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DT-X Fit


No one pays more attention to the subtle variations and infinite possibilities of the human head shape than Arai. Why? Because it’s the secret to getting the best comfort and fit.

So for more than three decades, Arai has pioneered different shapes – and even different proportions within those shapes – in our various helmet models, working to offer a better fit for more people.

The DT-X has Arai's INTERMEDIATE OVAL (IO) interior fit shape.*

*A Helmet needs to be tried on in order to determine a proper fit.

DT-X Features

Antimicrobal Interior with 5mm Peel-Away Cheek Pads and Temple Pads

The DT-X interior is made with an odor-reducing and dirt-resisting antimicrobial material. The new neck roll, which wraps comfortably around the rider´s neck, reduces wind noise while also improving ease of ingress and egress. The addition of the FCS cheek pad makes putting on and removing the helmet easier while maintaining comfort around the lower jaw. Both the comfort headliner and cheek pads have 5mm peel-away layers for microfitting. The ear pockets have molded recesses for easier intercom speaker installation.

PB-cLc Shell

The DT-X features the PB-cLc (Peripheral Belt - complex Laminate construction) shell born from Arai´s exclusive F-1 helmet technology, made from the layering of various proprietary materials, bonded with specially-developed adhesives. The upper edge of the eye port is reinforced with the Peripheral Belt, which is custom woven in house using proprietary Super Fibers, to increase strength and help redirect impact energy laterally. This makes for a more compact shell. In shell creation, resin serves to bind material to material. Arai has long developed exclusive resins to create stronger and lighter shells, and has recently developed a new ‘Z Mixture’ resin. It increases the adhesion ability and strengthens the shell with less resin used, allowing for further weight reduction of the helmet.

VAS Shield System

The shield-mounting mechanism features a new Variable Axis System (VAS) pivot operation feature. The VAS pivot cover is now smaller and lower than the previous design, yielding an average 24mm more area above the cover. As a result the shell is now smoother along the Snell test line in the temple area, thus increasing the helmet’s ability to glance off objects during an impact.

Dual Flow Ventilation System

The upper front vent is Arai´s newest design, incorporating both an intake and exhaust port, creating a “dual flow” effect and is therefore aptly named the Dual Flow Duct. Air enters the front intake of the duct and draws out hot exhaust air from the rear. Toward the back, the newly styled rear Duct Flow Spoiler also incorporates a dual flow system for great airflow. The center duct hole takes in air and uses the low pressure from the left and right duct slots to draw out hot air. This new ventilation system works well in many riding positions, allowing the front and rear vents to let cool air enter from the front regardless of the rider´s head angle.


Keeping with the Round & Smooth egg-shaped form, the Hyper Ridge, along the lower edge of the shell increases shell strength & protection around the bottom opening - managing energy migration laterally. And the new side exhaust vents, sculpted into the Hyper Ridge design, result in a more efficient and smoother airflow. The DT-X utilizes Arai´s proprietary multi-density one-piece EPS liner, specifically tuned to each area of the helmet, to maximize performance. Shell shape & strength, combined with the tuned EPS liner, minimizes helmet size & weight - improving rider comfort.

Upgrade Options

*VAS Pro Shade System shield. With three positions: down, mid and up. While down the Pro Shade blocks the majority of sunlight. In the Mid and Up position the Pro Shade acts like a peak or brim of a hat. *Pinlock anti-fog lens for all weather touring. *ES Chin Curtain redirects airflow under the cheek pads creating negative air pressure, reducing the buildup of breath inside the helmet. It also decreases wind noise by reducing air turbulance under the chin.


*optional not included