Arai – XD-4 Solid Adventure Helmet

Complex Fibre Laminate (CFL) employs special fibre layers bonded by unique resins formulated by Arai, producing an extremely high fibre to low resin ratio. This carefully managed construction delivers strength, structural integrity and impact flexibility which allows the rounded outer shell to do its main job – deflect, absorb and disperse impact energy over the widest possible area.

Easy to clean diffusers create a strong venture vacuum at the rear. Dual intake for increased airflow and lower noise level. Under-peak air intake collects and directs cool air into the helmet. Closable chin vent controls the airflow to the chin area. Inner chin vent shutter prevents debris coming into the helmet industy riding conditions. Brow ventilation, lower side vents and neck roll exhaust.

Designed for increased airflow and lower noise level, guiding fresh, cool air into the interior.

Fresh air can enter directly to the forehead area without the need for holes in this critical area of the shell and impact absorbing liner. For specific models the ventilation is extended to the temple area.

Three-position chin vent helps in demisting the visor and offering fresh, cool air to the rider.

Open and close the chin bar vents from the inside to prevent debris coming into the helmet in dusty riding conditions.

To enhance hot-air extraction from the interior. Increases the ventilation effect at the lower part of the helmet.

Creates a tremendous amount of venturi vacuum at the rear. Can be easily removed (for cleaning) or replacement.

Produce low pressure behind the rear vent for better hot air extraction. Integrated in the shell for better aerodynamics, reduce wind noise and prevent buffeting at speed. Inside, a small foam dam helps to absorb and diminish excessive noise, without reducing ventilation performance.

Helps minimize wind noise and also aids with the extraction of hot air from the face area. Provides additional deflection of road debris away from neck. Depending on the model the Chin Spoiler is retractable.

Effectively prevents misting and fogging of the visor, even under extreme wet and damp conditions. May be cleaned and changed easily.

Arai´s Dry-Cool® material transfers heat and moisture away from the rider quickly and efficiently.

Cheek pads/ear cups may be easily removed. All parts (replaceable or not) can be cleaned with lukewarm water and mild soap. Rinse well after cleaning and never dry in direct sunlight or near a heat source. Interior parts in different size thickness are available for a custom fit for every rider.

• Remove by taking the frontside out first
• Place back by inserting the backside first

The complete interior may be easily removed. All parts (replaceable or not) can be cleaned with lukewarm water and mild soap. Rinse well after cleaning and never dry in direct sunlight or near a heat source. Interior parts in different size thickness are available for a custom fit for every rider.

All parts (replaceable or not) can be cleaned with lukewarm water and mild soap. Rinse well after cleaning and never dry in direct sunlight or near a heat source. Interior parts in different size thickness are available for a custom fit for every rider.

To offer an even better snug fit and enhancing the comfort to the lower jaw, the Facial Contour System (FCS) works with a foam spring support in the cheek pad that compresses and rebounds, providing the necessary support without excessive pressure.

Giving even more ability to craft the perfect fit and comfort, the cheek pads feature a 5 mm peel away layer for added room if needed.

Arai´s peel-away temple crown pads give the option of 5 mm more interior width if needed.

Allows easier access to an injured rider. By pulling the orange tabs integrated in the pads, the cheek pads slide out. Making helmet removal easier for trained medical personnel and rescuers. Minimising the risk of additional injury.

To minimize impact energy getting into the helmet, it’s crucial that a helmet can slide over a surface. Arai believes that a Strong, Round & Smooth shell helps to increase a helmets ability to protect the rider during an impact. Shells with sharp edges or vent ducts that don’t break off can reduce the helmet’s ability to slide, sending energy into the helmet, or even enhance rotational energy.

Each Arai helmet goes through five separate quality-control depart­ments: after the shell is made, after painting and graphic completion, after assembly and two in-process inspections. 

The premium quality interior of any Arai helmet can be easily cleaned, in place, with mild soap and lukewarm water.

It can take up to five years for our experts to earn the right to create an Arai shell. Each shell can take up to 27 steps and to build one Arai helmet will take about 18 man-hours.

All-day comfort with the Arai interior fit and shape together with the finest liner materials and the extensive ventilation system. And thanks to the perfect balance and weight distribution of the helmet, you hardly notice you are wearing an Arai.

All Arai helmets are penetration tested, although not required by European helmet standards. The Arai penetration test is performed with a 3kg test cone that strikes from a height of 3m on the helmet.

The flat and D-shaped rings fit smooth against the chin. No moving parts, no corrosion problems and just pulling the tab is enough to loosen the fastener.

The smooth outer shell of Arai helmets is designed to glide without unnecessary resistance. You don’t want to decelerate your helmet more than necessary. That’s why all Arai vents and ducts are designed to break off during an impact.

Arai uses a very strong outer shell to spread impact forces and a soft inner shell to absorb remaining energy. The multiple-density EPS inner shell is made using a unique technology of combining three to five densities in various areas as a single component.

The organic shape of an Arai outer shell offers a more natural appearance, seals better and conforms more to the head’s natural shape for improved comfort, fit and to help minimize wind turbulence.

All Arai helmets are warranted against defects in materials and workmanship, and are serviceable only for the properly fitted first user for 5 years from date of first use, but no more than 7 years from date of manufacture.

Unlike many other manufacturers Arai provides one size outer shell for each two-helmet sizes for most models. Together with different shaped outer shells for different models it is almost impossible not to find the fit you are looking for.

This Arai helmet is designed to meet the stringent Arai In-house criteria, in addition to the mandatory ECE 22-05 standard.