hardens on crash impact, preventing injuries from linear and rotational impacts. Standard headliners can't do this. RHEON™ can.

What buckle does the AT4.0 CARBON motorcycle helmet use? Is it safe?

Fidlock. It's magnetic + mechanical. The magnet pulls the tab in. The mechanical lock holds it. To open, pull tab which will open the mechanism. Wind won't open it. Crashes won't open it. It's much quicker to use than a double D-ring and just as safe.

How do I clean the AT4.0 CARBON motorcycle helmet visor without scratching it?

Rinse the visor first, grit is the enemy. Use mild soap and a microfiber towel. Wipe off. For longlasting protection, order one of our Muc-Off Helmet Cleaning Kits.

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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
3,465 verified reviews
5 77%
4 9%
3 5%
2 3%
1 6%
What riders love
Style5.0 / 5.0
Comfort4.8 / 5.0
Features4.6 / 5.0
Tech4.8 / 5.0
What riders say
FitRuns smallRuns large
WeightLightHeavy
VisionNarrowWide
Noise levelQuietLoud
Verified reviews Showing 20 of 3,159
Jesse RogersAugust 25 2026
I absolutely love this helmet. The fit, comfort, quality, and overall design are everything I was hoping for, and I’m extremely happy with the purchase. My only real disappointment is the timing of the promotions. Literally the day after I placed my order, the helmet went on a better sale. Then, within a week, the Bluetooth system was being offered for free. The Bluetooth was actually something I really wanted when I purchased the helmet. I seriously considered adding it for the extra $200, but ultimately decided against it after hearing some mixed feedback about the system. Seeing it included for free just days after my purchase was definitely a little painful. 😂 I had been watching Ruroc for quite a while, waiting for what I felt was the right deal, so it felt like I finally pulled the trigger and then all of the better offers showed up immediately afterward. I completely understand that promotions change and that there’s no guarantee of buying at the perfect time. I also know I can’t exactly use the coupons and promotions that came afterward, because I already have the helmet I wanted. I just wish the timing had worked out differently, especially because I genuinely wanted the Bluetooth system and would love to have it with the helmet. That said, this is absolutely not a reflection of the helmet itself. I love it and would definitely recommend it. I’m very happy with my Ruroc purchase and plan on keeping this helmet for a long time. If there happens to be any way to get the Bluetooth system at a similar promotional price after the fact, I’d certainly be thrilled, but either way, I’m very happy with the helmet!
Amir AhmadiAugust 24 2026
Le casque est génial mais parcontre la visière noire je ne peux pas l'utiliser sur la route car c'est une visière de circuit,
JoshAugust 24 2026
Amazing helmet love this thing I wear it around my house and play video games with it thats how much I dont want to take it off
Andres Recuero CortesAugust 23 2026
Un casco muy bien hecho y con un diseño espectacular
Patrick RodriguezAugust 21 2026
I was already looking for a gold helmet even better that it was from rurok
Gregory TobéAugust 20 2026
Good kwaliteit
Steve LauteAugust 19 2026
Juste magnifique Avec la visière verte irisée Suis fan !
Chad PorteousAugust 13 2026
Very well made.
Paolo ColleoniAugust 13 2026
Very best
Stuart HarrisAugust 13 2026
Very nice helmet and great fit once the correct size was sent. only thing I would say is the lining is very fiddly to get in and out for fitting the shockwave speakers and microphone and after refitting im still not confident it looks like it did before I removed it.
Joanne FarrellAugust 10 2026
Stunning helmet. Cant fault protection, comfort & visual wise. Would love if internal sun goggles were a feature but thats just a personal preference and does not take from the helmet.
johnAugust 10 2026
Great graphics. New version fits really well. All i use arec Ruroc helmets
Philip RätschAugust 10 2026
Der Helm ist klasse. Leicht und super Passform.
AbdulazeezAugust 8 2026
Mega sehr bequem
MitchezzzAugust 8 2026
Very nice and comfortable
Juan LópezAugust 7 2026
Ya me gustó por eso lo pedí y medida perfecta
Jens HausdorfAugust 7 2026
Everything is fine
Maja SchlenzAugust 4 2026
It is a classic helmet of good quality. It looks good!
BONDO CHIKHLADZEAugust 3 2026
Good quality
Will RufenerAugust 3 2026
Love the helmet. Love the graphic but best of all, love the customer support