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Arai Defiant Helmet - Solid Colors
  • Arai Defiant Helmet - Solid Colors - Frost Black
  • Arai Defiant Helmet - Solid Colors - White
  • Arai Defiant Helmet - Solid Colors - Aluminum Silver
  • Arai Defiant Helmet - Solid Colors - Diamond Black
  • Arai Defiant Helmet - Solid Colors - Diamond Black
  • Arai Defiant Helmet - Solid Colors - Diamond White

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Video Reviews (3)

Arai Defiant Helmet - Solid Colors Videos

Arai Defiant Helmet - Solid Colors

Designed specifically for the aesthetics and needs of street fighter and naked bike rider in mind, the new Arai Defiant 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 Arai 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

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
Frost Black / 2XS 886233 818869 Out of Stock
Frost Black / XS 886234 818870 In Stock: Ships next business day
Frost Black / SM 886235 818871 In Stock: Ships next business day
Frost Black / MD 886236 818872 In Stock: Ships next business day
Frost Black / LG 886238 818873 In Stock: Ships next business day
Frost Black / XL 886237 818874 In Stock: Ships next business day
Frost Black / 2XL 886239 818875 In Stock: Ships next business day
Frost Black / 3XL 886240 818876 In Stock: Ships next business day
White / 2XS 886257 818989 Out of Stock
White / XS 886258 818990 Out of Stock
White / SM 886259 818991 In Stock: Ships next business day
White / MD 886260 818992 Out of Stock
White / LG 886261 818993 In Stock: Ships next business day
White / XL 886262 818994 In Stock: Ships next business day
White / 2XL 886263 818995 In Stock: Ships next business day
White / 3XL 886264 818996 Out of Stock
Aluminum Silver / 2XS 886225 818859 Out of Stock
Aluminum Silver / XS 886226 818860 In Stock: Ships next business day
Aluminum Silver / SM 886227 818861 In Stock: Ships next business day
Aluminum Silver / MD 886228 818862 In Stock: Ships next business day
Aluminum Silver / LG 886229 818863 In Stock: Ships next business day
Aluminum Silver / XL 886230 818864 In Stock: Ships next business day
Aluminum Silver / 2XL 886231 818865 In Stock: Ships next business day
Aluminum Silver / 3XL 886232 818866 Out of Stock
Diamond Black / 2XS 886241 818969 Out of Stock
Diamond Black / XS 886242 818970 In Stock: Ships next business day
Diamond Black / SM 886243 818971 In Stock: Ships next business day
Diamond Black / MD 886244 818972 In Stock: Ships next business day
Diamond Black / LG 886245 818973 In Stock: Ships next business day
Diamond Black / XL 886246 818974 Out of Stock
Diamond Black / 2XL 886248 818975 In Stock: Ships next business day
Diamond Black / 3XL 886249 818976 Out of Stock
Diamond White / 2XS 886250 818979 In Stock: Ships next business day
Diamond White / XS 886251 818980 In Stock: Ships next business day
Diamond White / SM 886247 818981 Out of Stock
Diamond White / MD 886252 818982 In Stock: Ships next business day
Diamond White / LG 886253 818983 In Stock: Ships next business day
Diamond White / XL 886254 818984 In Stock: Ships next business day
Diamond White / 2XL 886255 818985 In Stock: Ships next business day
Diamond White / 3XL 886256 818986 In Stock: Ships next business day


