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Bottom line: do you want a light helmet made by a clothing company in China? Or a high quality, handmade helmet made by a Japanese company who specializes in helmet design for generations? Arai XD-4 all day!

Your speakers will fit under the cheek pad cover in the Arai. You will have plenty of room for your speakers in there. You can also route the wires in between the neck roll and shell so that they are not exposed on the bottom of the helmet. ECE test helmets in one of five known impact points. Unlike ECE, Snell uses a random impact test, double vs. single impact, and a penetration test (You can make a helmet much lighter if you do not expect much out of it). In Europe the Arai is ECE rated while still maintaining its ability to pass Snell. ECE is a lowest common denominator standard that allows all European helmet mfg. to sell with in the European Union. The British lost their BSI and the Germans lost their TUV standards when the EU was created. Snell is a non-profit organization that has been researching a developing standards to improve helmets for over 50 years. Arai has been hand making helmets in Japan for 70 years and they have 50 years of race experience to back up their technological achievements. Klim subs out their helmet manufacturing to a Chinese helmet company.

Assuming they both fit well, ARAI all the way. It’s a trusted and legendary helmet brand, with decades of R&D. While KLIM is a clothing brand, that happens to make a helmet.

I really love that you conclude on going with what fits better because I think way too many people overlook such an important part of buying a helmet. People don't realize how many different head shapes there. While working at a dealership, I used to find that people would be in a helmet too large for their heads because it was more comfortable, but their measurements and head shapes proved otherwise. Fitment is key. Great comparison video!

Nice review. I went back and forth with these two helmets and ended up with my second XD4. Actually bought the Klim and wanted to love it but it just didn't fit me. My face shield didn't close on one side all the way and the comfort liner attachment tabs broke. Luckily Klim had a 30 day test ride promo going on so I was able t return it. Arai quality is way higher and it fits better. On your comment on the comm unit speakers I had the same issue but put them under the cheek pad cover and they are perfect with plenty of room and the sound is not effected. This is how they designed it I'm told.

I've been intrigued by the Krios but concerned about its lack of shell sizes. I've always worn a Shoei small and like that they offer 5 shell sizes. Your comment on fit saved me from ordering online as I have a 55cm noggin. I like to see the development in ds helmets though

Thanks for the video. I had an original XD, loved it, replaced it after five years with an XD4 and don't love it. For some reason, it's much windier - inside - and I have air blowing on my eyes. Not a big deal for a short ride but after a day, it's not great. I'm going to check out the Klim. Oh, totally unrelated to helmets: did you shoot this video with a Panasonic GH5? It's autofocus is not very good; I notice that your face regularly goes out of focus when the camera switches to focus on the background.

Arai has d two further vents located at the metallic grid in the chin, that can be opened with slider inside. In Europe I got the pin lock together with the helmet.

Nice comparison video! Something nobody ever mentions about the Klim is you can purchase a transitions shield for it, which in a helmet that doesn't have a drop down sun visor is a huge feature. Perhaps you should have saved a few dollars by purchasing an Arai and used the extra money to buy a comb. ;)

Thanks a million man. We use intercoms and that's great to know. I think I'm gonna have to take the gamble on a Krios, especially because of the lighter weight. Great video and thanks for the reply.

Great I’m looking at both

This guy really likes the klim, if you research what that arai can do, you will see why the arai is way better. Airflow out the back is x4 and there is three intakes on the chin and four on the front. Also the safety standards arai test to themselves are beyond any "standard testing"

Fantastic video, exactly the kinda info I wanted without a sales pitch. Bummer is no one stocks Klim around my area. I wonder if the fit and finish is nice like the Arai's.

Great video! Just a note, you've got it backwards on ECE vs Snell. Snell is the highest possible rating; generally only Arai and some higher end Shoei helmets offer it.

Great comparison .

Much appreciated and great review. I'm not english spoken, so sorry to ask again. I did understand about the KLIM sizes... but did you test the M or S Size of Arai. I am also 57cm and would prefer the smallest possible Arai.

Gratulation to this presentation

Does the Klim share same with the medium and small VS the Arai? If so, the Arai in medium would look bigger than the Klim in medium? I'm a skinny guy so I want a medium helmet that doesn't make my head look huge.

