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ARAI SZ RAM 4 Cafe Racer Helmet

1.85 KGS
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Product Description

ARAI SZ RAM 4 Cafe Racer Motorcycle Helmet (Special Edition)

ARAI SZ RAM 4 CAFE RACER (Special Edition): The latest new addition of ARAI SZ RAM 4 motorcycle helmets: CAFE RACER (Special Edition) You have seen it here first on HelmetBoys.com. You can forget about ARAI RAM 3 helmets, ARAI RAM 3 is history and no longer in production. Why would you buy an outdated version for the same amount of price? It is like wanting to buy an Apple iphone 3G when iphone 5 is already selling for the same price.

ARAI SZ RAM 4 Cafe Racer Motorcycle Helmet

What is so special about ARAI SZ RAM 4?

ARAI which is "Made in Japan" reflect the typical high standard expected from a Japanese company. ARAI's commitment to safety and attention to details that serves to the rider's needs should be highly commended.

ARAI SZ RAM 4 CAFE RACER inherit the airflow dynamics of ARAI full face motorcycle helmet model RX-7 RR5. ARAI SZ RAM 4 has evolved to the highest safety standard of the full-face racing helmet model RX-7 RR5.

In terms of rigidity:
ARAI SZ RAM 4 CAFE RACER pass the Snell 2010 standard without changing the size and weight.  Rigid foam liner and multi-stage robust shell. Super Fiber Laminate shell-strong, lightweight, comfortable

In terms of Aerodynamics evolution:
ARAI helmets have been analyzed  from the flow of dense air, excellent high-speed stability performance. The dual air intakes, air exhaust outlets provide smooth and comfortable high-speed stability performance.

In terms of Air cooling capabilites:

ARAI SZ RAM 4 CAFE RACER matches the ARAI full face model RX-7 RR5 with excellent ventilation.

Buying ARAI SZ RAM 4 Technology

Arai motorcycle helmets have an outstanding reputation for safety. ARAI helmets stand for highest quality and innovative technology that is a leader in the motorcycle helmets industry. For those who have yet to heard of ARAI, ARAI helmets is like the "Ferrari' of motorcycle helmets.

Some have asked: Why is it so expensive or why pay so much for a half face motorcycle helmet? "Expensive" is a relative term and depends on the point of view. There is no amount of price you can pay for your own SAFETY. Only those who know how to appreciate ARAI airflow technology will be willing to pay the top price.

Arai helmets' superior quality are so highly advanced that the world's highest level of racing Formula One F1 and MotoGP racers have depended on ARAI helmets for their lives. If MotoGp riders can trust ARAI helmets, there is enough obvious reasons that you should get what you pay for the highest quality.

  • Fixed Air-Wing diffuser provides stability at high speed
  • Unique Visor Brow Ventilation System
  • Fully removable DRY-COOL® LINING
  • Complex Laminate Construction shell
  • Removable/Replaceable cheek pads for custom fit
  • colour: special Matte fininshing Arai RAM 4 Helmet


As usual, ARAI has always been meticulous for their quality of production. Every single piece of ARAI SZ RAM 4 produced in the Japan factory is examined by hand and weight for consistency. Any helmet that deviate from ARAI quality control will be thrown away. This means that you as a buyer will always get a top quality ARAI helmet.

ARAI SZ RAM 4 Air Ventilation System

ARAI SZ RAM 4 upper ventilation system borrows directly from ARAI full face RX-7 RR5 helmet series which is the world's first diffuser-mounted motorcycle helmet. ARAI SZ RAM 4 has improved airflow and further enhanced helmet stability. Fixed Air-Wing on the ARAI SZ RAM 4 reduces lifting while providing additional stability at highway speed. DF-11 Diffusers have larger air vents on/off toggle switches for easier operation.


ARAI SZ RAM 4 Motorcycle Helmet fixed  airwing airflow

*Blue arrows represent cool fresh air flowing into the helmet
*Orange arrows represent hot stale air being expelled out

ARAI SZ RAM 4 Top Air Ventilation

To harness the effective use of negative pressure to expel hot stale air when riding, ARAI SZ RAM 4 helmet adopt innovative ventilation system to transfer heat from inside of the helmet to outside. There are six holes on top of the helmet. The two frontal air vents for air intake and the remaining four holes force the hot stale air out to the back of the helmet. There is a switch control at the central mounted air diffuser when you can stop the introduction of air.

ARAI SZ RAM 4 Motorcycle Helmet top airflow ventilation

The function of the central mounted diffuser is to suck the hot stale air out rather than the conventional method of trying to force fresh air into the helmet. In addition this TYPE-10 ventilation system allow air to flow smoothly on the intake side. The newly designed TYPE-10 ventilation system also enhanced the quietness of the front air intake. ARAI has incoporated the central mounted diffuser technology from ARAI RX-7 RR5 to an half face motorcycle helmet ARAI SZ RAM 4.


ARAI SZ RAM 4 Back Air Venting System

You can see how the airflow is passing through the top of ARAI SZ RAM 4 helmet and expel through the dual rear exhaust.

ARAI SZ RAM 4 Motorcycle Helmet airflow ventilation exhaust
*Blue arrows represent cool fresh air flowing into the helmet
*Orange arrows represent hot stale air being expelled out

ARAI SZ RAM 4 Side Air Venting System

ARAI SZ RAM 4 helmet shape is carefully designed by ARAI to further enhanced and streamlined the flow of air through the side pods. Thinner visor shield side pods provide a more aerodynamic shape on ARAI SZ RAM 4.