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Arai Defiant Helmet - Solid Colors 4.7 5 123 123
solid Nice as any Arai. The extended chin bar works as advertised. I think it's the best looking helmet in the Arai line. I have no idea why they don't put padding over the chinstrap like on every other helmet I've had. It becomes irritating unless I set it on the loose side. The eye port curves upward at the periphery and makes head-checking harder but I'm coming from a dual sport helmet with crazy visibility. It's not loud or quiet. There's a breezy noise all the time - not bad. Vents like a champion. Overall a good buy, mean looking helmet, high quality with some typical Arai design gimmicks: funky face shield, harsh chinstrap, dopey retractable chin spoiler, etc. It's a keeper. November 25, 2015
Great Helmet I love this helmet, from the ventilation, visibility, weight, style, comfort and protection. If you can afford it buy it. October 22, 2015
You get what you pay for. This helmet is comfortable, if you are going to be wearing a helmet for any extended period of time, most helmets start to have pressure points that will start to bother you, even when properly fitted. This isn't the case here. It is also surprisingly cool due to fantastic venting. If you are more interested in protecting your head than saving a buck I would recommend this helmet to anyone. October 5, 2015
Great Helmet Best fit of any helmet I have owned! Fantastic quality. Great airflow. November 9, 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
Excellent Choice, but a little too much airflow After riding about 1000+ miles with the Defiant, I am very pleased with my purchase. Previously I had a Snell rated helmet but the feel, comfort, and weight of the Defiant is light years ahead of the other helmet, which was a great helmet too. I live in Colorado so the weather varies. Currently fall is upon us which makes for cool mornings and hot afternoons. The Defiant works in the varying conditions well and the Pro-Cruise shield helps me transition from early morning to the day with no problems too. The Pinlock shield is works beautifully as the shield has not fogged up once sitting at stop lights. The only issue I have, and it's likely just a personal preference, but the airflow is almost too much in the cool mornings, even with all vents closed and the shield locked. I have found a work around though, by wearing a thermal head liner. Overall this is a great helmet and would recommend it to anyone. October 21, 2015
expensive but good This is my first high end helmet. I like the style, vision out the visor. I first bought the Shoei RF-1200 but exchanged it for this one because the head padding in the Shoei was not fixed and it would move in such a way that it would block the air intake vent holes. The Arai has much better venting and living in the Houston area it is really hot during the day. Couple of things that I don't like: The visor is hard to flip back up once locked down. I usually don't lock it down and just ride with it cracked. The padding around the cheeks is pretty tight. I peeled away the 5mm layers that are designed to come off and they are still tight. We'll see if they break in more over time. I like the chin strap. It doesn't rub or irritate my neck. Then venting is nice, especially the temple vents. Noise level is okay but I've really determined a lot of noise comes from turbulence around you. I ride a suzuki m50 with a screen and if I stand up on my pegs on the highway and put my head in clear air it's amazing how quiet everything gets. The pull down chin thing feature is a joke and does nothing. Arai would have been better off adding a good wind curtain like the rf-1200. Overall its a good helmet. The price is high though. October 19, 2015
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
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Arai Defiant Helmet - Solid Colors
Already Asked: 15 Questions, 88 Answers
Sort by:
RevZilla Store asked: Why did you choose this?
Bradford P: I like Arai's no compromise on safety approach that seems to translate from the track to the street. Additionally, I ride a Speed Triple and this helmet was made specifically for naked bikes. Lastly, I live in the hot, humid southern climate and I wanted a helmet that could provide excellent ventilation. Nov 22, 2015
George T: Best Protection! Nov 22, 2015
Maxim K: It fits my round shaped head perfectly! Great field of view, very aerodynamically balanced Oct 31, 2015
Martin M: So comfortable and the medium was too big! Oct 10, 2015
Jeremy R: My bike is a speed triple so it's time I jump up and invest in my head the best way possible. Aug 8, 2015
S C: Video Jul 27, 2015
gerald o: Needed some air. Jul 4, 2015
Edward E: Thorough research and previous experience with Arai helmets. Jun 9, 2015
john a: Read great reviews on this helmet & all were accurate! Very pleased with my purchase. Apr 11, 2015
C O: I was told this helmet would be the most comfortable .... like kittens on my head. How could anyone pass that up!? Apr 6, 2015
Rafael H: Perfect for my Monster 1200S Apr 1, 2015
Craig B: The detailed Revzilla detailed breakdown video! The SNELL 2010 rating, venting features, shield options and most importantly, it fits my head perfectly! Mar 14, 2015
David C: good reviews, have an RX-Q, wanted better circulation... Feb 20, 2015
James B: Long history with Arai; it's the only brand that fits my head. The Corsair V is my current helmet, but was too expensive this time around. The ventilation on the Defiant looks (on paper, anyway) that it will work well. Feb 8, 2015
Curtis B: Arai is the best helmet I have owned just pricy. Jan 21, 2015
Arron G: Legendary Arai quality. Their helmets have never let me down. Jan 9, 2015
Jeff M: Revzilla's Arai size/shape chart doesn't show where this new Defiant fits, but the Revzilla team (very helpful) stated that it's shape is a little more oval than the RX-Q. I ordered both the Defiant and the RX-Q and will pick the best fit. Nov 29, 2014
Sammy A: Coming from a Icon variant. I do like the looks of the Icon but man its not for me its too big and its not meant for up riding position.Ive read mixed reviews about this Arai so Im hoping some are wrong about what they have said, and the helmet is good for commuting on a naked bikes especially on the highway. Oct 23, 2014
edward l: I thought I've matured enough to have a good helmet. I thought I would keep this one intact forever. I thought I've ironed out all the bugs in my behavior which cause me to do things like drop a helmet. Is what I thought. Oct 11, 2014
Rennick H: Best helmet I've owned in 50 years of riding! Jul 20, 2014
Jeff F: Safety, style, product description for naked style bike. Jun 22, 2014
Mark C: The reviews from the other revzilla customers were very helpful - also the video was helpful Apr 19, 2014
J O: Style and fit Apr 17, 2014
William B: Replaced an older Arai helmet, that I was 100% satisfied with during many years of use. Selected Arai Defiant for the improved venting system. It also has fresh styling improvements and comes with pinlock fog reducing lense system. Apr 15, 2014
Johnny F: I have owned two Arai helmets in the past and tried this one on in a store in NYC, love the way it fits and know these helmets to be incredibly comfortable on long rides. Apr 13, 2014
Eric N: Currently I use a Shoei RF-1100 but began finding the helmet shaking at speed and want something built for a naked bike and hopefully with a little firmer fit along the temple and forehead. Apr 13, 2014
Nate R: It supposedly fits my head shape and I ride upright on KTM 950smr that its designed for. Mar 21, 2014
Vincent K: Hoping that this lives up to the hype with regard to stability at highway speeds. Also hoping that the aluminum silver looks as good in person as it does in the picture, dark metal rather than bright silver. 2014 FZ-09 Mar 16, 2014
Frank T: Fit, features and reputation Jan 20, 2014
Jeff F: The ARAI name is all that needs to be said here..... Nov 16, 2013
Marcelo H: Superb ergonomics, ventilation and designed for street and touring riding position with the reassurance of a new Arai product Sep 27, 2013
John R: After thorough research this was the brand that I felt would offer me the greatest protection of my brain and it is designed for the more upright riding position and wind angle based on the rider position on my Multistrada. Sep 9, 2013
Ben C: I wanted to try the 'Arai' head shape and I am so glad I did! It feels like I'm wearing a tube sock. A really quiet, safe, tube sock. Sep 6, 2013
Stephen V: Just purchased a 2013 Ducati Monster Diesel. After reading reviews and watching the revzilla video reviews, I realized this was the helmet for me. This helmet was designed for naked bike riders. Aug 26, 2013
Paul S: Revzilla had an excellent video review of this helmet that answered many of my questions. I could have purchased this locally but I found more of my questions were handled by Revzilla. They certainly know their products. Aug 25, 2013
A shopper asked: Hi, I'm trying to decide between an RX-Q and the Deviant. I currently have a small Corsair RX (perhaps from 2005? I got it used...) and love the compact shape, snug fit and understated appearance. Since I'm not sure how old it is and it's started to fall apart here and there, I've decided to replace it for safety's sake. Not sure why but somehow $700 is just a bit too much for a helmet, while $5-600 seems manageable and smart.

