6D changed the helmet industry forever in 2013 with the introduction of the revolutionary ATR-1 off-road motorcycle helmet with its patented Omni-Directional Suspension (ODS) technology. 6D’s ODS technology has been studied, analyzed, and tested by some of the greatest minds in head protection and has proven itself effective all around the globe across multiple helmet platforms. The exceptional 6D ATR-1 revolutionized helmet design and kicked off a technology race to improve helmet safety performance.

Introducing the all new ATR-2; the next level in brain protection. The 6D ATR-2 is the most advanced energy management device ever manufactured for off-road motorcycle completion or recreational riding. Infused with the exceptional DNA of the original ODS technology, but evolved to a whole new level with high-tech materials and design influenced by our work inside the NFL’s Head Health Challenge III competition.

A HELMET WITHIN A HELMET. Advanced ODS.
-Replaceable Inner EPS Liner
-Multi-Impact Outer EPP Liner
-Progressive EPP Damping Towers
-Low-Friction Disks
-Isolation Dampers
-Increased ODS Displacement Travel (+30%)
-Improved Linear and Angular Acceleration Mitigation

WHAT’S DIFFERENT, AND WHY IS IT IMPORTANT?

The ATR-2, with advanced ODS, is evolved to provide improved performance in both linear and angular acceleration mitigation, and is also easily rebuildable for a potentially longer service life. This improves rider safety and saves you money.

MULTI-IMPACT OUTER EPP (Expanded Polypropelyene) LINER:
6D strategically positioned the multi-impact EPP outer liner against the helmet shell’s inner surface. An exceptional energy absorption material, the EPP was specifically engineered with islands of EPP “Damping Towers” to assist in progressive loading of the ODS system during impacts. The multi-impact capability of the EPP is one of the key elements that allows the rebuilding (provided the helmet’s shell is not compromised from the impact event) of the ATR-2 after a moderate to severe impact.

REPLACEABLE INNER EPS (Expanded Polystyrene) LINER:
The inner EPS liner is the first layer of defense and a very important component of the new advanced ODS design. It is effectively a helmet within a helmet. It has its own in-molded PVC (Polyvinyl Chloride) shell that serves many functions. It nests into the ODS carrier, provides strength and integrity to the EPS, and serves as a slippery surface to aide in reducing angular acceleration forces. The EPS is of a softer density than the EPP and is secured into the helmet with 4 locking pins that mate to the ODS carrier. It is also captured by the Chin Bar EPP which provides additional security.

LOW-FRICTION DISKS:
Multiple smooth disks top the damping towers to reduce friction under loading thereby assisting in angular acceleration mitigation.

ODS CARRIER:
The ODS carrier allowed the development of a modular helmet design that is easily rebuildable. The carrier also supports the isolation dampers and helps to manage the system materials during impact, compression, and shearing loads. ODS self-re-centers post impact.

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

NEW SAFETY FEATURES:
Two new safety elements have been engineered into the new ATR-2. The first, a structural “Brow Rib” provides incremental strength to the upper eyeport area providing additional integrity to the shell nearest the eyeport opening. Additionally, a strategically designed “Cervical Protection Zone” nests inside the lower rear base of the helmet. This area is designed to provide a more compliant crushable region in the event the helmet is pushed down and back into the neck and spine during an accident.

ELASTOMERIC ISOLATION DAMPERS:
An array of Isolation Dampers connect the ODS carrier to the outer EPP liner and work in unison to isolate impact energy from the brain. The elastic properties of the dampers, combined with their unique shape provide a progressive spring rate that assists in managing low-threshold energy. The hour glass shape and elastic property also work to manage the 3-dimensional displacement of the inner liner.

OPTIMIZED SHELL DESIGN:
The 6D concept of ‘Optimized Shell Design’ does not define one element, but a system where multiple materials work together, in concert, to provide greater protection and energy management. The shell must have the structural integrity to prevent penetration, but it should not be overly stiff or rigid either. An overly stiff and rigid shell can seriously compromise the helmet's energy management potential.

EPP LINED CHINBAR:
Thicker lower density EPP lined chinbar is more durable and provides more energy absorbing material for side impacts to the jaw area. It also includes a polyurethane over-molded sternum pad.

