6D ATR-2 Alpha Helmet

Shape:Intermediate Oval

Weight:3.31 lbs.

The 6D ATR-2 Helmet is the rebuildable, most advanced energy management device ever manufactured for off-road motorcyclists. Infused with technology found nowhere else, the 6D ATR-2 Helmet’s Omni-Directional System is built around elastomeric dampers that allow the innerEPS linerExpanded polystyrene (EPS) is a rigid, energy absorbing foam. In the helmet industry, EPS is the most common means of energy management to protect the brain. Generic EPS is often referred to as “Styrofoam” (a trademarked name owned by the Dow Chemical Company). Premium helmet producers utilize multi-density EPS liners to balance comfort, safety and performance.to move independently from the denser, outer EPP (expanded polypropylene) foam layer. 6D refined this ODS technology while collaborating with the NFL during the Head Health Challenge III competition – a four-year study that concluded in 2017. All this technology takes place in a lightweight package that is housed in a tri-composite shell, split over three shell sizes for a slim profile.

With the ATR-2 Helmet, the inner EPS layer – the sacrificial defense against impact – is carried by these ODS dampers. Most importantly, this system mitigates rotational forces to the brain. But this unique design also allows this inner layer to be replaced after an impact. The unique design is effectively a helmet within a helmet. The outer EPP foam is designed to absorb force and then rebound after an impact; its structure does not permanently deform as expanded polystyrene does. As long as the exterior shell is not cracked or pierced, the helmet can be shipped to 6D and inner EPS replaced.

Unlike conventional helmets, this is not a one crash and done helmet. Unlike other helmets, 6D’s industry leading innovations make the ATR-2 the most impact compliant lid on the market.

• Replaceable inner EPS liner
• Multi-Impact outer EPP liner
• Progressive EPP Damping Towers
• Low-Friction disks
• Isolation dampers
• Increased ODS (Omni-Directional SuspensionOmni-Directional Suspension (ODS) is an active, in-helmet energy management system. The system reduces energy transfer to the brain over a wider range of energy demands, including low, mid, and high-velocity impacts for both linear and angular acceleration. ODS performance is achieved through the use of a suspended dual-liner assembly that can displace and shear in any direction upon impact. Not only has ODS received helmet safety awards from the NFL, but ODS helmets can also be rebuilt / repaired after impact by 6D.) displacement travel (+30%)
• Improved linear and angular acceleration mitigation
• Optimized lightweight 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
• 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
• Exceeds DOT, ECE, AC and ASTM Standards

Specifications

Part Numbers Specification