I'm female, occasionally (once or twice a season) ride the track, but mostly ride 3/4 street (upgraded my Ninja 250 for better performance and more cafe styled), typically anywhere from 20 minutes to 3 hrs on the bike at a time. I wear fitted earplugs, and am planning on installing a Sena smh 10r.
I'll ride in the brittle winter as the bike is my only transportation in New York (Upstate - but not so Upstate that I can't ride dry roads most of the year), so being warm is important to me, but I won't go so far as to get heated anythings, I'll catch a car-ride if it's that bad!

Onto the Q's:
- Is the Deviant TOO ventilated?
- Is the RX-Q a noticeably bigger shell than the Deviant?
- Will either of these be comparable to the Corsair RX in compact shell, cheek fit?
- The pinlock anti-fog lens is included with the Deviant, does this really make the difference? Cold weather brings that out quite a bit, and I've definitely had an issue with the Corsair fogging up.
- I'd like to get a shaded lens insert regardless of which helmet I get, but does the pinlock design make this an easier switch if I'm on the road from light to night or vice versa? (Sunglasses under the helmet make annoying double polarization colors, so I ride without shades in the day. Would be nice to have a quick fix in the tank bag.)
- Pricing btwn the RX-Q and Deviant seems about the same after Pinlock shield is factored in, do you have any other advice based on my criteria?
- Is it worth the extra $1-200 for the new Corsair for my needs?