ARAI SZ RAM 4 Motorcycle Helmet side airflow

It is very common to have heat buildup inside the ear area around the helmet. ARAI SZ RAM 4 helmet utilize the fully adjustable Type-10 diffuser system where hot air can be expelled out through the side vents. Vented neck roll on both models takes advantage of existing airflow from around the rider’s neck to further enhance helmet ventilation by extracting more heat build up from the interior. You can see the actual side vent picture below.

ARAI SZ RAM 4 Motorcycle Helmet side exhaust

ARAI SZ RAM 4 Unique Visor Brow Venting System

ARAI helmets have first class unique features like the face shield brow venting system and external rotating mechanism for the face shield. If you look closely at the ARAI SZ RAM 4 visor face shield, there are two air vent scoops right on the visor face shield. The purpose of the Visor Brow Ventilation System is to provide fresh cooling air into the rider's upper face area.

Now ARAI SZ RAM 4 helmet Visor Brow airvent provides fresh cooling air further to the side cheek pads.

The two Visor Brow airvent scoops can be open by pulling down the shutter fin to let cool air (blue arrow) flowing from the outside onto the rider's forehead. Cool freah air flow in from the visor air scoops are channelled directly through air vent ducts and onto your forehead area. The Brow Vent Faceshied Ventilation System technology disregard the need for holes in the critical forehead area or in the impact-absorbing liner material.

ARAI SZ RAM 4 Motorcycle Helmet airflow cheek

AS you can see from the picture above, the improved ARAI RAM 4 accomodate not only cool air flowing to your forehead but also through the side cheek pads. ARAI innovative technology are well thought out for the rider's needs.

ARAI SZ RAM 4 Helmet Shell Construction

ARAI RAM 4 helmet shell-construction material (Complex Laminate Construction) utilizes Arai's proprietary Multi-Density single piece EPS liner which absorbs exceptional impact energy while keeping the overall size and weight of the helmet to a minimum. Fiberglass composite besides being lightweight, also allow the use of softer, less-dense liner materials for increased rider comfort.

The absence of exaggerated edges or protrusions in the shell is to maintain the integrity of the shell with real world impact performance.

Three-stage foam liner
ARAI RAM 4 helmet incoporates three-stage foam liner to absorb the impact delivered to the frontal area. By varying the hardness of the liner which require sophisticated technology, a buffer effect can be obtained to absorb and withstand the shock in the event of an impact. Other brand of motorcycle helmets take the easy way out by producing uniform hardness of the liner throughout the helmet.

Arai also continues to use fiberglass for their motorcycle helmet shell because this material can be designed to spread the load forces more evenly.  You can enjoy a peace of mind knowing that ARAI RAM 4 helmet has passed through stringent Singapore Safety Standards SS 9: 1992 batch testing and attained the "PSB TEST" safety label. ARAI RAM 4 helmet also meet or exceed Snell and DOT standards.

ARAI SZ RAM 4 Helmet Wind Noise Reduction

ARAI RAM 4 is designed such that the slightest wind or wind noise are further reduced in the gap between face shield and helmet shell. Therefore the edge of ARAI RAM 4 helmet shell is designed to stop the infiltration of wind for reduced wind noise.


ARAI SZ RAM 4 Helmet Interior Lining

ARAI RAM 4 helmet has the most unique EPS liner which helps to assist energy absorption upon impact. The hybrid EPS liner has EPS cells that form a mutual bond to absorbed the force when the helmet is crushed under impact. 

ARAI RAM 4 helmet offers the latest version of Arai's INNOVATIVE DRY-COOL® LINING. The Dry-Cool® removable liner has micro cells that absorb moisture such as sweat and dissipate heat away from your head.  This keep your head cool and dry without having the sticky feeling especially if you are in humid tropical countries such as Singapore and Malaysia. The Dry-Cool® lining also dry up faster between hot rides.

The liner has been wrapped in mesh material which is soft to touch. The inner cheek pads, inner lining and chin strap are removable and washable. This allow you to have hygiene maintenance with periodic washing.

ARAI SZ RAM 4 Helmet Size Chart

* S : 55-56cm
* M : 57-58cm
* L : 59-60cm
* XL : 61-62cm
* XXL : 63-64cm
* XXXL : 65-66cm

Unsure of which helmet size to take? Please click here for instructions and watch video
on how to measure your head for the correct helmet size

ARAI SZ RAM 4 Helmet Colors

ARAI SZ RAM 4 motorcycle helmets


ARAI SZ RAM 4 Helmet Features

    * Fixed Air-Wing reduces lifting
    * Improved visor brow side cheek ventilation
    * Sizes available : S / M / L / XL / XXL / XXXL
    * colour available: Alumina Silver / Glossy Black / Glossy White / Sapphire Silver
    * Ventilation: Dynamic system with two front and rear exhaust vents
    * Removable inner lining (can be taken out to wash)
    * Aerodynamic designed for Optimum AirFlow

Fully adjustable Type-5 diffuser system

Some of customers who have bought ARAI SZ RAM 4 Helmet from HelmetBoys.com


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