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Purchase Item: Arai XD4 Helmet Solid White
  • SKU: HEAR7001
    Arai XD4 Helmet Solid White

  • $609.95

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Arai XD4 Dual-sport Helmet
Solid White

Offering three distinct configurations, allowing the user to choose which works best for their riding needs, the new XD4 is similar in appearance to the previous XD3, but greatly improved in all-around performance. The combination of the new comfort headliner, with microfitting 5mm peel-away temple pads, and our patent-pending FCS® cheek pad design, also with 5mm peel away layers, add a new dimension to the concept of helmet fit and customization. It takes a unique sense of commitment to continually strive to improve your product – especially when it’s already regarded as the very best.

Arai is the only company offering multiple intOperior-fit shapes to better address the infinite variety of riders’ head shapes and sizes.

No one pays more attention to the subtle variations and infinite possibilities of the human head shape than Arai. Why? Because it’s the secret to getting the best comfort and fit.

The XD4 has Arai's INTERMEDIATE OVAL (IO) interior fit shape.*
*A Helmet needs to be tried on in order to determine a proper fit.


There is no substitute for actually trying the helmet on for proper fitment. If you are local, come in to have a helmet custom fitted.
HCM (Head Circumference Measurement) is always the starting point to pick the correct size. From there, it is a matter of tweaking with various liner and cheek pad configurations.

Helmet Size - HCM (cm)
XS  -  53 to 54
S  -  55 to 56
M  -  57 to 58
L  -  59 to 60
XL  -  61 to 62
XXL  -  63 to 64
XXL  -  65 to 66

Interior Lining Thickness
Helmet Size -Standard  - Optional Sizes
XS  -  7mm  -  10mm
S  - 7mm  -  5 and 10mm
M  -  10mm  -  5, 7 and 12mm
L  -  7mm  -  5 and 10mm
XL  -  7mm  -  5 and 10mm
XXL  -  7mm  -  10mm

Cheek Pad Thickness
Helmet Size - Standard - Optional Sizes
XS  -  20mm  -  15 and 25mm
S  -  20mm  -  15 and 25mm
M  -  20mm  -  15 and 25mm
L  -  15mm  -  12 and  20mm
XL  -  15mm  -  12 and 20mm
XXL  -  12mm  -  15mm

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