Thanks for any answers you can give.
Sep 9, 2013
Answer this · Send to friends Good question? Yes (1) No (0)
Alex W: -This helmet is not too ventilated since you can close the vents
-The Rxq is actually a noticeable smaller shell than the defiant
-The cheek fit does resemble that of the corsair V
-I find the pinlock to work well for anti-fog, since the built in breath-guard doesn't help that much with colder mornings

One huge determining factor between the Defiant and RXQ is weight. The Defiant is MUCH heavier than the RXQ. Even just holding it in your hand, it is definitely heavier than all the other ARais and most Shoei helmets.
Oct 18, 2013
Reply to Alex Good answer? Yes (6) No (0)
Rossen C: He there,
I'll try to be brief and get straight to your questions.
- The Defiant is very well ventilated, but all vents are easy to close and there's the Arai hide-able chin curtain that helps keep air and noise out. I'm from Los Angeles, so I don't know how well the Defiant performs in cold weather as it just doesn't get that cold out here.
- I don't think the size difference between the RX-Q and the Defiant is significant, though they are somewhat differently-shaped helmets (the Defiant being for naked bikes). The Defiant has a spoiler below the chin to help direct air and is a bit flatter below the RX-Q, from what I can tell.
- I don't own a Corsair so I can't help there.
- The pinlock is probably the best thing ever invented! It makes a hell of a difference in that it NEVER fogs up. Ever. My last 3 helmets have pinlocks, it's that great.
- I have the dark smoke pinlock in my Defiant and can see fine with it at night though I carry around the clear one, just in case. Swapping them is trivial (once you get used to taking out the visor on Arai helmets, which seems to scare some people), you essentially bend the visor outward and the pinlock is easy to pull out and replace.
- Since you're riding a sports bike you probably won't experience the effectiveness of the Defiant on a naked bike but it's nevertheless an excellent helmet, fairly quiet and with great ventilation for warmer days. Again, not sure how it would perform in cold. The pinlock is definitely worth the extra money, in my opinion.
Hope this helps. Ride safe!
Sep 20, 2013
Reply to Rossen Good answer? Yes (0) No (6)
Kelly M: Unfortunately, I am a female rider but my conditions and preferences are totally different than yours. I can't help with most of your questions. I also haven't used any of the helmets you mentioned. Sorry! Here is what I know so far though:
This is my first high end helmet. I agree the helmet is pricey, but as I compare it to others I have (Scorpion, Rock Hard, and another whose name escapes me) it feels very solid. I wish there was a shield lift on both sides instead of just the left (I'm right handed). I also wish they would use the quick releases that Nolan does, but most manufacturers don't.
It has been super hot so I can't say if it is too vented.
I mostly ride a modified Boneville so I'm more cafe style that straight up. I don't wear earplugs and I bought this helmet because it was supposed to be quiet. I didn't think it was any quieter than my cheaper modular.
I also haven't changed out the lens. I wear sunglasses with it. Not my preference, but they also don't make internal visors.

Sorry couldn't help more.
The anti-fog is nice.
Sep 19, 2013
Reply to Kelly Good answer? Yes (0) No (6)
A shopper asked: I ride a streetfighter 848 with a shoei 1100 lid. Unfortunately getting lift at highway speeds and am looking to change to either another Shoei GT Air or arai Defiant. Would you recommend one over the other?
Cheers Kim
May 11, 2014
Answer this · Send to friends Good question? Yes (1) No (0)
Peter V: I have the Defiant and have had NO issues like that
with mine, best helmet ever worn.
May 11, 2014
Reply to Peter Good answer? Yes (2) No (0)
A shopper asked: I am looking for a quiet helmet. Regardless of price. I have a medium size (female) head. This one gets decent ratings, so it is at the top of my list. I ride 3/4- upright, street/city riding on a naked bike, and in Southern California heat. Again, this looks like it could be a good fit. Any thoughts about the noise level on this or a recommendation for something different? Aug 10, 2013
Answer this · Send to friends Good question? Yes (0) No (0)
Donald S: I love this helmet! I previously owned an Arai Profile, wich i found extremely comfortable, but noisy. As for the defiant it is extremely comfortable, great ventillation, great visibility(visor) and no fog. I ride a 2012 FJR1300 on mostly highway roads, i keep my windsheild in it's lowest setting. The defiant is much quietter then my Profile was and a worlds quitter then the HJC i once owned. I live in Canada so i can not say how it will be in the california sun, but during 45c temperatures I was fine.
Hope this helps...

