Log In / Register
Cart (0) Checkout

Discontinued Product!

The Arai Signet-Q Mask Helmet
has been discontinued and will not be returning
Replacement Suggestion:
Arai Closeouts
Out of Stock
Arai Signet-Q Mask Helmet
  • Arai Signet-Q Mask Helmet - Black/Silver
  • Arai Signet-Q Mask Helmet - Black/Silver
  • Arai Signet-Q Mask Helmet - Black/Red
  • Arai Signet-Q Mask Helmet - Black/Red
  • Arai Signet-Q Mask Helmet
  • Arai Signet-Q Mask Helmet

Please select a Color and Size to check availability, or to add this item to your Shopping Cart or Wish List.

Select Color:

183 78

Select Size:

Size Chart
Select qty:
Your Savings (30%):
Your Price
Please select a Color and Size to view availability.

Video Reviews (4)

Arai Signet-Q Mask Helmet Videos

Arai Signet-Q Mask 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 Mask 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 Mask 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 Mask 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
Write a Product Review for a chance to win our monthly $100 giveaways.
Arai Signet-Q Mask Helmet 4.8 5 221 221
The only helmet you'll ever want to wear if you have a long oval head! This is my second Arai Signet -Q helmet. I'll never go back to any other make. Why buy an Arai rather than a less expensive helmet? Both will protect your head. The difference is quality of workmanship, weight, venting, noise, features and accessories, plus overall fit and comfort. The Arai is also Snell rated, if that matters to you. Most importantly, if you have a long (front-to-back) and narrow (side-to-side) head like mine, there really is no better fitting, more comfortable helmet than the Arai Signet-Q. Period. I wear my helmet for 2 hours for five days each week (1 hour each way on my commute). I also wore this helmet for up to eight hours a day on an extended touring trip. This is when weight, noise levels, venting, fit, and comfort really matter. The venting works very well, and the helmet is incredibly comfortable. The liner can be removed for washing. This helmet is well worth the price. I have the Hi-Viz Yellow, to increase my visibility in traffic. The Arai Hi-Viz Signet-Q is a beautiful piece of work with the black contrasting vents. I also added yellow highly reflective stickers found at most bicycle shops, which are invisible in the daytime but very attention getting after dark. I also use the (absolutely unfoggable!) yellow pinlock insert (which increases contrast) and the Arai Pro Shade System, both of which I highly recommend. It was with great fear and trepidation that I trusted the size chart and purchased a size large rather than an extra large. It fits wonderfully. Measure your head and trust the size chart. September 27, 2014
Beautiful fit and finish, but a little tight. I chose Arai based on it's reputation and on the recommendation by two shops that this helmet in a size small is what I should buy. It is a light and beautifully finished helmet. My only issues are that it causes a headache after 30 minutes of riding and the visor is finicky when trying to latch it closed. I can't blame the helmet for the fit issue. I guess this is why they recommended that you wear a helmet in the shop for a while to see how it feels after time. On the bright side, Arai Support gave me some options to try (pad modifications). For now I'm hoping the helmet will break in a little more. If you're looking for a safe, beautiful work of art, this helmet is for you! August 12, 2014
Only brand that fits well This is the second one of these helmets I've purchased. I have a long head front to back, and the extra length of this helmet is the only thing out there that I can wear without creating pressure points on the top of my forehead. Changing out visors is a bit trickier than other brands, and it is one of the more expensive helmets out there, but worth it for the fit. Would definitely recommend this product if you've been having problems with a pressure point on the forehead. September 23, 2014
Perfect for riders with narrow heads The Arai Signet-Q is a great helmet if you have helmets that are always rubbing on your forehead making uncomfortable hot spots. The shape of this helmet will allow you to wear the proper helmet size and be comfortable. Pros: Long/Narrow design as promised. Double layered face shield to keep from fogging. Lots of airflow when all the vents are open. Padding removes easily for cleaning and adjusting. Snell 2015 rated. Cons: The slider pucks at the top of the face shield, although small, are annoying and don't allow for a full field of vision. It might seem like a nit pick, but it bugs me. September 22, 2014
Intermediate Oval Goodness Having worn many helmets throughout my time riding I can say I've worn many an ill fitting helmets. Some manufactures require me to wear a large or extra large. The Signet-Q is the first helmet to ever fit like a glove and has freed me from pressure headaches. The ventilation on this helmet is very flexible and on a hot day, with all the vents open, the helmet wicks away and evaporates sweat to keep me nice and cool. The anti-fog pin-lock system is superb for cold weather / early morning riding. (I did get a second silver mirror visor and that has only made this helmet better.) If it's really cold outside or raining the vents can be adjusted to find that right balance of airflow for maximum comfort. Others have reviewed this better than I ever could but the shape of this helmet is perfect for you intermediate oval shaped people out there. Can't stress that enough. September 22, 2014
Top of the line, but... The Arai Signet-Q is the best of the best for the long oval head crowd, as long as your long oval head doesn't have too tall a crown as well. I found the interior shape was perfect for my very pronounced long oval head, but the Signet-Q felt like it was sitting on my head. it just didn't have enough depth in the crown to come down on my head and settle; and my chin was wagging under the chin bar, even with the helmet tilted forward as much as possible. I got an Icon Airmada instead, problem solved; same large size, nearly the same long oval shape, almost as nicely made... returned the Arai, easy returns, thanks Revzilla! September 15, 2014
Comfortable, quiet & scoops air. What could be better??? This is an expensive helmet. What do you get for those extra dollars? Build quality! This thing is a solid lid with nice hardware. Comfort! The liner is tunable and made of quality material. The visor is nice and wide and absolutely no defect or waviness in the face shield. Air-flow! This thing shoves air in your face and circulates it all around your noggin. There are other helmets that vent well but this lid does it at all speeds. I even get a breeze when stopped. When I first wore it I reached to pull the visor down when ridding down my neighborhood street at 10mph because I thought it was up due to the air-flow. Yes, it's that good. Quiet! Not stealth mode movie effect quiet but quieter than any of my previous helmets. You hear slight wind noise but it doesn't overpower other sounds as my other helmets did. Warranty! 5 years. Enough said. If you are in the helmet hunt this one should be at the top of your list. I've tried them on in store before and been tempted but have always gone with a cheaper helmet. I'm glad I didn't this time as I could tell within the first mile that this was a keeper!!! Previous helmets: Nolan, Bell, Bilt & Icon September 13, 2014
Good helmet. Not cheap but what's your life worth? If you have a long oval head like mine this helmet is great. For the first time I can wear a helmet and not have a headache and a huge red welt on my forehead when I take it off. The helmet is light with good air flow. September 2, 2014
2 3 4 5 ... 28 next>>
Use our Product Q&A for a chance to win our monthly $100 giveaways.

