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6D ATR-1 Sonic Helmet

2017 Model DOT ; ECE 22-05
Was $695.00
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6D ATR-1 Sonic Helmet

Shipping & Returns

Orders $100 and over qualify for our free shipping offer. See our full shipping policy for further shipping details.

Return any new, unused and unaltered item within 30 business days. Create a return label online for as little as $7.99. Please read our return policy.


  • Motorcycle offroad helmet constructed with a proprietary woven blend of advanced aerospace carbon fiber, composite fiberglass and Kevlar
  • ODS (Omni Directional Suspension) technology reduces angular acceleration and improves low threshold energy compliance significantly
  • ODS embodies a fully active, in helmet suspension and kinetic energy management system that reduces energy transfer to the brain over a much broader range of energy demands
  • 2 separate EPS (Expanded Polystyrene) liners separated by 27 elastic isolation dampers make up the ODS technology with the 3 dimensional displacement of the inner liner upon impact it uncouples the impact force at the outer shell from the riders head
  • Superior performance for low, medium, and high velocity impacts
  • ODS significantly reduces linear accelerations, recenters alignment when the impact load is removed and provides superior air flow, heat transfer and sweat evaporation
  • ODS technology mitigates angular acceleration forces to the head and brain and lessons severity of impact by increasing time to peak values by roughly double
  • Multi liner assembly will compress and shear omni directionally when subjected to impact, this capability provides significantly improved time management performance against both linear and angular acceleration energy demands
  • Comfort liner is fully removable and washable, it is made of genuine CoolMax anti-bacterial fabric
  • PC Halo improves durability of inner EPS liner and overall performance
  • Emergency Release Cheek Pads allow for easy and quick removal in the event of an accident
  • Sternum pad provides a progressive surface for added protection of the chin, jaw and sternum
  • Air flow Management system aids internal air circulation with 8 intake ports allowing fresh air to enter the helmet, 13 transfer ports to guide air flow throughout the helmet, and 4 aggressive exhaust ports
  • Air gap technology provides greater ventilation to accommodate various riding conditions
  • Rear Delta vents helps heat transfer by scavenging air and evacuates it by creating a low pressure venturi effect
  • Clavicle cut away reduces both mass and weight, while providing increased clavicle clearance without sacrificing strength
  • Roost Guard provides additional face protection in case of an impact
  • Large eyeport opening, with integrated traction posts, allows for maximum visibility not obstructing the rider's view whatsoever
  • Stainless steel screens protect all shell openings
  • Stainless steel D rings and chin strap rivets
  • Shear away visor screws
  • Fully compatible with all neck braces
  • 3 year limited manufacturer's warranty
  • Meets or exceeds DOT, ECE, and AU standards


Age & Gender
Model Name for Gear
Safety Certification
DOT ; ECE 22-05
Model Description
2017 Model

Item Numbers

Details Item Number Availability Store Pickup
Details:Orange/Charcoal  L Item #376-10-2957 Availability:In stock: Ready to shipStore Pickup:Available
Details:Orange/Charcoal  XL Item #376-10-2958 Availability:In stock: Ready to shipStore Pickup:Available
Details:Red/White  L Item #376-10-2997 Availability:In stock: Ready to shipStore Pickup:Available
Details:Red/White  XL Item #376-10-2998 Availability:In stock: Ready to shipStore Pickup:Available

6D Adult Helmets

Inches20 7/8 - 21 1/421 5/8 - 2222 1/5 - 22 3/422 3/4 - 23 1/423 5/8 - 2424 7/16 - 24 3/4
Metric53 - 5455 - 5657 - 5858 - 5960 - 6162 - 63

General Sizing information

If you are unsure about your size, compare your body measurements to the charts provided to determine the correct fit. These charts will give you a good idea of the size to order, but be sure to read special sizing information that may accompany an item description. Some merchandise dimensions may vary from the averages charted here.

Measure Your Head

Using a soft tape measure, wrap it around your head at the largest point starting about 1” (2.5cm) up from your eyebrows and around the largest part of the back of your head, and measure the number of your head circumference.

6D Limited Warranty

ATR-1 MOTO (3 Year)
ATS-1 STREET (3 Year)
ATB-1 BICYCLE (3 Year)
ATR-1Y YOUTH (3 Year)
ATB-1T TRAIL (1 Year)

We at 6D believe in the quality of our products and the care that goes into their manufacture. Our  Warranty program applies to every helmet we sell, in every market, and protects owners against defects during the projected life expectancy of the product (5 years from the date of purchase). The warranty does not cover matters beyond our control such as normal wear and tear, roost damage to the paint or helmet shell from rocks impacting the helmet or damage incurred through accident or abuse. The warranty also excludes paint fading due to sun exposure or general exposure to strong chemicals, vapors, such as race gas, cleaning solvents and others. The warranty explicitly excludes paint  fading for all florescent paint schemes due to the low tolerance of all known florescent paints and inks to sun exposure, and you should take care to reduce the amount of sun exposure when the helmet is not in use.

