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Arai Defiant Base Helmet
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  • Arai Defiant Base Helmet - Frost Black/White
  • Arai Defiant Base Helmet - Frost Black/White
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  • Arai Defiant Base Helmet - Frost Black/Orange

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$749.95
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$225.00
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$524.95

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Video Reviews (4)

Arai Defiant Base Helmet Videos

Intermediate_oval
Shape: Intermediate Oval

Weight: 3.73 lbs

What's this?

Arai Defiant Base Helmet

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

Features:

  • Aggressive new styling
  • Internals are redesigned with a focus on safety and comfort
  • Organic shell shape for superb energy management
  • IC-4 Upper Intake vents seal more completely when closed
  • 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
  • Shell shape is easier to put on and take off
  • 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 2015 certified
4.6 / 5
Bang For The Buck
4 / 5
Protection & Durability
5 / 5
Features
5 / 5
Comfort
5 / 5
Style
5 / 5
Air Flow
5 / 5
Noise Level
Quiet
 
Loud

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
Frost Black/White / 2XS 886203 818829/A35550 Out of Stock
Frost Black/White / XS 886204 818830/A35551 Out of Stock
Frost Black/White / SM 886205 818831/A35552 Only 1 Left: Ships next business day
Frost Black/White / MD 886206 818832/A35553 In Stock: Ships next business day
Frost Black/White / LG 886207 818833/A35554 In Stock: Ships next business day
Frost Black/White / XL 886208 818834/A35555 Only 2 Left: Ships next business day
Frost Black/White / 2XL 886209 818835/A35556 In Stock: Ships next business day
Frost Black/White / 3XL 886210 818836/A35557 Out of Stock
Frost Black/Orange / 2XS 886195 818819/A35540 Out of Stock
Frost Black/Orange / XS 886196 818820/A35541 Out of Stock
Frost Black/Orange / SM 886197 818821/A35542 In Stock: Ships next business day
Frost Black/Orange / MD 886198 818822/A35543 In Stock: Ships next business day
Frost Black/Orange / LG 886199 818823/A35544 In Stock: Ships next business day
Frost Black/Orange / XL 886200 818824/A35545 In Stock: Ships next business day
Frost Black/Orange / 2XL 886201 818825/A35546 In Stock: Ships next business day
Frost Black/Orange / 3XL 886202 818826/A35547 Out of Stock

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We show real-time availability on this product page when you select the size/color item you want.  Most items will ship the same business day an order is placed,however if an item requires additional processing time a message will be shown indicating such.

See our full Shipping Policy for further details.

Returns

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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4.6 / 5.0
14 Reviews
5 Stars
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1 Star
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3.9 / 5
Protection & Durability
4.5 / 5
Features
4.2 / 5
Comfort
4.6 / 5
Style
4.6 / 5
Air Flow
4.5 / 5
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3 / 5
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4 / 5
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3 / 5
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5 / 5
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4 / 5
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5 / 5
great fit, great aerodynamics, too noisy, a bit janky
i'm upgrading from a Shoei RF 1000 with this helmet and at half the price, the Shoei was quieter and felt more solid. while visually i like the aesthetics of Arai's covered visor hinges, they're a bit too fussy and fragile when removing the visor for cleaning. when i close or lift the visor, the ratcheting sound isn't solid and sure like the Shoei. it feels and sounds brittle like something is being stressed or is about to break. also, it only has 3 positions: fully open, fully closed and then slightly ajar.

the Max Vision shield pin lock business is equally as fussy to set up and i've not yet determined it's value or advantage. i almost lost one of the pins when installing the shield and it just made me question it altogether. having to set up this brand new helmet that i'm completely unfamiliar with by reading the microscopic instructions and confusing illustrations and photos was such a great test of my patience with an expensive helmet.

