Arai Helmet Sizing Chart
| Size |
Hat Size |
CM |
| 3X-Small |
|
49-50 |
| 2X-Small |
|
51-52 |
| X-Small |
6 1/2 - 6 5/8 |
53-54 |
| Small |
6 3/4 - 6 7/8 |
55-56 |
| Medium |
7 - 7 1/8 |
57-58 |
| Large |
7 1/4 - 7 3/8 |
59-60 |
| X-Large |
7 1/2 - 7 5/8 |
61-62 |
| 2X-Large |
7 3/4 - 7 7/8 |
63-64 |
| 3X-Large |
8 - 8 1/8 |
65-66 |
Emergency Cheek Pad Release
NEW
ARAI INNOVATION: From Arai's decades-long commitment to building the
best helmets humanly possible comes the first Emergency Release
Cheekpad Design created specifically for MX/off-road motorcycle helmets.
Developed to allow easier access to an injured rider, the new VX-PRO3's
cheekpads slide out easily via the integrated pull-tabs built into the
underside of the cheekpad - which makes helmet removal much easier for
trained medical technicians.
Top-Mount Diffuser
NEW:
This is Arai's first dirt helmet with our diffuser ventilation system.
(It was Arai who introduced the world's first diffuser-mounted
motorcycle helmet - our original RX-7 road-racing model - now one of
our most-copied features.)
The technology is an
outgrowth of Arai's extensive world-class Formula-One auto-racing
experience, where we learned that the best way to ventilate a helmet is
to pull the hot stale air out, rather than trying to push new air in.
The PRO3's ventilation system features a staggering total of 13 intake
and exhaust vents! Two big 10mm under-peak intake ports are fed from
pressure captured beneath the peak; and five 10mm exhaust ports beneath
each of the two carefully-designed diffusers maximize low pressure
venturi vacuum for hot air extraction. Each vent is adjustable and
fully closeable. And the large diffuser bodies are easily
removable/replaceable for easy cleaning and/or replacing.
Rounded Chinbar
All of Arai's VX Series' dirt helmets have a unique rounded chinbar
shape with less protrusion, making it less likely to catch and dig in
during a spill than most other designs. The overall oval form takes its
cue from that of the egg, which has long been known to be an
extremely-strong and efficient shape.
Forward Tilt
NEW:
The VX-PROł has been redesigned with an additional 11mm of forward tilt
in the upper chinbar nose area, giving you more room and a more open
feeling. The length and radius of the chinbar are unchanged, retaining
the VX-Series' minimized protrusion.
Shell Construction
These
days, there are almost as many "revolutionary" shell-construction
materials as there are helmet brands. But Arai's decades of experience,
research, testing and evaluation has led our engineers to conclude that
fiberglass- based construction does the best job of performing a
motorcycle-helmet shell's main job - spreading and dissipating impact
energy through strength, structural integrity and impact-flexibility.
The PRO3's clc (Complex Laminate Construction) shell utilizes Arai's
proprietary aerospace fiberglass technology to achieve a strong,
flexible shell in a lightweight package.
Peak
NEW:
The PROł's radical new peak scavenges and forces more air into the
forehead vent-ports for improved cooling, while at the same time using
multiple relief-ports to reduce "bucketing" at higher speeds.
(Under-peak "forehead" vent-ports are another much-copied Arai
innovation.)
Grill
NEW:
A one-piece, stamp-formed, stainless-steel expanded-mesh screen
provides a durable barrier against roost while minimizing mud-packing.
The closeable chinbar vent gate, introduced on the VX-PRO-(DC), allows
control of airflow into the chin area. And it can be easily removed and
replaced if desired.
Interior
The
head comfort liner and cheekpads are fully-removable, washable and
replaceable. They use Arai's exclusive Dry-Cool® material for superior
heat transfer and drying time - making washing or swapping liners
between motos a snap. A removable/washable/replaceable chinstrap cover
completes Arai's total package of interior washability.