Hemmingford, québec
Aug 12, 2013
Reply to Donald Good answer? Yes (0) No (0)
Ryan C: Hello, I ride a 2013 ducati streetfighter 848. I bought this helmet for the same purpose. Naked goodness. Well I cant really speak about how noisy it is because all I owned were arai helmets. But compared to the corsair v it isnt as noisy. It could just be in my head. But I will tell you this. It flows a ton of air. I wear a skull cap under the helmet and I still feel it. I really like how it looks and functions. I do not use a bluetooth or earbuds while riding. So I cant say how noise level would affect. But I say you cant go wrong with this lid. Aug 13, 2013
Reply to Ryan Good answer? Yes (0) No (0)
David S: I too am in Southern California and have to say that this is the best venting helmet I have owned. I also ride in a Shoei RF1100. I did have some trouble with wind noise when I first started wearing this helmet. However, I have switched to different earplugs and that resolved the issue for me. By far this is the most plush helmet I have owned. Great build quality and moves a ton of air on those warm SoCal days. Aug 12, 2013
Reply to David Good answer? Yes (0) No (0)
david c: I love this helmet. It's pretty quiet with the vents closed. It gets louder when the vents open. I ride in Utah heat, so I depend on great airflow. And the defiant seriously delivers. With the mouth and the brow vents open it feels like an open face helmet. Also the arai sai face shield fits it. So u can get a full tint instead of just a pin lock tint. Compared to my old icon , this helmet is a god. Aug 12, 2013
Reply to david Good answer? Yes (0) No (0)
Jesse J: I've only used the helmet once but it doesn't seem to be the quietest. It did flow air very well which was one of my main concerns. My other was stability at highway speeds. I ride a street triple and my old helmet was a trap for air in an upright position which gave me neck cramps from shaking so much. For me it was a perfect helmet on a naked bike. I hope this helped a little Aug 12, 2013
Reply to Jesse Good answer? Yes (0) No (0)
Aaron C: I have not had a ton of time with is lid yet however my first impressions are that it is awesome. So far it seems quiet and the air flow even with the shield all the way down is the best of any helmet I own or have owned which is quite a few over the years. I live in Arizona and have used it in +100 heat and think the ventilation is really good. I recommend this helmet Aug 12, 2013
Reply to Aaron Good answer? Yes (0) No (0)
Brian D: What I can tell you that it is more quiet than my Bell helmet. Most people say you should wear ear protection anyway. I don't find the noise excessive on short rides, but I would imagine it could be fatiguing on longer rides. Otherwise, I think it is a fantastic helmet: light, well-made, with great ventilation. Aug 15, 2013
Reply to Brian Good answer? Yes (0) No (0)
Charles G: I ride upright with this helmet on a either a cruiser or traditional style (79 BMW). The helmet fire comfortably everywhere and I can actually feel the ventilation on a 70ish degree day. Can't tell much difference in cooling ventilation on really hot days…it's just hot. An integral sun visor would be nice. Apr 28, 2014
Reply to Charles Good answer? Yes (0) No (0)
William P: I love my helmet. I don't know about California heat, but it does good in Maryland heat. Fits good, but it has a little extra cheek padding. I really noticed the different when turning my head sideways at highway speeds. Noise level is low to me, but that may be subjective. Aug 13, 2013
Reply to William Good answer? Yes (0) No (0)
Tony M: This helmet is very quiet. I ride a triumph thunderbird with a small windshield. I've been in wind, rain, fog etc. and it's quiet, dry and the pinlock system is fantastic. This helmet also flows a lot of air. Aug 12, 2013
Reply to Tony Good answer? Yes (0) No (0)
Paul M: When all vents are closed it's very quiet when all vents are open it's kinda noisy. ventilation is exceptional. Wirral and neck roll prevent wind noise and buffeting well. Great helmet...I love mine Aug 12, 2013
Reply to Paul Good answer? Yes (0) No (0)
Peter V: best helmet I have ever worn, noise level almost zero, love the inter shield, easy to install, my first only two days old when it was put to crash test on the gravel, saved my head ! :-) Aug 12, 2013
Reply to Peter Good answer? Yes (0) No (0)
Shlomo B: Noise is a little better then previous versions but it is still a full face helmet. Earplugs are always recommended. Aug 12, 2013
Reply to Shlomo Good answer? Yes (0) No (0)
Calvin B: I have two Arai RXQ helmet's, I have ridden with for over a year and really like them.
Decided a few months back to try the ARAI Defiant and It seems to me to
have better air flow in the helmet than RXQ and the RXQ was very good.
Also seems I can hear the motor better, road noise very good just like the RXQ. My head measures 57 1/2 cm and all three of my Arai's I got in a large.
Ever since I have used an Arai helmet I can not go back to my others, most comfortable helmet I have worn..
I live in Mississippi so the heat and humidity is extreme.
I also think the pinlock lens system will be great in fall and winter.
I added a dark smoke pinlock lens, came with clear.
I ride an upright bike mostly city country.
Aug 12, 2013
Reply to Calvin Good answer? Yes (0) No (1)
Big Daddy's T: The Defiant is my summer helmet, I wear my Arai RX-Q in winter. The Defiant is basically an RX-Q just bigger air ports that move tons of air like an off road helmet. As far as quiet, just like the RX-Q, it is the most quiet and aerodynamic street specific helmet you can get. I ride a "naked" Victory High Ball and at 90mph you can turn your head to look and change lanes with out any wind buffeting. Read carefully and measure your head exactly and get the smallest size you can, it should feel tight going on, but once you have it on and strapped up you will not even know it is there. I live in Brentwood Ca and this helmet breaths even in 100 degree rides. Arai, best helmets ever for the most valuable thing you have, your brain:] Aug 12, 2013
Reply to Big Daddy's Good answer? Yes (0) No (1)
John R asked: I have previously asked about the size and it looks like a medium will be a good fit. However in regards to Shell size or comparison, "If I fit into a Medium Vector 2, will the Defiant fit in the same fashion?" Apr 24, 2014
Answer this · Send to friends Good question? Yes (0) No (0)
Jose C: I bought this helmet bc reviews said tjat it was the same fit as the rx-q. So I ordered it as soon as it got to my house I put it on and instantly I knew that, that was not true. But I left it on for an hour to give it a chance since it was new I thought maybe the liner needs to settle in. Although that was not the case and I ended up driving to revzilla a little over 2 hours away. And ended up getting the shoei x-12. Apr 25, 2014
Reply to Jose Good answer? Yes (1) No (0)
Richard G: It's always best to try a helmet on and verify fit with a knowledgable professional.