i have to admit, the airflow and vents on this helmet are supreme. if i lived in a hot/humid climate that would account for a lot. but living in the SF bay area, that's only an issues for maybe 1 month total time in a year. i have yet to find a helmet that has vent levers that don't require walking my fingers across the helmet while riding to determine their location. and this helmet is no different. easily accomplished without gloves, but i never ride without gloves. so...

and honestly... 3 logos? are you fricking kidding me? that was the one thing about the looks of this helmet that kept me from buying it for almost 3 months... i finally decided that it's aero qualities outweighed the pummeling brand presence. for as much as this helmet costs, i shouldn't also have to be a billboard for the company.

but finally i'll say that the fit of this helmet is perfect for my head, it feels very light and balanced and there is zero buffeting encountered. my current bike does not have a windscreen of any kind, and this helmet was highly praised for that kind of riding. on that note, it delivers.

the downside of buying any helmet is that you have no idea of it's performance on your head, on your bike in the conditions you ride in until it's too late to return. i wished i had spent a few extra bucks and gotten the Schuberth C3 Pro or saved a lot of bucks and stayed with the Shoei.

while i give the helmet 4 stars, the value for the money isn't there and for that reason i can't recommend it to others.
September 22, 2014
Protection & Durability
5 / 5
Features
5 / 5
Comfort
5 / 5
Style
5 / 5
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4 / 5
Perfect replacement for Long-Oval Profile/Signet Lovers
The Arai Defiant is the long awaited replacement for my aged Profile helmet. If you're an "Arai head" i.e. long oval, you _have_ to try this one. As always, I'm thrilled with RevZilla service! I got an e-mail availability notice, ordered & had the helmet 3 days later. It's a _perfect_ fit (BTW, I wear a XXXL).

But wait...there's more - a clear Pinlock anti-fog visor was included!

Anthony - you & Team Zilla ROCK!

PS - written by GM, Janet's S.O.
August 15, 2013
Ride:
2011 Husqvarna TE630
Bang For The Buck
5 / 5
Protection & Durability
5 / 5
Features
5 / 5
Comfort
5 / 5
Style
5 / 5
Weight
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5 / 5
Great Helmet, I ride a 1290 Super Duke R, this is perfect
The helmet is well made, finish is perfect. The pin lock shield works perfectly and is easy to install. The helmet shield is very easy to install and remove. The ventilation is amazing. I am in Texas, on a 100 degree day, the helmet passes enough air to help keep you from sweltering. The air flow is amazing, I went to this helmet from a Shoei X-12 and the airflow is at least double. There is more noise, from the air flow, but you can always reduce the flow easily enough. The fit is perfect for me. The straps are easily used. The helmet has been comfortable on rides of 100 or more miles in high heat.
Great helmet, I thought it worth the money.
August 5, 2014
Bang For The Buck
4 / 5
Protection & Durability
4 / 5
Features
4 / 5
Comfort
5 / 5
Style
5 / 5
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5 / 5
Great helmet for Las Vegas
This I believe is the best helmet I have owned and I've had quite a few. The fit is great although some times the breath shield tickles the tip of my nose but not often enough to be an issue. This is a GREAT summer helmet breathes better than any helmet I have worn very cool during the summer months (120+ here). That said it is now cooling off and even with all the vents shut there is still a breeze inside around my upper lip that I cant get to go away. Living in Vegas this is not an issue as it's only cold here for 2 months. Now let me tell you about why I love this helmet. It cuts right through the wind and it gets windy here. In my old helmet the wind would buffet my head all a round and make it very difficult to look forward (a real pain in the butt around turns) this thing cuts right through. It actually allows me to ride better! My only other issue wit the helmet is with the pinlock system installed (both clear) there is a bit of a starburst effect at night when approaching head/street lights. It's not at all debilitating but it can be a bit distracting. In all fairness my night vision is not the best so it probably bugs me a little bit more. Been riding with the smoke pinlock it's not dark enough (they never are for me) and there has been zero fogging so that feature seems to work well.
October 9, 2013
Ride:
2012 Yamaha FZ8
Bang For The Buck
3 / 5
Protection & Durability
3 / 5
Features
4 / 5
Comfort
5 / 5
Style
4 / 5
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3 / 5
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
Ride:
2005 Buell XB12R Firebolt
Bang For The Buck
4 / 5
Protection & Durability
5 / 5
Features
3 / 5
Comfort
5 / 5
Style
4 / 5
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5 / 5
Know What This Helmet is Good For...and not!
Bottom line right up front: I think this is the best possible helmet you can buy for very hot weather. If you have a 'helmet collection' it would be a perfect niche helmet to add. If you are looking for an all season, all around helmet, I think there are much better choices.

