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Arai Signet-X Dyno Helmet


The Arai Signet-X Helmet has massive air vents that can be operated easily with a gloved hand. The included Pinlock 120 insert lens is race-ready.


Arai Signet-X Dyno Helmet

The Arai Signet-X is the next evolution of the famous Signet-Q. Arai has thrown everything including the kitchen sink at this premium motorcycle helmet. It features a high-performance ventilation system with massive inlet and exhaust openings and large switches that can be easily operated, even while wearing thick gloves. The resigned chin curtain of the Arai Signet-X Helmet simultaneously block turbulent air from entering the helmet and creates negative pressure to exhaust more air. The fully removable odor resistant cheek pads feature speaker pockets for easy installation of communication systems and for the first time in the Signet series, Emergency Release Tabs. For a better view ahead each helmet includes a VAS-MV (Max Vision) faceshield and a Pinlock 120 lens. The Pinlock 120 lens was developed to be used in high demanding conditions such as on the racetrack or adventure riding. It has proven its extreme performance in premier racing series like MotoGP, WSBK, Formula 1 and more.

The Signet series has been the go to helmet for riders with a more long-oval head shape and this stays true with the Signet-X.

VAS Shield System:

Normally the shield mounting position must remain relatively high, because a lower shield pivot will not allow the shield to open or close. The VAS (Variable Axis System) has a variable axis (moving pivot point). This allows shield opening and closing even with the 24mm lower shield mount position, compared to the Signet-Q.

VAS Shield Latch System:

VAS shield latch system captures and holds the shield closed more securely to help prevent unexpected opening. In addition to a de-mist position, the larger latch design allows for an intuitive and seamless operation of the shield.

PB-SCLC Shell:

The Peripherally Belted – Super Complex Laminate Construction shell design combines multiple materials and techniques created internally by Arai that deliver both performance and affordability.

Arai’s Proprietary Liner:

The fully removable interior liner system is made from odor resistant material, which helps maintain neutral acidity levels close to human skin, as well as a softer liner material and adjustable temple padding to allow for a customized fit.

VAS V MV Shield:

The VAS MAX Vision shield is standard to provide better visibility in all seasons and for all types of riding and comes standard with a clear anti-fog Pinlock insert.

Additional Features:

  • Dual function lever releases both the side pod and the face shield for quick and simple face shield removal
  • VAS (Variable Axis System) shield latch system captures and holds the face shield closed and provides a de-mist position to slightly crack the shield open
  • VAS MAX Vision face shield provides excellent visibility in all seasons thanks to the included Pinlock insert
  • Neckroll is removable and has additional exhaust channels to remove interior heat
  • 5mm peel away cheek pads
  • Cheek pads with Emergency Release Tabs
  • QVF & QVR upper ventilation ducts look familiar but offer more adjustment and better flow through performance
  • PB-SCLC Shell has superb tensile strength due to a variety of carefully-positioned materials and light weight resin
  • Includes clear Pinlock insert
  • Snell 2020 and DOT approved.


Black/White / XS 1781406 685311171917/886038 Only 1 Left: Ships within 24 hours
Black/White / SM 1781407 685311171924/886039 In Stock: Ships within 24 hours
Black/White / MD 1781408 685311171931/886040 In Stock: Ships within 24 hours
Black/White / LG 1781409 685311171948/886041 In Stock: Ships within 24 hours
Black/White / XL 1781410 685311171955/886042 In Stock: Ships within 24 hours
Black/White / 2XL 1781411 685311171962/886043 Out of Stock
Black/Red / XS 1781412 685311171979/886044 Only 2 Left: Ships in 1-2 business days
Black/Red / SM 1781413 685311171986/886045 Only 1 Left: Ships within 24 hours
Black/Red / MD 1781414 685311171993/886046 In Stock: Ships within 24 hours
Black/Red / LG 1781415 685311172006/886047 In Stock: Ships within 24 hours
Black/Red / XL 1781416 685311172013/886048 Out of Stock
Black/Red / 2XL 1781417 685311172020/886049 Only 1 Left: Ships within 24 hours
XS / Black/Yellow 1781418 685311172037/886050 In Stock: Ships within 24 hours
SM / Black/Yellow 1781419 685311172044/886051 In Stock: Ships within 24 hours
MD / Black/Yellow 1781420 685311172051/886052 Only 2 Left: Ships within 24 hours
LG / Black/Yellow 1781421 685311172068/886053 In Stock: Ships within 24 hours
XL / Black/Yellow 1781422 685311172075/886054 Out of Stock
2XL / Black/Yellow 1781423 685311172082/886055 Only 3 Left: Ships in 1-2 business days


Arai Helmet Sizing


2XS 51 – 52
XS 53 – 54
SM 55 – 56
MD 57 – 58
LG 59 – 60
XL 61 – 62
2XL 63 – 64
3XL 65 – 66


Sizing information is provided by the manufacturer and does not guarantee a perfect fit.

How to Measure

  • HEAD
    Wrap a cloth measuring tape around your head just above your eyebrows and ears. Pull the tape comfortably snug, read the length, repeat for good measure and use the largest measurement.

Additional information


Black/White, Black/Red, Black/Yellow




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