Have a functionality, fit, or otherwise product-specific question about the Arai Signet-Q Mask Helmet? Ask it here! If you have a customer service or shipping question, please direct it to our Customer Service department.

Arai Signet-Q Mask Helmet
Already Asked: 4 Questions, 19 Answers
Sort by:
RevZilla Store asked: Why did you choose this?
"" ": I researched many helmets and wih the excellent help of Bobby at the store, I decided on this helmet over the RXQ and the Schuberth C3P for the fit and reputation of the Arai. Nov 22, 2013

Arai Helmet Sizing:

Wrap a cloth measuring tape around your head just above your eyebrows. Pull the tape comfortably snug, and read the length.

Size Head (in) Head (cm)
2XS 20 - 20 1/2 51 - 52
XS 20 7/8 - 21 1/4 53 - 54
SM 21 5/8 - 22 55 - 56
MD 22 1/2 - 22 7/8 57 - 58
LG 23 1/4 - 23 5/8 59 - 60
XL 24 - 24 3/8 61 - 62
2XL 24 3/4 - 25 1/8 63 - 64
3XL 25 1/2 - 26 65 - 66

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

Click here to see the full Arai Helmets Size Chart

You will need to upgrade your flash viewer to view this content
Product Style RevZilla Item # Manufacturer Product # Availability
Black/Silver / XS 800390 817440 Out of Stock
Black/Silver / SM 800391 6.85311E+11 Out of Stock
Black/Silver / MD 800392 6.85311E+11 Out of Stock
Black/Silver / LG 800421 6.85311E+11 Out of Stock
Black/Silver / XL 800393 6.85311E+11 Out of Stock
Black/Silver / 2XL 800394 6.85311E+11 Out of Stock
Black/Red / XS 800395 817450 Out of Stock
Black/Red / SM 800396 6.85311E+11 Out of Stock
Black/Red / MD 800397 6.85311E+11 Out of Stock
Black/Red / LG 800398 6.85311E+11 Out of Stock
Black/Red / XL 800399 6.85311E+11 Out of Stock
Black/Red / 2XL 800400 6.85311E+11 Out of Stock