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Arai Defiant Chronus Helmet
  • Arai Defiant Chronus Helmet - Black
  • Arai Defiant Chronus Helmet - Black
  • Arai Defiant Chronus Helmet - Red
  • Arai Defiant Chronus Helmet - Red
  • Arai Defiant Chronus Helmet - Yellow
  • Arai Defiant Chronus Helmet - Yellow
  • Arai Defiant Chronus Helmet - Green
  • Arai Defiant Chronus Helmet - Green

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Video Reviews (4)

Arai Defiant Chronus Helmet Videos

Arai Defiant Chronos Helmet

Detailed, precision clock like inner workings hide beneath the surface of this new design. The Chronus graphic look sharp from a distance, but offers surprising detail up close for those who appreciate attention to fine detail. 

Designed specifically for the aesthetics and needs of street fighter and naked bike rider in mind, the Arai Defiant Chronus is equally aggressive and feature rich, as one would expect from a new Arai helmet. Based on the fit and comfort of the Quantum, the Defiant was built for the upright riding position with its aggressive, integrated chin spoiler, which was designed specifically to guide wind around the neck and to improve the aerodynamic properties of the helmet. The Hyper Ridge Bumper circles the bottom of the shell both adding additional strength and also lowering the helmet's center of gravity, while flaring the helmet opening slightly to increase the ease of putting on, and taking off.

The Arai Defiant utilizes Arai's latest faceshield design, the SAI Max Vision Pinlock Shield with Brow Vents and includes Pinlock insert lens. The SAI Max Vision shield has been widened by 5mm left and right and offers one of the widest eyeports available for excellent peripheral vision.  


  • Aggressive new styling
  • Internals are redesigned with a focus on safety and comfort
  • Organic shell shape for superb energy management
  • New IC-4 Upper Intake vents seal more completely when closed
  • New ACR-4 flow thru exhaust vent allows greater air flow when open and reduces drag when closed
  • FCS R (Facial Contour Support) cheek pad design has 5mm peel away micro fit layer for greater personal fit
  • Cheek pads feature contoured shape, multiple density foam layer supported by a patented spring
  • New shell shape is easier to put on and take off
  • New water repellent material along bottom edge
  • Pull down spoiler works with new flared bottom to increase helmet stability
  • SAI Max Vision Brow Vent Pinlock anti-fog lens insert included
  • DOT and Snell 2010 certified
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Arai Defiant Chronus Helmet 4.6 5 117 117
This a great helmet!!!! No need to carry 2 visors. The shade feature is excellent and has great visibility. Helmet is very comfortable and fits great. The only concern I have is when using my Sena 20s, the speakers do not sit far enough in without bothering my ears. I had to modify the depth to make them fit better. I called Arai to see if the 15mm cheek pads have a thinner base, but they said that the only difference is the thickness of the removable pads. Other than this, this is an excellent product. September 22, 2015
Insane Air Flow. I have this helmet for 2 months now and it is very different from anything I ever had. Air flow was mindblowing first time I got up to 50 mph. Air blows from every angle and and sometimes straight into your eyes. You cannot completely seal this helmet. Even with all vents closed there is more airflow than my Shoei RF1100. This is great helmet in the summer at moderate speed but I can't imagine wearing this helmet on a long trip. Dark visor screen works good when it's down but makes noise at higher speed if you have it lifted. I don't ride without earplugs. Styling is superb. If it matters, I get a lot of compliments. Interior is very luxurious and has by far best feel from any helmet I use. There is only one pressure point on my forehead that feels uncomfortable after about an hour. Other than that very good fit. If you like lots of Air in your face this is your helmet. If you ride in cold days like I do, make a pass or use this as a second helmet. September 17, 2015
Fits a great niche So...I researched & tried on all sorts of helmets when it came time to pick up a new bucket to replace an old Shoei. At some point, the options become almost overwhelming. I eventually narrowed my choice down to a handful of manufacturers, all of whom had great reputations for safety. My key criteria, after safety, was flow-through/coolness, wind aerodynamics, & overall comfort. The Defiant ended up making the final cut because it vents so well & because it's terrific at highway speeds. It's also super comfortable. Here are the possible downsides: the styling may not be for everyone. It's a little aggressive and un-Arai-looking, but to each his own. It's also not the quietest helmet out there, but it's not bad. If you're looking for a helmet to keep your melon cool when riding upright-ish & exposed to the wind, aren't willing to compromise on safety & aren't super budget restricted, make sure to try a Defiant. September 13, 2015
Great helmet I bought the helmet based on Arai's reputation for safety and their design of this helmet for naked/minimally faired bikes. Watch the video to see just how much technology is in this helmet. It is well worth the price. August 19, 2015
I am happy! This helmet has everything I wanted. Safety, looks, features. I ride daily to work and am enjoying a more quiter ride with almost zero head shake. Some of that can also be attributed to the PUIG windscreen I also installed. I let my wife wear it once and she likes it too. August 16, 2015
Great Style, Great Protection Having owned other Arai helmets, I liked the styling and pro-shade features of the Defiant so I decided to purchase and I was not disappointed. This helmet fits very similar to the Signet Q and is very quiet on the road. The looks are killer. As Anthony mentions in his video, although the helmet is finished in mat colors, there is a hint of metallic in the finish to add more pop to the overall look. The Pro-shade works great but isn't a very dark tint and I like to wear my sunglasses under the shade on bright sunny days. The shade coverage is adequate but could drop a bit further down the mask. Overall, this is a high end, high quality helmet that is very comfortable and quiet. August 10, 2015
Mixed Feelings about this helmet To be honest, I bought this helmet for the reputation of Aria and that it had Orange in it! Which is hard to find. The things I have been disappointed in: It's LOUD at high speeds. Louder than my previous Shoei for sure. The paint chips so easily. Be careful, don't even let your girl bump her helmet on yours cause it will cause a chip. BUGS fly in so easily. This is probably my biggest complaint. The vents over the mouth have no screen filter, so if it's open and it's dusk on the highway on a hot day, they're in your mouth, eyes, or whatever they can get into. HATE that about this helmet. As for the things I do enjoy: Very comfortable. Fits snug and perfect for me. Moves well in high speeds, better than my last helmet. Lots of vents, though in the summer, I don't notice a whole lot of airflow. And great wide view. August 4, 2015
Streetfighter style with the Arai standard for comfort. I have a Defiant in the chronus Green graphic. First things first, I love this helmet. It is the best fitting helmet I have ever owned. However the fit took me a few try ons to figure out, because it runs a full size to big. I can fit into a medium comfortably, whereas I have a Large Arai Corsair V that fits just as snug. I am a large in most helmets, including HJCs and Shoei's. Fit wise, I find it to be neutral, a lot like a shoei qwest in fact. Rounder than a rf 1200, but not quite as round as my corsair v or my HJC's. I think the sizing difference has a lot to do with noise levels, since I found the defiant to be very quiet, contrary to other reviews. In fact its much quiter than the Corsair V, and my HJC IS-MAX BT. Its slightly louder than my father's Shoei RF-1200, due to the shield pod turbulence, but just barely. Arai designed the defiant specifically for standard and naked bikes, and you can absolutely tell. It flows air SO well in an upright position or in a 3/4 tuck. I wouldnt doubt that its one of the best flowing helmets on the market right now. My corsair V can only move this much air when in full tuck, and still its not quite the same. The shoei rf 1200 isnt even in the same ballpark, my head gets hot immediately in temperatures above 75 degrees. The arai probably wont be very warm in the early spring or late fall though. As for the aerodynamics of the defiant, their superb. I dont notice too much or a difference with the chin spolier, compared to the Corsair V, but the fact that it has the same lack of buffeting as the Corsair is Impressive. The rf -1200 is also very aerodynamic, on par with my Arai's. My only gripe is with the face shield. Im not a fan of Arai's side pod design, but understand why its there and how it works. Its not hard to install the shields once you get the hang of it, but theres so much friction that it seems like its getting unnecessary wear n tear. The Shoei RF 1200 has a much better design for the shields. Both the ease of removal and overall thickness of the shield itself are in a league of their own. Overall the Defiant is a great helmet, I would buy it again over another Corsair V. Simply because it works better with my naked bike, therefore has more bang for the buck. Once you pull an Arai out of the box, or off the shelf, you understand why they cost more and that you are getting what you pay for. What's your head worth. June 8, 2015
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Arai Defiant Chronus Helmet
Already Asked: 1 Question, 3 Answers
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RevZilla Store asked: Why did you choose this?
Michael T: best helmet I have ever owned. formerly a Shoei guy, but after wearing the Arai for just 1 day I could tell the difference in quality. weighs a few ounces less that the Shoei and my head never buffets around - awesome aerodynamics even at 120+ Sep 1, 2015
Andrew B: I ride a naked bike and was looking for a top quality helmet designed for my specific riding needs. Jun 18, 2015
Robert H: It's an Arai with great graphics and at a decent price. Jun 8, 2014