If you know that you are a medium in the Vector 2, then you will be a medium in the Defiant as well.

Keep in mind head shape with your decision. Being the right size is different from being the right shape.
Apr 24, 2014
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Glenn W: Hi John. You shouldn't have any issues fitting into a medium Defiant. The shell shapes are the same according to Arai's website. I perviously owned a 2001 Arai Quantum /f in medium. I just bought a 2014 Defiant in medium and it fits great. I also tried on the RX-Q and Signet-Q in medium and they all fit. Apr 24, 2014
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EDWARD E: Yes. The Defiant will fit like the Vector 2. Intermediate oval shape. This is a premium helmet that will not disappoint. Apr 24, 2014
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Sean H: From my Arai experience, I find it to be true to size. I'm a large in the Defiant as well as XD3 and Quantum 2. Apr 24, 2014
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A shopper asked: I live in Wisconsin and do cold weather riding. Will I stay warm in it? Thanks Hannah Apr 22, 2014
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Kurt N: I wouldn't say this helmet is particularly good in colder weather. Even with all the vents closed, a lot of air still moves through it. That being said I used mine on some mid-20 degree mornings with a balaclava and was fine. The pin lock lens 100% works at keeping the lens from fogging up, which was always my biggest problem with my previous helmet. Apr 22, 2014
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Hassan M: I ride down to 20*F but the helmet alone will result in a cold neck or foggy screen. The pinlock helps a ton with the foggy screen. A balaclava will help with the cold. It is THE way to go. I love the helmet. Apr 22, 2014
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John B: Even with all the vent options closed, there's a good bit of airflow through the helmet. You would need a thermal head cover and neck gaiter at the very least. Apr 22, 2014
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Fred B: I have two arai helmets, the defiant is the best, however is not great when it's cold but the best in the summer. Apr 23, 2014
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Andrew H: Get a Quiet Rider skirt from NOJ. They make summer and winter versions. Also cuts down on wind noise. Apr 22, 2014
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Alex B asked: What about this helmet is designed for naked or streetfighter style bikes? Base on the reviews, it is obviously very loud, which seems contrary to something that was designed to handle the large quantities of direct air-flow you get on a naked bike. Also, the extra venting seems like it would be far more beneficial behind a faring and windscreen where airflow is more limited, instead of completely exposed where air-flow in ample.