When To Replace a Helmet
The expected lifespan of a 6D helmet is 5 years of seasonal use, and decreases accordingly as the frequency of use increases. As you would expect, helmets used for competition such as motocross tend to have a much shorter life span. The more exposure a helmet endures to the elements, body oils, and perspiration, the faster it will wear out. In most cases the helmet's inner EPS liner will be the first component to show signs of wear and, as such, functions as a good indicator that a helmet should be replaced.

We at 6D recommend that any helmet suffering a significant impact to the shell be removed from use immediately, whether there is visible physical damage or not. A helmet is designed to deform in an accident in order to absorb the energy of the impact, and should never be reused afterwards for its ability to protect the rider further could be compromised.

6D Worldwide Limited Warranty
6D Helmets warrants to the original retail purchaser (“you”) that the 6D product for which you received this warranty is free from defects in material and workmanship for three years from the date of original retail purchase.

Warranty Limitations
This warranty is not transferable to a subsequent purchaser. 6D's sole obligation under this warranty is to either, at its discretion: (1) repair the claimed defect at no charge, (2) exchange the product with a product that is new or which is at least functionally equivalent to the original product, or (3) a credit amount, determined by 6D towards the purchase of a new product. 6D must be notified in writing of any claim under this warranty within 30 days of any claimed lack of conformity of the product.

The duration of any implied warranty or condition on this product shall be limited to the duration of the expressed warranty set forth above. In no event shall 6D be liable for any loss, inconvenience or damage, whether direct, incidental, consequential or otherwise, resulting from breach of any expressed or implied warranty or condition, or otherwise with respect to this product, except as set forth herein. Some states or countries do not allow limitation on how long an implied warranty lasts and some do not allow exclusions or limitations of incidental or consequential damages, so the above limitations or exclusions may not apply to you.

This warranty gives you specific legal rights, and you may also have other rights, which may vary, from location to location. This warranty will be interpreted pursuant to the laws of the United States. The original English language version/meaning of this warranty controls over all translations and 6D is not responsible for any errors in translation of this warranty or any product instructions.

No company or person (including employees or agents of 6D) are authorized to modify, enlarge or extend this warranty in any way or to make any other warranties, expressed or implied on behalf of 6D.  This warranty is not intended to confer any additional legal, jurisdictional or warranty rights to you other that those set forth herein or required by law. If any portion of this warranty is held to be invalid or unenforceable for any reason, such finding will not invalidate any other provision.

If your product packaging has a written warranty policy included that differs from the warranty policy posted at www.6Dhelmets.com/warranty, the warranty policy on our website is considered most current and will be controlling as of the time your warranty claim is made.


This warranty gives you specific legal rights and you may also have other rights, which vary from state to state



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Average Rating:
5 reviews
5 Reviews
My son loves this helmet... he has had others and doesn't like to wear any other brand.... As a Paramedic I have seen this product work and the science behind it works very well!

Pros: ODS
Cons: Very limited places sell this item
Definitely Yes
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Very light compared to my old Arai.
Awesome helmet I've always worn top of the line helmets and this one is right there with the best. Very comfy and light as well.

Pros: Light weight
Cons: Noisier than I'm used to
Definitely Yes
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Not returning this helmet
I've been in the market for a new helmet for about 2 years. I have been deciding between 4 to 6 brands Troy Lee, Shoei, Arai, Just1, Fly and Bell. During this past year I've been seeing these 6D logo helmets everywhere but was not aware of its advantages. Things that stick out for me that I like about 6D include it's shell size. Other helmets I've ordered below $300 amount were small for their size (TLD) meaning helmet manufacture did all they could to get weight down by shrinking the outer circumference of helmet but I think sacrificed on the proper amount of interior room. Interior padding was sacrificed which I feel hurt the comfort and small impact absorption. The items this 6D helmet includes is the titanium hardware, bigger/better shaped eye port for my Oakley & 100% goggles, weight is low but not the lightest I've held, graphics look sharp on this model, and fit/finish is nice. Also comes with a very nice included transport bag, extra visor bolts, nice goggle groove around shell, and the added grip section to keep goggle in place. Overall I feel one of the better helmets I've held and put on. Feels very close to Arai Pro 4 but Arai doesn't offer the protection that the ODS system does. Also with Arai helmet all the plastic vents in the back and on top with a small crash could be damaged and or ripped off and these pieces would most likely need to be replaced. As far as sizing, I was right between medium and large on their helmet sizing chart so this had me guessing which size to go with. I've had certain helmets that fit better on small side once they've broken in and others that needed to be larger after break in. I went for the large size with my head measuring 22 3/4". I think this choice worked out, but time will tell if it gets too loose with sweat taking off and on. Fits perfectly right now. Type of riding I do is all motocross, novice skill level 2014 YZ250F. Can't talk about noise, air venting or if visor tends to catch air down straights as I've not ridden with it yet. Still getting over an injury from pretty bad crash late 2015. Hope to be riding again soon.
Definitely Yes
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Great helmet
Helmet is lite and comfy
Definitely Yes
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Great Product
This product will be used when I ride my dirt bike. I like this product because it is very comfortable it lets a lot of air in so your head isn't burning up and it reliable. One thing I don't like about it is how expensive it is.
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5 Reviews