First Look: 6D Helmets ATB-1T

6D has been pushing the envelope in the category of noggin safety for action sports since 2011 with the introduction of their exclusive ODS (Omni-Directional Suspension) technology in their helmets. Last year, we had the opportunity to test their first downhill-specific offering, the ATB-1 full face. After being thoroughly impressed with the level of safety and innovation that went into the ATB-1, when we spotted a prototype three-quarter lid during last year's Interbike, we were happy to see the technology trickle down to a helmet with a broader range of potential users. That said, we finally got the official word from 6D that the new ATB-1T three-quarter coverage MTB helmet is now available. Check out the details and PR from 6D, below.

From 6D:

Brea, Ca – 6D Helmets LLC, the worldwide helmet technology leader is proud to announce the arrival of their new ATB-1T trail helmet. The ATB-1T is the world’s first ¾ coverage MTB helmet utilizing 6D’s revolutionary Omni-Directional Suspension™ (ODS™) technology. An engineering masterpiece, the ATB-1T has been painstakingly crafted to deliver all of the exceptional benefits of ODS into a lightweight and compact trail helmet. The ATB-1T reduces the transfer of angular acceleration force by means of its 3-dimensional displacement and shearing capability of the ODS system when subject to impacts. Low-threshold energy accelerations are also dramatically reduced, providing a more forgiving helmet over a much broader range of energy demands. The ATB-1T is designed and suitable for all MTB riding activities except downhill.
The ATB-1T is available in 6 distinct color options in sizes Medium-Large (55-59cm). Sizes XS-Small and XL-XXL will be available early summer.
The ATB-1T is certified to exceed CPSC 16CFR 1203 and EN 1078 standards.

Available Colors

Matte Black/Matte Yellow
Matte Grey/Gloss White
Matte Black
Gloss Blue/Matte Black
Gloss Neon Orange/Matte Grey
Matte White

6D ATB-1T Helmet Features

Patented Omni-Directional Suspension™ (ODS™) technology reduces angular acceleration force and dramatically improves low-threshold energy compliance
Polycarbonate shell
3 Shell sizes – XS - XXL
Modular ODS carrier system
Replaceable inner EPS* (Contact 6D Helmets for details)
Exceptional flow-through ventilation
Ratcheting retention fit system
Fidlock™ chinstrap closure
Moisture wicking / washable / anti-bacterial comfort liner
Adjustable visor
Eyewear and goggle compatible
Weight: 475 grams +/ - 50 grams (ours tested to 500 grams on the dot)
1-year limited warranty 
MSRP - $269.95

Note the two separate layers of EPS foam.

At the core of 6D's new helmet is their unique ODS system. The system works by utilizing two separate layers of EPS foam with small air gap between them. The two layers are connected by an array of elastomeric isolation dampers. These hourglass-shaped dampers work to slow the impact time, and thus the energy transferred to the head in the event of a crash. 6D has found the system to be effective for a wide range of forces, including low, medium and high velocity impacts for both linear and angular accelerations.

An inside look at the two layers apart and the damper system that joins them.

Packing all that tech into a trail helmet without it making you look like a bobble-head was tough, but 6D said that creating a helmet that wasn't big and bulky, yet exceeds several safety stands was important to them. We think they pulled it off nicely. The ATB-1T is comparable in size to some of the other leading three-quarter coverage helmets currently on the market.

A comparison in size between the ATB-1T and two other 3/4 coverage helmets.

6D has also made use of a Fidlock™ closure system to secure the chinstrap, replacing the traditional snap-buckle or D-ring systems. The Fidlock™ system automatically closes (from almost any direction) by the use of magnets, but will only release when you laterally slide the two sides apart. At first, we were a bit confused by the system but after looking at it, it's incredibly simple and easy to use, as well as extremely fast to take on and off.

Whether you just ride with glasses or if goggles are your thing, 6D made sure the ATB-1T fits comfortably. The helmet is nicely shaped to accommodate a goggle strap and has enough room around the ears to make room for your glasses.