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DOWNHILL

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DESIGNED WITH THE SINGULAR GOAL OF BUILDING THE SAFEST, MOST EFFECTIVE BICYCLE HELMET.

Incorporating all of the benefits of Omni-Directional Suspension technology this is the most advanced full-face helmet available in the marketplace today. Each ATB-1 incorporates a state-of-the-art 3K carbon fiber shell mated to 6D’s exclusive dual-layered ODS EPS protective liner. This combination of materials and technology provides the best possible protection against angular acceleration and low-threshold energy transfer from crash impact. The ATB-1 is the gold-standard of Down Hill, Enduro, and BMX competition helmets and exceeds the ASTM F-1952-10, and CPSC 16 CFR1203 safety standards (US), and EN1078 (Europe).

  • BEST TECHNOLOGY
  •  BEST PERFORMANCE
  •  BEST PROTECTION

FEATURES

• PATENTED ODS (Omni-Directional Suspension) Technology

• SHELL – A proprietary blend of advanced aerospace carbon fiber, composite fiberglass, and Kevlar

• NEW PC HALO – Improves durability of inner EPS liner and overall performance

• Genuine CoolMax™anti-bacterial fabric comfort liner

• EMERGENCY RELEASE CHEEK PADS

• SHEAR-AWAY VISOR SCREWS

• ROOST GUARD 

• CLAVICAL CUT-AWAY 

• STERNUM PAD – Provides added protection of the chin, jaw and sternum

• EXCEEDS ASTM F-1952-10 and CPSC 16CRF 1203 standards

• 3-YEAR LIMITED WARRANTY

ONLY 6D HAS OMNI-DIRECTIONAL SUSPENSION 

6D’s revolutionary patented Omni-Directional Suspension (ODS) technology represents a fully active, in-helmet suspension and kinetic energy management system. Engineered to uncouple the helmet’s exterior shell from the inner EPS liner, the system effectively mitigates energy transfer to the head and brain of the rider during any given accident or impact event. The ODS system is comprised of 2 EPS liners separated by an array of elastomeric isolation dampers that allow the system to sheer and displace 3-dimensionally when subjected to impact.

Omni-Directional Suspension functions over a much broader range of energy demands, including LOW, MID and HIGH-Velocity impacts for both Angular and Linear accelerations when compared to other competing helmets, and helmet technologies.

There is simply no other helmet, or helmet technology that can provide the exceptional energy management benefits of Omni-Directional Suspension.

Elastomeric Isolation Damper

This damper is the heart and soul of 6D’s exclusive Omni-Directional Suspension technology. An array of dampers work in unison with the dual EPS liners to isolate impact energy from the brain. The elastic properties of the dampers, combined with their unique ‘hourglass’ shape provide a progressive spring rate that manages low and mid-velocity accelerations, while simultaneously allowing the inner EPS  liner to displace and shear in 3-dimensional space. This omni-directional displacement capability of the EPS liners provides ‘six degrees of freedom’, which became the inspiration for our company name; ‘6D Helmets.’

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SUPERIOR ANGULAR ACCELERATION MITIGATION

ANGULAR ACCELERATION (ROTATIONAL) is generated from oblique angle impacts to the helmet’s surface.  The result of this type of impact, and subsequent energy transfer is shearing, tearing, compression, and rotation of the brain within the skull.  The medical community has determined that angular acceleration is the primary cause of concussion, mild-traumatic brain injury (MTBI), and traumatic brain injury (TBI).

Tests conducted by Dr. David C. Viano of  the Bioengineering Center at Wayne State University concluded that a helmeted head sustained the same degree of angular acceleration as the un-helmeted head when subjected to identical impacts.  So, if angular acceleration is a major cause of concussion (or worse), how is the brain protected by conventional helmet design? Unfortunately, in respect to angular acceleration energy, it is not.

http://www.tulane.edu/PDF

By uncoupling the helmet’s inner liner assembly from the outer liner and shell, 6D’s revolutionary Omni-Directional Suspension (ODS) system effectively mitigates the transfer of angular acceleration to the head and brain of the rider during any impact event.

atr-angular-6ms-graph

6D’s proprietary ODS technology dramatically reduces the transfer of angular acceleration to the head form compared to competitors.

SUPERIOR LOW-SPEED IMPACT PERFORMANCE

Recent medical research has provided alarming conclusions surrounding the causes, severity, and long-term effects of concussions and brain injury. We know that seemingly minor concussions may have much more serious long-term effects on the brain including the onset of CTE (Chronic Traumatic Encephalopathy), a progressive degenerative brain disease. Concussions can occur from impacts in the lower range of 60 G’s in adult males, and even less in women and children.

To meet the extreme test velocity requirements of Snell and ECE certification testing, most conventional helmets are engineered too stiff to effectively absorb energy from low and mid-velocity impacts. The vast majority of impacts in real-world accidents are what we qualify as LOW-THRESHOLD ENERGY impacts. These are impacts well below the pass/fail certification velocities of any given standard, but at or above the velocity required to sustain a concussion or brain injury. The isolation dampers within 6D’s exclusive Omni-Directional Suspension (ODS) system effectively mitigate low-threshold energy accelerations.   

In this critical area of energy management, the 6D ATB-1 pays significant dividends when compared to conventional helmet designs. 6D’s proprietary ODS system starts working the instant any force is applied to the shell, making the helmet much more compliant and functional over the highest percentage of real world crash impacts. ODS achieves this benefit without compromise of its high-velocity impact performance as well. 

Suspension For Your Head.

This graph shows the significant benefits of ODS when compared to competitive helmets.

SUPERIOR HIGH-SPEED IMPACT PERFORMANCE

Across the entire range of impact velocities the 6D ATB-1 helmet with Omni-Directional Suspension (ODS) technology consistently outperforms the competition.  6D engineers meticulously evaluate the shell design, shell layup, damper array, damper durometer, and EPS densities to provide the best possible matrix of the materials for superior impact management performance. No other system or technology is more technically advanced or capable of reducing energy transfer to the brain.

Superior Brain Protection.

TIME IS EVERYTHING

TIME-TO-PEAK (TTP) is the measurement of time (in milliseconds) it takes the energy of an impact to reach maximum (peak) G force.  Deceleration time is the single most beneficial component of reducing the severity and magnitude of any impact.  The more time, the less severe the energy transfer will become.  6D’s proprietary ODS technology buys time, in fact more than doubles the TTP in most impacts below 6m/s! The really cool news here is the significant reduction in energy transfer that comes simply with time.

SUPERIOR TEST PERFORMANCE

The exceptional test results represented on this website are the actual test data generated from hours of testing the 6D helmet against current model Snell, ECE and DOT certified helmets in a fully-independent, third party laboratory testing facility; Dynamic Research, located in Torrance, California is a recognized as a leader in helmet testing and evaluation and is a pioneer in measuring and evaluating Angular Acceleration.

This testing confirms that Omni-Directional Suspension (ODS) significantly reduces energy transfer to the head and brain during crash impact.

SIZING

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XS

53-54cm

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S

55-56cm

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M

57-58cm

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L

58-59cm

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