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Discontinued Product!

The Arai Signet-Q Flash Helmet
has been discontinued and will not be returning
Replacement Suggestion:
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Out of Stock
Arai Signet-Q Flash Helmet
  • Arai Signet-Q Flash Helmet - Red

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Video Reviews (4)

Arai Signet-Q Flash Helmet Videos

Shape: Long Oval

Weight: 3.60 lbs

What's this?

Arai Signet-Q Flash Helmet

The Signet-Q takes all the favorite features of the RX-Q and create a whole new series based on all the successes. On the outside, the Arai Signet-Q Helmet looks very similar to it's namesake, the RX-Q, but on the inside you can see and feel the difference. A longer shell shape on the Arai Signet-Q Helmet gives 5mm more space front to back allowing for a larger number of heads to fit comfortably. The shape of the Arai Signet-Q Helmet releases forehead pressures and eliminate hot spots for a more comfortable fit every time.  This shape works best for riders with a long oval headshape.

Additional Features of the Arai Signet-Q Helmet

  • Both the top vent set and side exhaust cowls are direct carryovers from the RX-Q 
  • Brow vent ducting redirects to flow air across the temples
  • DDL-4 exhaust vent to the 10mm wider eye port (5mm on each side)
  • Long Oval Fit
  • SAI "MAX-Vision Brow Vent" shield
  • Clear Pinlock Max-Vision Brow Vent Pinlock lens included
  • Elongated shell adds 5mm from front to back
  • Long-Oval shape helps prevent “Hot-Spot”
  • Multi-Density Single piece EPS liner
  • Removable, replaceable, washable interior
  • Dry-Cool Surface material for rapid displacement of heat and moisture away from your head and into the ventilation airflow for added comfort while riding and a quick dry between rides
  • 5mm peel-away temple pads adds another level of customization, giving the helmet interior a little extra width when needed
  • Enhanced for customizable micro fitment interior without the need to purchase extra interior components
  • New FCS (Facial Contour Support) cheek pad design
  • Innovative and exclusive spring support adds just the right amount of pressure when needed while being worn
  • Meets or exceeds Snell and D.O.T. standards

Arai Helmet Sizing

Size Head (cm)
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

H 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.
Product Style RevZilla Item # Manufacturer Product # Availability
Red / XS 814168 817580 Out of Stock
Red / SM 814169 6.85311E+11 Out of Stock
Red / MD 814170 6.85311E+11 Out of Stock
Red / LG 814171 6.85311E+11 Out of Stock
Red / XL 814172 6.85311E+11 Out of Stock
Red / 2XL 814173 6.85311E+11 Out of Stock


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If your order arrives and it is not right, we will we'll fix it, NO NONSENSE, we promise.

Doesn't fit or just not happy with it? You can return any new, unused and unaltered item within 30 business days of delivery receipt of your item. We will issue a full refund to your original payment method.

See our full Return Policy for all of the pertinent details.

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Arai Signet-Q Flash Helmet 4.8 5 359 359
SPecial size for narrow heads No one makes a helmet that fits someone with a long oval head like the Signet-Q from Arai. The fit and finish of this helmet is beyond any other manufacturer. I've had HJC, Bell, Nolan and nameless brands and none of them fit a long oval shaped head. Finally, excellent finish, great graphics and replaceable pads for when your sweat just permeates the originals and they have to be replaced. Different tinted wind screens and durable designed movable parts. Great helmet August 19, 2016
Worth Every Penny! I've owned several brands of helmets and this is the absolute best. The Signet-Q model is designed for riders with long-oval shaped heads and the comfort is outstanding. Very quiet, great airflow and wide field of vision. The brow vents in the face shield flow air right where you need it on hot days. Super lightweight and the Diamond white finish is awesome. Arai helmets may be a little expensive but you get what you pay for in terms of safety and features. August 16, 2016
I have finally found a helmet that fits I am already an Arai customer for life. This is a beautiful, high quality helmet. The details and small design features are great and tells me that this company actually cares if they make a great helmet. The airflow is amazing and is engineered into the helmet, unlike most helmets that just have a holes drilled into them. TRUST THE SIZE CHART. I was skeptical but I measured and ordered an XL and it fits perfectly. My last helmet is a Schuberth and it is a 3X, so I was expecting to return for a larger helmet. Aria knows what they're doing. I also have used modulars for 6 years and I have gone back to a solid helmet. No regrets. The modular is overrated for features and adds weight and expense. Love this helmet. August 16, 2016
Brilliant!! Made for long oval heads....which no other brand can match. Airflow you can really feel, and on cool mornings you can shut off easily. Not quiet, but with earplugs it is perfect. Comfort? Oh yeah....wear it all day with no issues at all!! Knowing it will protect your brain....PRICELESS!!! August 7, 2016
Very good helmet I have purchased it 3 months ago and its great. Its air flow keeps me breathing at high speed and the comfort is amazing. I recomend for small faces and short chin faces. July 27, 2016
Excellent Helmet Been wearing Arai Long Oval helmets for years. Signet Q is the best by far. Like that it comes with a Pinlock lens. Wore a large in my previous Arai Profile but the salesperson in the Revzilla showroom recommended a Medium in the Signet Q. She was right. Snug, but oh so comfortable. Best part is they flat out work as designed. Recently crested a rise at about 45 mph and found an 8-inch deep pothole on the other side. Broke a link in the rear suspension and locked up the rear wheel. Skidded for about 40 feet and then fell. Hit my head twice on the road (yellow paint from the center line on the helmet). No headache, no concussion, no nothing. I've always been an ATGATT guy and all of it did its job very well. Bruised but no rash. Bottom line. Love my Arai. July 18, 2016
First Helmet A coworker and the MSF guide recommended either and Arai or SHOEI. I previously tried the LS2 vantage which is also rated as a long oval however still presented itself with a hot spot on my forehead after 15 minutes of wear. With this helmet, no such hotspot, unfortunately I think I bought a helmet size too large. There is so much customize-able padding inside the helmet that allows you to create more space inside. I'd say when in doubt go a size smaller. The Large still fits snugly on my head by wind (from my naked bike) at speed cause the slightest of wiggling. After 3 weeks of daily use one of the vents on the visor popped off while I was riding down the Interstate never to be found again. The helmet gets pretty loud at ~60+mph but for sub 55mph speeds I hardly notice. July 14, 2016
No Surprises from Arai Purchased this helmet for my wife. She has had several 'starter' level helmets but with the purchase of her new Ducati Scrambler it was time to move up to something of higher quality. The quality of components and their fit and finish is consistent with other Arai helmets that I have owned. She is very happy with the fit of the shell, how easy it is to clean the inside, and how quiet is is compared to her previous helmets. She also said she experiences less buffeting and the vents work great! July 13, 2016
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