LOW-THRESHOLD ENERGY
Low Velocity Impacts are Far and Away the Most Common Type of Off-Road Accidents.

Medical research has provided alarming conclusions surrounding the causes, severity, and long-term effects of concussions. Even seemingly minor concussions may have much more serious long-term effects on the brain. No other helmet company cared about low-threshold energy transfer before 6D brought the issue to light in 2013. This is the most critical performance range of helmets and covers all impact velocities below the certification standard's requirements, for both linear and angular accelerations.
Low-Threshold Energy is the most concerning problem facing the athlete today. 6D’s Omni-Directional Suspension (ODS) starts working the instant any force is applied to the shell. It's suspended inner liner travels and shears under crash impact loading thereby reducing energy transfer to the brain.

ANGULAR ACCELERATION
Angular Acceleration Force is the Primary Cause of Concussion.

Angular acceleration (rotational force) is generated from oblique angle impacts to the helmet surface resulting in shearing, stretching, and tearing, of the soft tissues within the brain.
The medical community has determined that angular acceleration is the primary cause of concussion, traumatic brain injury and worse.
Laboratory testing at Wayne State University (Experiments conducted by David C. Viano, PhD, Bioengineering Center, Wayne State University) has proven that a helmeted head sustained the same degree of angular acceleration as the un-helmeted head when subjected to identical impacts. One of the major benefit features of Omni-Directional Suspension (ODS) is that it effectively “uncouples” that relationship, allowing the shell and outer liner to shear independently to the inner layer and the head form.

BROAD-RANGE PROTECTION
The Most Compliant Energy Management Solution Available.

The new ATR-2, with its advanced ODS system, elevates safety with the next level of energy management performance.

TIME-TO-PEAK (TTP)
Time is Critical in Reducing Energy Transfer to the Brain.

Time-To-Peak (TTP) is the measurement of time (in milliseconds) it takes the energy of an impact to reach maximum (peak) G force. Increased 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 be.
6D’s advanced ODS technology buys time.

THE NEXT LEVEL
ATR-2 vs. ATR-1.

The new ATR-2 with advanced ODS provides improvements in performance compared to the ATR-1 across a high percentage of impact scenarios and injury metrics. Increased displacement travel of the inner liner, improved material compositions, and the Advanced ODS system result in improved energy mitigation at low, mid, and high velocity impacts for both linear and angular accelerations.

THE NEW ATR-2.
Features.

Rebuildable Advanced ODS System:
-Replaceable Inner EPS Liner
-Multi-Impact Outer EPP Liner (provided the helmet’s shell is not compromised from the impact event)
-Progressive EPP Damping Towers
-Low-Friction Disks
-Isolation Dampers
-Increased ODS Displacement Travel (+30%)
-Improved Linear and Angular Acceleration Mitigation

Shell:
-Optimized light weight Tri-Composite Shell - 3 Shell Sizes
-Cervical Protection Zone at the lower rear shell area
-Brow Rib increases shell integrity above the eyeport
-Clavicle Cut-Away
-9 Intake Ports and 6 Exhaust Ports work in unison with the Air Gap Ventilation System

Helmet Features:
-Removable, Washable Comfort Liner features Genuine Dri-Lex® anti-bacterial fabric
-Emergency Quick-Release Cheek Pads
-PU-Over Molded EPP Lined Chin Bar includes 6D’s exclusive Sternum Pad
-Goggle Band integrated shell recess at the eyeport area improves goggle fit and seal
-Shear-Away Visor Screws
-Nose Guard provides improved roost protection
-Titanium D-Rings
-Lighter overall weight +/- 1480 grams/ 3.26 lbs. (Size M)
-Exceeds DOT, ECE, AC and ASTM Standards
-3-Year Limited Warranty

World Wide Patents: (Helmet OmniDirectional Energy Management Systems)
-United States US 8,955,169 B2 / US 9,820,525 B2
-Europe EP 2 672 853 B1
-China ZL 201280017579.1
-Other Patents Pending

DEDICATED TO THE RELENTLESS PURSUIT OF BRAIN PROTECTION.

Dimensional weight listed

6D ATR-2 Circuit Red/White/Blue Helmet
Produced by 6D of USA