Rolling on a 2013 Street Triple R, and love the look of this helmet, but no looking to go deaf in the process.
Thanks in advance!
Nov 28, 2013
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Catherine B: Most helmet venting systems are located so they are into the wind in a tucked riding position but still aren't very affective at flowing the amount of air necessary to keep the rider comfortable. I ride an M109R without a windshield and my original helmet was a Shoei RF1000 and the venting was horrible even with my head out in the wind. The vent orifices on this helmet are located and positioned for maximum air flow. Behind a windshield, this would definitely be the best choice of helmet given the obstruction from the windshield. On a bike without a windshield, the airflow is extraordinary. It does a phenomenal job of channeling the air to keep the rider cool which is why it isn't as quiet as some other helmets on the market. The noise level is not that loud considering the airflow. -Jason Nov 30, 2013
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Alex B: I appreciate the info from everyone. I went down to the local shop today and they finally had one to try on. Fit was great, finish was top notch as expected. I realize that noise in a helmet is more subjective than some of the reviews allude to; with the bike and height being major factors that change the experience for everyone. All things considered, the look is killer, pin lock included, and as safe as they get. Pulling the trigger on a Frost Black Defiant today! Nov 29, 2013
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steven D: I done about 1000 miles with this helmet riding a 2009 tuono. I wouldn't say its loud but it does flow air very well the only helmet I've ever had that I've closed vents on. It's also extremely light so you can hardly tell you have it on. Also did some miles in the rain with the pin lock you def don't get any fog. Over all very good helmet Nov 28, 2013
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Andrew H: I came out of a Quantum/s and found that the noise level is about the same with the Defiant. The fit is excellent, possibly even better than I had with the Quantum, so I don't understand why it's not quieter. I don't have any other helmets to compare it to so my opinion is fairly subjective, though. Nov 29, 2013
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Hassan M: I would guess that the angle of attack warrants the "street fighter" tag, minimizing neck stress. I ride (daily) a 2009 Ninja 500R, which has that 3/4 riding position. Placed in a wind tunnel, certain configurations prove advantageous (geometry alone). At a full lean (supersport), you would expect a certain configuation, cruiser another, and sport yet another. So, I am sure that the primary design criteria was to create laminar flow about the helmet, given "typical" windstreams.

Regarding weight, the helmet is really light, further minimizing neck stress. As far as noise is concerned, it is a bit loud at highway speed (live+work in the city). As a commuter primarily, I want to hear what is going on around me. I could easily place a plug in each ear but it does not bother me at commuting speeds. Even on the highway, I am not bothered. It's tough to damp 70-80 mph wind noise without making the helmet dead silent at low speeds.

In the end, I wanted a helmet designed protect racers, made for street bikes, and was "reasonable" in cost. It's a great helmet for me.
Nov 28, 2013
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A shopper asked: I have asked a question regarding sizing already and it looks as though I will go with a medium based on Measurement. However just wondering, "If i fit a Vector 2 with a medium, will the Defiant fit in a similar fashion ? :) Thanks Apr 24, 2014
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Paul P: Short answer: Yes as long as you go with the right head shape too.