What this helmet is great for:

* this thing ventilates like MAD! When it's a hot day, this is the only go-to helmet for staying cool. Check it out: eyebrow vents, 2 slider vents on top, an ENORMOUS vent right in front below the shield, another huge slider vent in back, plus an air exhaust port at the bottom of the helmet.

* Great wide vision, and it's really fun to try out different Arai custom color face shields or change them out for different conditions. I like the mirror the best, personally.

* For a large size helmet, it is very comfortable and super lightweight. It feels like nothing on your head....awesome. And it fits well.

* Arai reputation for safety makes you feel secure. Plus there are always a lot of great designs for Arai helmets. Also Arai makes their helmet very 'serviceable' -- spare parts are readily available such as extra cheek pads in different sizes, etc.

Now for the drawbacks:
* 3 great big logos ....a bit much perhaps, even for brand fans.

* The chin strap is old school webbing and D-ring...no soft nice comfy non-scratchy material (like Schuberth).

* This helmet is quite large. I have the Medium and it's much wider and taller than a Shoei or Shuberth C3Pro. (It's the only one that won't fit in my top box). I realize that the dimension is probably due to Arai's safety commitment, and it's light and comfortable, and looks good. It's just BIG.

* Now for the biggest issue: I figured out why this helmet is so very loud on the highway. I didn't really notice it too much on side streets but my first time on the freeway, it was so noisy that I actually exited to take it off and put in my earplugs. This helmet is designed with no 'curtain' (if that's the right word) which other helmets typically have just below the chin. Usually this piece can be removed for hot weather, at the expense of some increased noise, but with the Defiant, it's just not there. The good thing is that this only contributes to the amazing air flow of this helmet, which you'll appreciate in hot weather. the bad news is that when you need it to seal up (a chilly morning, or going on a longer highway trip) you may miss having that piece seal up the bottom of your helmet.

