360 ROTATIONAL VIEW
Pinkbike - Alterra Review
"Lightweight full-face helmets all seem to have plenty of cut-outs, but there’s something special about the way the air flows into the Alterra, particularly around the forehead and temples. In fact, I’d argue that it’s better than some half-shell helmets." - Matt Beer
VItal MTB - Alterra Review
"We were big fans of 6D's ATB-2T trail helmet, but moving forward, the Alterra will be our go-to for most rides, as you don't have to sacrifice comfort to receive extra protection." - Shawn Spomer
Loam Wolf - ALterra Review
"Upon unboxing the 6D Alterra full face, I was shocked at how light it felt in my hands. When first putting it on, that lack of weight was very apparent." - Cole Gregg
KEY FEATURES
Nik Nestoroff | ARI Factory racing
Segment Military green | Solid Sand
Charlie Harrison | Ari Factory Racing
Segment White Green
Omni-Directional Suspension™
Only 6D has Omni-Directional Suspension™ The enhanced system is more efficient, lighter, and freer to do its job, effectively mitigating energy transfer from crash impacts.
Two Piece Shell Design
The carbon fiber and polycarbonate two-piece shell, featuring a carbon fiber chinbar and internal skeleton, provides overall structural integrity and enhances the chinbar's durability in high-velocity impacts.
All Day Comfort
At just 710g (M/L), the Alterra enduro helmet is one of the lightest on the market, offering enhanced performance without compromising impact protection, structural integrity, or build quality.
ODS™ TECHNICAL FEATURES
MULTI-IMPACT INNER EPP LINER
The Multi-Impact Inner EPP Liner features a softer, lower-density construction with integrated "damping towers" to progressively absorb and manage forces across a broad range of impact velocities, providing enhanced protection for riders.
OUTER EPS LINER
The outer EPS liner is a crucial component of the ODS™ design, helping to mitigate energy in the most severe impacts with its durable foam construction.
Air-Gap™ ventilation system with Ram Air Direct-to-Brow Cooling
The airflow system features direct channels that efficiently direct cool air to the brow area and throughout the helmet, ensuring optimal ventilation and temperature regulation during use.
Two-Piece Polycarbonate and 3K Carbon Shell
The first-of-its-kind carbon fiber and polycarbonate two-piece shell features a carbon fiber chinbar. This innovative combination of materials enhances impact resistance and structural integrity, making the chinbar more resilient to damage during high-impact situations while maintaining a lightweight construction.
ODS™ Damping tower slip discs
ODS™ Damping Tower Slip Discs are low-friction discs that allow the system to smoothly slip, increasing angular acceleration performance. This design enhances the helmet's ability to manage rotational impacts, improving protection by efficiently absorbing and mitigating angular forces.
EPP CHINBAR
The EPP lined chinbar is thicker and has a lower density, offering increased durability and enhanced energy absorption for side impacts to the jaw area. It is equipped with a polyurethane over-molded sternum pad.
Carbon Fiber Internal Roll Cage
The carbon fiber roll cage is molded into the EPS liner, providing enhanced structural integrity throughout the entire helmet without compromising weight. This innovative design strengthens the helmet’s overall durability and impact resistance, ensuring superior protection while keeping the helmet lightweight and comfortable for the rider.