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

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Product Style RevZilla Item # Manufacturer Product # Availability
Black / 2XS 939740 818759 In Stock: Ships within 24 hours
Black / XS 939741 818760 In Stock: Ships within 24 hours
Black / SM 939742 818761 In Stock: Ships within 24 hours
Black / MD 939743 818762 In Stock: Ships within 24 hours
Black / LG 939744 818763 In Stock: Ships within 24 hours
Black / XL 939745 818764 In Stock: Ships within 24 hours
Black / 2XL 939746 818765 In Stock: Ships within 24 hours
Black / 3XL 939747 818766 In Stock: Ships within 24 hours
Yellow / 2XS 939748 818769 In Stock: Ships within 24 hours
Yellow / XS 939749 818770 In Stock: Ships within 24 hours
Yellow / SM 962711 818771 In Stock: Ships within 24 hours
Yellow / MD 962712 818772 In Stock: Ships within 24 hours
Yellow / LG 962713 818773 In Stock: Ships within 24 hours
Yellow / XL 939750 818774 In Stock: Ships within 24 hours
Yellow / 2XL 939751 818775 Out of Stock
Yellow / 3XL 939752 818776 Out of Stock
Red / 2XS 939761 818789 In Stock: Ships within 24 hours
Red / XS 939762 818790 In Stock: Ships within 24 hours
Red / SM 939763 818791 Out of Stock
Red / MD 939764 818792 In Stock: Ships within 24 hours
Red / LG 939765 818793 In Stock: Ships within 24 hours
Red / XL 939766 818794 In Stock: Ships within 24 hours
Red / 2XL 939767 818795 In Stock: Ships within 24 hours
Red / 3XL 939768 818796 In Stock: Ships within 24 hours
Green / 2XS 939753 818779 In Stock: Ships within 24 hours
Green / XS 939754 818780 In Stock: Ships within 24 hours
Green / SM 939755 818781 In Stock: Ships within 24 hours
Green / MD 939756 818782 In Stock: Ships within 24 hours
Green / LG 939757 818783 In Stock: Ships within 24 hours
Green / XL 939758 818784 In Stock: Ships within 24 hours
Green / 2XL 939759 818785 In Stock: Ships within 24 hours
Green / 3XL 939760 818786 In Stock: Ships within 24 hours