So in summary, this is a terrific hot weather helmet, but I don't think it has the flexibility to be your go-to all year lid.
May 18, 2015
Purchased
1 year ago
Ride:
2014 Honda NC700X ABS
Bang For The Buck
5 / 5
Protection & Durability
5 / 5
Features
5 / 5
Comfort
5 / 5
Style
5 / 5
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5 / 5
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
Ride:
2005 Yamaha FZ6
Bang For The Buck
4 / 5
Protection & Durability
4 / 5
Features
4 / 5
Comfort
5 / 5
Style
4 / 5
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3 / 5
Great Street Helmet for Naked Bikes
The helmet fits similar to Shoei helmets (X-12, and RF-1200). Intermediate Oval. Easy to put on and off, and has decent airflow with the vents open. I noticed that it's not that great in a tucked position with your head down, but riding upright, the air just goes around without pushing your head around. All in all, it's a great street helmet. The matte black finish is easier to clean that the matte black from Shoei. The Shoei matte blacks seems to absorb every fingerprint.
June 16, 2014
Ride:
2013 Ducati Monster 1100 EVO
Bang For The Buck
5 / 5
Protection & Durability
5 / 5
Features
5 / 5
Comfort
5 / 5
Style
5 / 5
Weight
Light
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5 / 5
ARAI got "Harley color" black & orange!
Way better than my Harley full face. A lot more air in and out (as says in the video), and much much more lighter than my old one as well. I can tell this helmet has a very good aerodynamic ( even at mid speed, 65~85mph, upright position). Love this helmet!!! Since it comes with pinlock, I personally think you get more for the price, comparing with RX-Q.
Yes! It's not a cheap helmet, but you get what you pay for, ARAI !!
April 16, 2014
Ride:
2014 Ducati Monster 1200 S
Bang For The Buck
4 / 5
Features
5 / 5
Comfort
4 / 5
Style
5 / 5
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5 / 5
replacement for my Vector 2
Vector 2 used to pinch my ears on long rides, so I went for this new Defender, which I was told is slightly rounder. It worked. I just returned from a 1400 mile jaunt. Love the feel of the helmet, the new features, new ventilation system works well. Maybe a little noisier than the vector 2 and the field of vision for some reason does not seem as good to the sides as the Vector, but they use the same face shield so maybe it's my imagination. Ventilation was great, but days were not too hot so can't say more than that. Also not fair to comment on protection/durability because I have no idea beyond Arai's great reputation.
August 28, 2013
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Browse 30 questions Browse 30 questions and 97 answers
Why did you choose this?
RevZilla Store
I own a naked bike, I have an oval shaped noggin', and I prefer Arai helmets.
Shana P on Jun 28, 2015
Best fit for my head shape, best head protection, great ventilation for hot summer days in TX, and looks sharp with my BMW RNineT.
R A on Feb 16, 2015
I own a naked bike, I have an oval shaped noggin', and I prefer Arai helmets.
Shana P on Jun 28, 2015
Arai fit/finish
Also like the classic graphic
steven s on Apr 14, 2015
Best fit for my head shape, best head protection, great ventilation for hot summer days in TX, and looks sharp with my BMW RNineT.
R A on Feb 16, 2015
I bought a 1290 Super Duke R, I have an old Yamaha SR500E and a Big Ruckus. So my Shoei X-12 is a little wrong for that, plus it is older, so I wanted a new helmet and I have enjoyed Arai in the past. The videos on your site were very helpful as well.
Douglas B on Jul 17, 2014
Designed for naked bikes with the 3/4 or full upright position. I ride a Diavel Carbon, so it seems a perfect fit!
Kevin N on Jun 17, 2014
returned due to fit
matthew l on May 8, 2014
I ride a triumph Speed Triple bike and determined this was the best Arai helmet for upright sportbike riding.
David W on Apr 17, 2014
Designed specifically for non-faired naked bikes.
John F on Oct 30, 2013
Thank heavens Arai offers XXXL again! Great venting. Pinlock standard - woo hoo! (Glenn)
Janet F on Oct 12, 2013
Arai fit/finish
Also like the classic graphic
steven s on Apr 14, 2015
I bought a 1290 Super Duke R, I have an old Yamaha SR500E and a Big Ruckus. So my Shoei X-12 is a little wrong for that, plus it is older, so I wanted a new helmet and I have enjoyed Arai in the past. The videos on your site were very helpful as well.
Douglas B on Jul 17, 2014
Hey All, I am right in the middle of a Medium and a Large at 23in head measurement. Whould you recommend I go the larger or smaller route? Thanks...
John R on Apr 21, 2014
BEST ANSWER: Revzillas size guarantee (read details) allows you to make sure you get the right fitment. BUT if you don't want to try one and then the other thru Zilla I'd suggest going somewhere local that has them for you try on, if possible. You may find neither fit you quite right and may need to order the smaller shell w the larger helmet size's cheek pad set, which may become costly. However, It's crucial to keep trying on a helmet and ensure fitment is comfortable. Keep in mind a very slight break in will occur and will very nominally loosen up as the foam forms to your head.
I ride a harley davidson dyna street bob and wondering what is the best type of helmet for riding that type of bike. the helmet I am using now pushes my head all over the place and on long rides iI end up with a sore neck and headache?
A shopper on Aug 15, 2014
BEST ANSWER: I own this helmet and have used it on three bikes: a CBR (sport bike that I can full tuck in), a Z1000 (naked bike with LOTS of direct wind) and a Goldwing F6B w a tall windshield. I wouldn't say there's excessive turbulence with the Z or the CBR but on the Goldwing, were there was very little direct wind and a "pocket" of turbulence around my head I did feel some movement I hadn't been used to. That being said, when I did put roughly 600 miles on the Goldwing within the 3 days I rode I would NEVER have complained about any soreness from the movement. It's a fairly light helmet but the BIGGEST advantage of this helmet over ANY helmet is the direct ventilation it provides. The biggest disadvantage is how noisy it is. Lots of wind rushing around the shield pods on the side and the vents themself. Hope this helps. But it just MAY complicate it more for you hahaha either way. Be assured that arai is a world class helmet w great quality.
i am in the final stage of buying my first bike it is a ZX10R is this the right helmet to buy for the type of riding on a supersport bike ??
Ajay Q on Oct 5, 2014
BEST ANSWER: I bought the helmet for it's great ventilation and naked bike aerodynamics in mind. I would recommend this as it has proven itself quite versatile from sport bikes to adventure bikes.
What if helmet doesn't fit?
A shopper on Jul 6, 2016
BEST ANSWER: Return it. But you can't just use it on a ride. You can only return it if you noticed it didn't fit right away. I recommend walking in to a store and trying helmets in the store and then buy online.
Long time Arai owner here; Corsair RX, Quantum 2 and XD4. I love them all. I now need a proper lid to compliment my Ducati Streetfighter 848. My intended use will be mostly street, but this helmet will also see two or three track days every season, so it needs to be capable of both.