I really like KLIM gear, but this helmet has not been my favorite. I think it comes with the pinlock because it really lacks ventilation. Mine fogs up much more than any helmets I have had in the past when the pinlock is out. I also wish the visor would stay open while riding. I cant get it to lock into any position over about 10mph. It just falls closed. Finally, the helmet fits great in the showroom but I developed some definite hot spots on my forehead after a couple of days using the helmet. My wishlist for KRIOS 2.0: -Better interior padding -More secure visor stop points so that you can ride with the visor cracked open. I love that my arai has a stopper that you can adjust on the visor -Better ventilation (I really cant tell when my vents are open or closed. They dont make much of a difference at all. With a few tweaks, this will be close to the perfect helmet.

Adventure Rig, thank you for this useful review. I am 57 cm fit so please clarify if you were buying the Kilim Krios again would you simply opt for the small rather than the medium? I really would appreciate your input as I reckon we have the same head size/shape. I wear a 57 cm medium Arai XD4 and that is a snug but comfortable fit by the way. Which helmet is quieter by the way?

A DOT _only_ certified helmet is illegal to use in my country (inside EU) because it's a too poor standard. Simply don't buy/sell a helmet that isn't really safe for motorcycle use... Always go to a shop to fit it perfectly. Online shopping can be done after you have determined your correct size. ;)

How is the wind drag on the visor at highway speeds?

I will disagree on the gap when the visor is closed on the Klim. My helmet has a very noticeable gap. My biggest nitpick with the helmet.

I'm sorry, but this comparison is littered with inaccuracies. Snell is a much stricter certification than ECE. DOT certification is absolutely meaningless. Also, ECE is not a step up from DOT, ECE is a required certification for the European market, DOT is for the US market. Snell is in addition to DOT or ECE for racing applications. More room for speakers in a helmet that's too big for you means absolutely nothing. You'd need to compare helmets that both have a good fit. Comparing weight on two helmets where you've added weight through modifications on one is meaningless too. The least you could've done is remove the speakers, mic, and mount before you weigh the Arai.

Its rarely available in india. Hope arai luanch this product in india. I love this helmet.

ECE　is a higher standard then SNELL?? what?

ece is eu standards. DOT is usa. snell on the other hand is a non profit org that does the certification. if klim has not done it, it means that they were not confident about the krios passing it. snell is also most updated one with a new release from the body in 2015. Arai and shoie will always make better helmets than anyone else whos not in the "helmet" industry. klim is a general purpise snow mobile brand which has made its road into motorcycles recently.

Aftet watch this review, Arai all the way.

"46.6 ounces which is roughly 2.9 pounds" - So how many normal units is that?

My Xd-4 is air tight - something must be wrong with yours, sorry.

Klim fits and feels like a cheap bucket imho. Arai is at another level, I don't get the hype from KLIM, their gear is the shit and what I ride on, but leave the helmets to the pros.

Klim better protection?? My brain hurts after listening to this video

can you use SI Units please (kg)

Lesson. When helmet shopping, go to a dealer, not mail order.

$500-$600?!! What you want, my kidney too while you're at it?!!

...thinking one of them is less noisy, warmer/cooler than the other is not knowing. You should have done it with a db-measuring instrument and a thermometer rather than stating a personal opinion... Unfortunately this is no help :-((

Why am I watching this? I will never in my life have a helmet in this price range.

Man sorry you lost all credibility when you said that ece and snell are debatable- snell is what’s used in motogp, and the article you linked by bikebandit is about the only source that waffles on the topic- a simple google search will show you this and anyone that’s been around bikes knows that only the best and most expensive helmets get a snell rating while dot and ece are minimum test requirements to be sold in the us and Europe respectively. Also did you read that article you linked from bike bandit? It knocks Snell as a certification because it’s voluntary?! Talk about an unreliable source. The reason it’s voluntary is because it’s expensive to get a snell rating and is beyond what you need to sell a helmet in Europe and America. It’s literally a certification on top of a certification. There’s a great article by RevZilla that gives more depth and context of each certification and clearly states that Snell is the gold standard. I appreciate the effort but if you’re going to do this, don’t spread misinformation please!

Ounces, pounds? Nevermind the rest of the world...

Forget about fit and personal opinions. Just factual got a lot wrong in this video. Pretty misleading.

DON'T BUY KLIM, helmet leaks and warranty department says "Oh Well" They SUCK

Klim needs to go bankrupt for gouging the customers

Save your money and buy a Scorpion AT950!

Why the f would u wear ear plugs any way

Snell is crap. ECE way better.