Arai's major technological innovations: materials, safety, aerodynamics

Arai is renowned worldwide for its high-end motorcycle helmets, the result of continuous research and artisanal expertise passed down through generations. The Japanese brand enjoys such a prestigious reputation because it puts innovation at the service of an essential mission: protecting the rider, regardless of the type of impact or environment. Let's explore together the key technologies that have built Arai's reputation.

A unique approach to security: form above all

Unlike many competitors, Arai doesn't begin helmet design with aesthetics or functionality. Absolute priority is given to the helmet's external shape. Arai has thus developed the "R75" shape: a constant curvature of at least 75 mm radius on the shell.

Why this shape? Because it allows the helmet to slide more easily on the ground or over obstacles in case of a fall, thus reducing the transmission of energy to the brain. It's a biomechanical approach that aims to support movement rather than restrict it.

Exclusive, ultra-resistant materials

Arai manufactures its helmets using high-performance, complex fibers. Each model uses a specific combination of materials depending on the desired level of protection:

• Super Fibre : 30% stronger than conventional fibreglass.
  
  

• Complex Laminate Construction (CLC) : multi-layer lamination for optimal rigidity.
  
  

• PB-cLc2 (Peripheral Belt complex Laminate construction) : a peripheral belt adds extra rigidity without increasing weight.
  
  

These materials are not only resistant, but designed to absorb energy progressively.

A multi-density EPS foam with dedicated zones

Inside, Arai uses EPS (expanded polystyrene) foam, the density of which varies depending on the area of ​​the helmet. This technique optimizes shock absorption:

• Denser frontal zone for direct impacts.
  
  

• Softer sides and top to cushion against slipping.
  
  

• Precise adaptation to the morphology for optimal support.
  
  

Each EPS shell is molded in one piece, for maximum structural consistency.

Aerodynamics tested in a wind tunnel

Arai has its own wind tunnel facilities to test and improve the performance of its helmets at high speeds. These tests allow us to:

• Reduce aerodynamic drag.
  
  

• Limit the lift that raises the helmet at high speed.
  
  

• Improve stability in a straight line and in turns.
  
  

• Ventilate effectively without compromising acoustic comfort.
  
  

The flagship RX-7V model has thus been extensively refined for competition drivers who drive at speeds exceeding 300 km/h.

Ventilation and thermal comfort

A good helmet should be comfortable in all weather conditions. Arai has developed a complex ventilation system incorporating:

• Adjustable upper air intakes.
  
  

• Rear extractors to create a Venturi effect.
  
  

• Internal conduits sculpted from EPS foam.
  
  

This system allows air to be renewed even at low speeds, while avoiding hot spots and fogging.

Intelligent secondary security systems

In the event of an accident, removing the helmet can worsen neck injuries. That's why Arai developed the ERS (Emergency Release System) : the cheek pads can be easily removed by first responders to facilitate helmet removal.

This system has become an inspiring industry standard.

Approvals and internal requirements

Arai helmets are certified according to the strictest standards:

• ECE 22.06 : in force in Europe, testing in particular oblique impacts.
  
  

• Snell : demanding American standard.
  
  

• Arai internal tests : much more rigorous than the standards, with higher speeds, more varied angles, and penetration tests.
  
  

Arai designs its helmets to pass the toughest tests, not just to meet the minimum requirements.

An innovation in the service of sustainability

Every Arai helmet is designed to last. Internal components are often replaceable (foams, visors, chin straps), allowing the helmet to be maintained over the years without compromising performance.

It is an ecological as well as an economic approach, which extends the lifespan of each product.

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At Arai, innovation is never a gimmick. It serves a single mission: to offer the rider the safest, most comfortable, and most durable helmet possible. A winning strategy, the result of a constant obsession with detail and a deep respect for the motorcyclist.