Arai created the first original adventure helmet and over the years they’ve refined the design into their current XD4, a premium off-road and street use option that’s widely accepted as one of the best dual sport helmets available in regards to both safety and functionality.
Built on a composite fiberglass shell that has an intermediate head shape, DOT and Snell ratings, and only 3.6 pounds of weight, the XD4 focuses on providing an excellent base to build features into. Features include the flip down visor with its integrated vent ports and the adjustable peak, both of which are entirely removable. And with a high quality shell maximizing safety, Arai is able to pack more comfort lining and padding in places that would otherwise be taken up by safety oriented materials.
The XD4 has plenty of intake ports (with many of the ports on the chin bar being dedicated open/non-closing) and exhaust ports so air stays fresh when you’re working hard on the bike, and the dual chimney vents have a unique lever actuation that’s really convenient.
With a large amount of safety, versatility, and comfort the Arai XD4 Motorcycle Helmet ends up being a nearly perfect 50/50 helmet for adventure riders that split their time equally between dirt and asphalt.
Customizable comfort/fit with peel away foam layers in cheek pads
Excellent helmet for 50% road riding and 50% off-road riding
Intermediate oval head shape
High-flow peak channels air directly into the front vents.
Twin-cam Shield Pivot System allows the face shield to operate fully under a peak that can be lowered for better aerodynamics.
Fully removable/replaceable and washable liner.
Chimney vents are easily opened and closed using unique lever mechanism
4 top vents. Dual Intake/Dual Exhaust Ventilation - dual 1/C top intake vent and Double Delta bridged exhaust vents designed to draw significant volumes of air from helmet interior.
CLC (Complex Laminate Construction) shell - fiberglass composite is stronger and lighter - allows use of softer, less-dense liner materials inside for increased rider comfort.
Efficient chinbar vent (with interior and exterior controls) flows fresh air to the mouth area or across the shield interior to help prevent fogging.
Large chinbar side exhaust vents draw out additional hot air.
Meets or exceeds Snell and D.O.T. standards.
For proper fit and size measure the circumference of your head 1" above your eyebrows and around the largest portion of the back of your head.
20 7/8" – 21 1/4" -------- X-Small
21 5/8" - 22" ------------ Small
22 1/2" - 22 7/8" -------- Medium
23 1/4" - 23 5/8" -------- Large
24" - 24 3/8" ------------ X-Large
24 3/4" - 25 1/8" -------- XX-Large