Long answer: I have an oval head and wear an extra small Defiant. It's snug and very comfortable. Before I took the plunge to buy one, I went to a local mc dealer who had Arai helmets. They didn't have the Defiant, but I tried the RX-Q and Vector 2 in oval shape and tested out the sizing. I thought I was going to be a small because of my measurements, which is right on the low end of fitting into a small. After trying some on, an extra small fit better overall. I ordered the XS oval Defiant from Revzilla and it's been happy riding every since. I really like this helmet.
Apr 26, 2014
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William B: I was replacing an older Arai, sized medium, that was similar in shape to the newer Signet-Q. When I tried on the Signet-Q, the medium was a little too big but the small was too tight. The Defiant medium felt slightly too large, but the design/shape worked great in a small (which is what I purchased). My advice is that if you are borderline small/medium, then trying both on is the only way to be sure. Otherwise I would guess that medium Vector2 would imply that a Defiant medium is fine. Apr 24, 2014
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john a: Not sure abt the Vector, but I originally bought two helmets, one sm. and one med. I eventually returned the small. Much more comfortable was the med. Still snug but not like the sm. So now I have two meds. Apr 24, 2014
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Kevin K: I'm not familiar with the Vector 2, I went from a HJC modular to the Defiant. The sizing was close but I had to get the smaller cheek pads to get proper fit. Hope this helps. Apr 24, 2014
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A shopper asked: How well does the Defiant accept bluetooth comm systems? I am considering the Sena SMH10R, Cardo G9, or Intervoice F5 XT. I believe any of these will need to use the adhesive pad as the clamp will not fit, but I am concerned about room for the speakers. Thanks! Nov 20, 2013
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Erin D: No problem fitting the SMH10R in my Small Defiant helmet. Think Oreo cookies. I actually put on the extra little disc padding that comes with the Sena to bring the speakers closer to my ears.
Just remember: everyone has a different shaped head, so if you try putting Oreo cookies in and you just end up eating them as you put on the helmet cuz it's too tight, you should get more Oreo cookies.
Nov 20, 2013
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Jesse J: I don't see an issue with most speakers fitting with this helmet. I have a Sena conmunicator installed in mine, not sure what model. Watch the mic placement because the mouth vents are large and let in a lot of air that can cause noise in the headset. I placed the mic in the upper corner almost under the foam. Nov 20, 2013
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ian s: The SMH10R installed very easily. You will likely need to use the adhesive pad to mount the microphone since there is not enough room for the boom mic. Plenty of room for the speakers. Nov 20, 2013
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Kelly M: Sorry, can't help with that question. I'm not using any comm systems right now. Nov 21, 2013
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Mark S asked: I have an RXQ I have been riding in since they came out. The venting is non-existent. I also have an XD3 i find the venting to be pretty good (but I sure hate those fiddly little vent levers). How does the Defiant compare? Trying to decide whether to upgrade to the Defiant or buy a new XD4. Bike is a 950 Adventure. Thanks! Sep 20, 2014
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Randall F: I have been riding RF-1100 for the last few years. Have ALWAYS loved how quiet the ride was, how snug the fit was. Never knew I had "venting issues" until I tried the Defiant.
It was my friend's and the size was a bit off, but I had a pretty good idea of what that huge vent at the mouth was capable of.
I ordered mine within the week and I now ride with it "almost" exclusively. I say "almost" for one simple reason: it IS a bit louder/noisier than my RF-1100.
I would have to say that it depends on the bike.
I ride a 1976 BMW R90/6, no windscreen or fairing to speak of. With this bike, the DEFIANT cannot be beat. I also have a 2011 BMW F650GS, WITH a windscreen. On this bike, no matter HOW I sit, the helmet REALLY whistles. I have to wear soft earplugs. I installed a Bluetooth speaker system... Cardo system. Not the most expensive one. The unit below. It actually helps deflect the wind noise a little. It also works wonders for Bluetooth.
Anyway... Hope this helps.
Personally, I LOVE the DEFIANT. VENTS well and SUPER COMFORTABLE. Just depends on the bike and seat position.
(Oh... on both my bikes the seating position is pretty upright.)
Sep 22, 2014
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Aaron C: Mark, I can't compare the other two helmets you list since my last was a Shark. I can tell you that I do like this helmet and it vents nicely and they are easy to operate. It's build quality is what you would expect from Arai, its really, really good. It is actually very quiet as well for a helmet that vents well. I ride a Tiger 1050 so it would have a similar seating position as your 950 (which I have also owned btw) anyhow I would recommend this helmet for riders with an upright seated bike. Good luck with your decision..... Sep 22, 2014
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luis m: i can't compare the two because I've never owned an XD3 but i can't definitely tell you about the defiant All in all its a great helmet it does have great ventilation i haven't had any of the issues that other people say that its too loud i feel its fine as i drive a yamaha stryker. the helmet is a round shape helmet and its mainly for an up right position. you will love the helmet i love it my self Sep 23, 2014
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A shopper asked: What is the difference between the "White" and the "Diamond White" finish????
Some better photos or someone's feedback would be helpful!
Mar 28, 2014
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Jesse J: The "white" is just a pure gloss white. The "diamond white" is a pearl with a slight metal flake white. I ride a 2012 triumph street triple in crystal white and it's almost a perfect match. Mar 28, 2014
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Peter V: I have the Diamond White....and SO glad I ordered it, everyone loves it, much brighter and noticed by everyone. Mar 28, 2014
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Paul P: The diamond white has a more gloss finish, shiny. The white is more matte. Apr 26, 2014
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Edward Q asked: Any recommendations on helmet headsets? Aug 10, 2015
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luis m: I'm sorry edward i don't use headsets while i drive motorcycles so i would know of any recommendation for this helmet sorry wish i could help Aug 11, 2015
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KEVIN L: I have the Cardo scala rider G9 in my Defiant. It works perfect! Aug 12, 2015
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A shopper asked: The diamond white color looks very "metallic", is the diamond black the same way? I've tried to find other pictures online and some make them look like just plain white and black finishes. Nov 26, 2013
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Donald S: This helmet is more of a flat black with a hint of metallic. It is not a bright flashy color in black. Hope this helps. Nov 26, 2013
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Andrew H: The diamond black is a very fine, subtle metallica finish. Classy and understated, IMO> Nov 29, 2013
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A shopper asked: Do you think this will be meet the upcoming 2015 Snell Standards like the Shoei RF-1200 you mentioned in another video? Apr 10, 2014
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Donald S: I have no way to answer if it will meet 2015 standards. I previously had an arai profile and when i had my accident it probably saved my life. It took the blunt of the dommage and left my able to get up and walk away. In my opinion and experience, Arai is above and beyond safety standards already. Apr 10, 2014
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brian m asked: will the cheek pads and face shields from a vector 2 fit the defiant and vice versa? Nov 20, 2014
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