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As it is today, by the nature of EPS foam and the traditional way of constructing a helmet, manufacturers cannot adequately support both ends of the impact energy spectrum for off-road helmets. Most mountain bike helmets are certified to protect against high-impact, life-threatening crashes. As everyone would agree that this is a very important part of a helmet, it does however overlook the smaller, concussion-causing impacts. Although these smaller impacts transfer less energy to the rider’s head, a concussion can be caused by impacts ranging from 60-169g* in an adult male and can results in serious, long-term effects on the brain. Most modern Snell and ECE certified helmets transfer about 120g of energy to the rider’s head during a 4m/sec (8.95mph) impact, which is more than enough to cause a concussion.
6D’s revolutionary new ODS™ technology addresses these issues concerning low-impact crashes, providing protections over a broader range of energy transfer. ODS™ (Omni-Directional Suspension™) technology starts, like most helmets, with an EPS liner, however that is where the similarities end. The EPS liner on a 6D helmet is divided in two, separated by an Air-Gap which is supported by a series of elastomeric isolation dampers. These hourglass shaped elastomers (pictured below) provide omni-directional movement of the outer-shell during a crash, protecting against oblique impacts and angular acceleration demands; something no other helmets can offer.
|Inches||20 7/8 - 21 1/4||21 5/8 - 22||22 1/2 - 22 3/4||22 3/4 - 23 1/4|
Your helmet should fit snug and securely around the entire circumference of your head. Cheek padsshould befirm against your cheek bones and offer support from the helmet moving laterally.
Reviewed by 1 customer
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Comments about 6D Helmets 6D ATB-1 Attack Helmet:
This is by far the most comfortable DH mtb helmet i have owned. People may complain about the price but the technology has more than proven itself in the motorcycle industry already so i am a firm believer!
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Get free shipping with your $50 purchase today when you choose Standard Shipping at checkout. Please note this offer is only available to physical shipping addresses in the 48 continental United States (no PO Boxes), and oversize charges still apply on some heavy/large items
Get free Standard Shipping with your $50 purchase today! Just choose Standard Shipping during checkout.
Please note this offer is only available to physical shipping addresses in the 48 continental United States (no PO Boxes), and oversize charges still apply on some heavy/large items.