SHAPE MATTERS
easy as one. two. three.
THE ARAI FIT
1. MEASURE Have the circumference of your head measured to get an idea of where to start. The image here shows the proper placement of a measuring tape to get the most accurate measurement.
THE PROPER CROWN FIT The interior must fit snugly all around the crown of your head. You should feel a firm, even pressure at all the contact points around the interior perimeter, with no tight pressure points that could become uncomfortable over time. The perimeter pads should be supporting most of the helmet weight, with the top crown pad touching the top of your head and supporting only some of the helmet weight. THE PERFECT FIT Over the last several years, we measured the head shapes of thousands of consumers across the U.S., providing us with the first hand information that led to the development of our latest Long Oval (L/O) helmet, the Signet-X. The Quantum-X is the Round Oval (R/O) counterpart to the Signet-X, and all other models have the Intermediate Oval (I/O) head shape, which make up our three fit packages. Head shape is vital for proper fit in addition to helmet size. Only Arai offers three unique head shapes in our helmets to achieve the best fit possible. DON’T GUESS SIZE Try the helmet on for a while before you buy it. Have your head measured using the method we describe, and remember that if it feels too snug on your cheeks, our cheek pads are adjustable. Shape and fit can change as helmet models evolve so it’s best to check.
ONLY FROM ARAI Just like fingerprints, no two heads are the same. So how could you expect one helmet to fit every head? If you understand the value that a properly fitting helmet has on both the enjoyment of the ride as well as its performance in an impact, you can appreciate the need for more than one interior head shape. Arai’s interior shapes have evolved over decades, and as a result three basic shapes emerged: Round Oval, Intermediate Oval and Long Oval. Having these different options gives every rider the chance to find their ideal fit; you can even customize your helmet further with various head and cheek pads to achieve the perfect fit for you. Only Arai gives every rider the opportunity to get the best fitting helmet possible.
FACING A POTENTIAL PROBLEM Some riders are concerned about getting the helmet to fit over their faces. We found many riders wearing helmets up to two sizes too big. That’s because when you can’t get the helmet past your cheeks or jaw, you think it’s too small, so you reach for a bigger size. But your brain is not in your face. It’s important to focus on head size first, and adjust the cheek pads after if necessary. Arai created the Facial Contour System in our cheek pads too, that makes ingress and egress easier and cradles your face better once on, so you can find the perfect fit.
2. TRY ON AN ARAI A HELMET NEEDS TO BE TRIED ON IN ORDER TO DETERMINE A PROPER FIT. With an Arai helmet, regardless of your presumed head shape, a side-by-side test fit, like a Quantum-X against a Signet-X, will give an apples-to-apples comparison to find your best fit. And, not surprisingly, in some cases your perfect fit isn’t the interior shape you thought you were.
THREE ARAI HELMET SHAPES
ROUND OVAL | QUANTUM-X The Round Oval shape was designed for riders whose heads are slightly wider rather than elongated. The Round Oval shape was achieved by using an interior head liner that combines thicker front and rear pads with thinner side pads.
INTERIOR LINING THICKNESSES
CHEEK PAD THICKNESSES
STANDARD
OPTIONAL
LONG OVAL
ROUND OVAL
CORSAIR-X RC
CORSAIR-X
CORSAIR-X RC
CORSAIR-X
HCM* (cm)
Lining Code
12 mm
10 mm
7 mm
5 mm
12 mm
10 mm
7 mm
5 mm
Thicker (mm)
Standard (mm)
Thinner (mm)
Thicker (mm)
Standard (mm)
Thinner (mm)
Size
3. MICRO FIT INTERIOR LINERS AND CHEEK PADS
–
–
–
XS
XS 53–54
I
XS
30 30 30 25 25 20
25 25 25 20 20 15
20 20 20 15 15
S
S 55–56 II M 57–58 III
S
30 30 25 20
25 25 20 15
20 20 15 12
INTERMEDIATE OVAL | CORSAIR-X, CONTOUR-X, REGENT-X, RAM-X, CLASSIC-V, XD-4, & VX-PRO4 Our Intermediate Oval shape is our standard interior shape. The Intermediate Oval fits the majority of head shapes in the North American markets.
M
M
Many Arai models feature removable cheek pads that have a 5mm peel off slice and removable head liners with a 5mm peel off slice on the temple pads. You can remove these to micro-fit if necessary without having to buy additional pads. Often this allows you to stay in your fitted size rather than the traditional solution of moving up a size, which decreases comfort and performance while increasing noise and movement. You can also order optional thicker or thinner head-liners and cheek pads allowing you to even further custom fit your Arai helmet. To order a liner of a different thickness, start with the Lining Code that matches your helmet size, then specify the desired thickness. For example, an optional 5mm liner for a large helmet would be specified as a III-5mm liner. All thicknesses of cheek pads will fit in all helmet sizes in their respective models.
L
L
59–60 III
L
XL
XL 61–62 IV XXL 63–64 V
XL
– –
– –
– –
– –
XXL
XXL
–
–
XXXL
SIGNET-X / QUANTUM-X CONTOUR-X /REGENT-X
SIGNET-X / QUANTUM-X CONTOUR-X /REGENT-X
RAM-X
RAM-X
XD-5
XD-5
12 mm
10 mm
7 mm
5 mm
12 mm
10 mm
7 mm
5 mm
Thicker (mm)
Standard (mm)
Thinner (mm)
Thicker (mm)
Standard (mm)
Thinner (mm)
Thicker (mm)
Standard (mm)
Thinner (mm)
12 mm
10 mm
7 mm
5 mm
XS
30 30 30 25 25 20
25 25 25 20 20 15
20 20 20 15 15
30 30 30 25 30 25
25 25 25 20 25 20
20 20 20 15 20 15
30 30 30 25 25 20
25 25 25 20 20 12
20 20 20 15 15
XS S M L XL XXL
S
M
L
XL
– –
– –
XXL
–
–
–
–
–
–
–
XXXL
LONG OVAL | SIGNET-X The Long Oval shape was designed for riders with a narrow head and a more pronounced forehead. The Long Oval was created by increasing the space of the EPS liner front to back and decreasing the space side-to-side.
12 mm * HCM (Head Circumference Measurement) should be a starting point only in determining your helmet size. Determining the best possible fit should be from actual test fittings of Arai’s various interior fit packages. Changes and updates can affect the standard pad thickness supplied with your helmet. 10 mm 7 mm 5 mm 12 mm 10 mm 7 mm 5 mm
VX-PRO4
VX-PRO4
CLASSIC-V
XC-W
12 mm
10 mm
7 mm
5 mm
Thicker (mm)
Standard (mm)
Thinner (mm)
Thicker (mm)
Standard (mm)
Thinner (mm)
Thicker (mm)
Standard (mm)
Thinner (mm)
XS S M L XL XXL
XS
30 30 35 30 30 30
25 25 30 25 25 25
20 20 25 20 20 20
30 30 30 25 25 20
25 25 25 20 20 15
20 20 20 15 15 12
30 30 35 30 30 30 25
25 25 30 25 25 25 20
20 20 25 20 20 20 15
S
M
L
XL
XXL
–
–
–
–
–
–
XXXL
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