The Defiant will be more than adequate for the street, no doubt. I'm curious about how it performs on the track, under high speed, etc.? For reference, the helmet in consideration is the RX-Q. For those of you that have taken the Defiant to the track, can you please chime in?
Thomas Ryan D on Jan 20, 2015
BEST ANSWER: this is my wife's helmet and she is just a passenger on the street. This is her 3rd arai and she likes it best of all. very light and great field of vision. it also flows air better than all the previous.
I have seen your videos on both the Defiant vs RX-Q. I ride a F800R. Im leaning more towards the Defiant becuase of looks but stacked up against the RX-Q , aside from style, any diferences to point out that can help me clairfy my purchase? My commute is 20 miles but through NYC
A shopper on Apr 24, 2013
BEST ANSWER: I've done quite a bit of research on both products. It seems the Defiant is far superior in terms of design. It's not just "style." It's the function of that style: the adjustable chin curtain to keep excess wind out (might be especially useful on colder days with your naked); the "diffuser"/spoiler @ the base of the helmet for increased stability and noise/turbulence reduction; HEAVY ventilation (possibly the best Arai has to offer...yes, including the Corsair V) due to the monstrous chin ventilation system (three stage: closed, partial open, full open); and from what I can tell, it looks like the vent controls would be easier to control with gloves on.

Bottom line: I have a 2010 Z1000 (nearly 20,000 miles) and a 2007 CBR 600RR with 56,000 miles on it. ALL these miles have been put on with a Shark RSR2 (thick visor, decent ventilation, awesome looks w/the Duhamel white graphic I got, PERFECT fit and comfort, easy visor swap, etc. etc.) I love the Shark and will be having a real hard time finding its replacement. I'm tedious in my research and after fitting many models (haven't fit on a Defiant) and reading about ALL top-line models it's come down to these (for me): Schuberth SR1 and Arai Defiant. The fit for the Defiant is hopefully identical to the RX-Q (which fit me better than a CorsairV) which is the shell it's based off of. Haven't fit on an SR1 but from what I can read, it's "race" fit is superb. Good luck with your decision. Just remember, when dealing with the top-line model of almost anything, you're not going to make a bad choice, it's just that one will be wiser for you than the others. Just figure out which one.