Sets a new standard for full face enduro helmets, combining a lightweight design, effective ventilation, and all-day comfort without compromise. Featuring Omni-Directional Suspension (ODS) for advanced impact protection, an in-molded carbon fiber chin bar, and optimized airflow, it delivers full coverage without the bulk . Certified for E-bike and Downhill riding . Meets or exceeds , EN1078, AU/NZS 2063, 8776 E-Bike standards, as well as F1952 (Downhill) and F2032 (BMX) . Travel bag and pad sets included . Weight: 710gItem Specifications: Shell, Full Face, Size (cm), 59-63, Size, XL/XXL, Color, Segment Military Green, Model Name, Alterra, Visor, Yes,

6D Helmets Alterra Full Face Helmet XL/XXL Segment Military Green

Reference Number: 1SE5WX

Experience Industry-Leading Protection and Comfort with the 6D Helmets Alterra Helmet, Segment Military Green - XL/XXL

Elevate your enduro, downhill, and e-bike rides with the 6D Helmets Alterra Helmet, expertly engineered to deliver superior safety, unmatched comfort, and cutting-edge performance. Designed for riders who demand both style and functionality, this full-face helmet blends advanced materials with innovative technology to set a new standard in motorcycle and mountain biking safety gear.

Materials & Construction:

Crafted with a durable in-molded carbon fiber chin bar, the Alterra Helmet offers exceptional strength while maintaining a lightweight profile-total weight is just 710 grams for prolonged comfort during all-day rides. The shell features a robust full-face design that provides comprehensive coverage, optimized for high-impact protection.

Performance & Engineering:

Equipped with 6D's renowned Omni-Directional Suspension (ODS) technology, this helmet absorbs and disperses impact forces from all directions-maximizing rider safety and reducing the risk of injury. The helmet's design emphasizes effective ventilation through multiple airflow channels, ensuring optimal temperature regulation and reduced fatigue even during intense rides.

Components & Technology:

Certified for E-bike, downhill, BMX, and general cycling disciplines (meeting or exceeding , EN1078, AU/NZS 2063, 8776 E-Bike standards, F1952 for downhill, and F2032 for BMX), the Alterra Helmet guarantees compliance with rigorous safety regulations. An integrated visor provides shade and enhances visibility, while included pad sets and a travel bag facilitate easy maintenance and portability.

Style & Use Case:

Available in a striking Segment Military Green, this helmet combines aggressive style with practical features, making it ideal for enduro and downhill riders seeking high-impact protection without sacrificing aesthetics. The XL/XXL sizing ensures a comfortable fit for larger heads (59-63 cm circumference), making it suitable for serious bikers and e-bike enthusiasts alike. Perfect for technical trail riding, downhill racing, and intense e-bike adventures, the Alterra Helmet offers all-around versatility and reliability.

Innovative & Differentiating Features:

- Omni-Directional Suspension (ODS) for superior impact absorption

- In-molded carbon fiber chin bar for lightweight durability

- Certified to multiple safety standards (, EN1078,)

- Effective airflow system for enhanced ventilation

- Includes ergonomic padding and a convenient travel bag

Upgrade your cycling safety gear today with the 6D Helmets Alterra Helmet, Segment Military Green - the ultimate choice for serious riders who refuse to compromise on protection, comfort, and style.

  • Lightweight full-face enduro helmet crafted with high-grade in-molded carbon fiber chin bar for exceptional durability and impact resistance.
  • Engineered with Omni-Directional Suspension (ODS) technology to provide superior impact absorption and distributed protection across all impact vectors, enhancing rider safety.
  • Designed with optimal ventilation channels and airflow management to keep you cool and comfortable during intense all-day rides, reducing heat buildup and fatigue.
  • Built for versatility and rigorous performance, this helmet is certified for E-bike, downhill, BMX, and general mountain biking standards (, EN1078, F1952, F2032, AU/NZS 2063, 8776 E-Bike).
  • Includes a convenient travel bag and padding sets, ensuring easy transport and customized fit, making it the ultimate choice for serious riders seeking style, safety, and innovation in a modern mountain biking helmet.
Item Specifications
ShellFull Face
Size (cm)59-63
SizeXL/XXL
ColorSegment Military Green
Model NameAlterra
VisorYes

Why 365 Cycles?

365 Cycles is an Authorized 6D Helmets Dealer, and we offer the Full 6D Helmets Warranty!

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365 Cycles delivers all your cycling needs fast! We don't waste time preparing your order. Our priority is to serve our customers first and foremost. If you need help picking the right product, have questions about bike component compatibility, or just want to geek out about bikes we are here 7 days a week! Simply put, we are bike experts from dirt to tarmac and want to make sure you get the full 365 Cycles experience when you shop with us.

At 365 Cycles our mission is to simplify the shopping experience. We want to get you the right product in a quick time frame and be here if you need help with questions, warranty, friend to talk to, etc.

We’re dedicated to building lasting relationships with our customers, communities, and team members. We combine the knowledge and service of a traditional bicycle shop with the convenience of shopping in your own home.





Shipping & Handling

Most orders placed during the workweek before 1:30 pm EST ship the same day, but in rare cases (peak season/holiday periods) handling time can take up to 48 hours. If you have questions regarding shipping estimates, please let us know prior to placing your order. There is a direct signature requirement for all orders over $500.

Please allow 1-2 business days for your order tracking to update.

  • Cut off for SAME DAY SHIPPING- 1:30 pm EST Monday - Friday
  • Friday afternoon -Sunday orders ship the following Monday
  • Due to carrier restrictions orders shipped to: PO Box, HI, AK, & PR 365 Cycles may use a comparable service to what was selected.

Combined Shipping Discounts

To offer customers savings on shipping, we offer discounts when shipping multiple items from our store. We cannot issue refunds on shipping once an order is finalized so please follow the 5 steps below and ask if you are having trouble with the discount before you make a purchase.

  1. Be sure you are using the US site: https://www.ebay.com
  2. Select Add to Cart (instead of Buy It Now) with items from our store 365Cycles
  3. Click on Proceed to Checkout. On the checkout page, the shipping service on each line item needs to match
  4. Compare First Class vs Priority as sometimes Priority can be cheaper and it gets to you faster!
  5. You’ll need to change the shipping method to Priority on every item in your cart before the rate can be calculated.

Returns

365 Cycles offers returns for 30 days on new items in their original, intact packaging. Return shipping for ALL orders are to be paid by the buyer. Please be sure to read our return policy entirely and if you have any questions, please contact Customer Service.

Full refunds are issued on items that are brand new and we are able to resell as new. 365 Cycles reserves the right to deny returns that are outside of policy including, but not limited to, used items, items missing original packaging, items with damaged manufacturer packaging, or international orders. Return orders must be shipped in a box or bubble mailer. Items shipped without an outer box will incur a restocking fee. You will be contacted through eBay if your return is ineligible for a full refund.

Returns must be initiated within 30 days from purchase date through your Purchase History under My eBay.

If we make an error in shipping, please contact us -- we will ship out the correct item and provide a free prepaid return label as quickly as possible!

Exchanges

If you need to exchange your order, the fastest and easiest way to do this is to reorder. We will ship your new order immediately and, in the meantime, please initiate a return through eBay on the original item and return it. We will refund for the returned item once it is received back.



HLMT8291 .

Company Details

365 Cycles
1180 Enterprise Rd
East Petersburg, PA 17520
United States

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