Arai Quantum-X Helmet
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  • Arai Quantum-X Helmet - Pearl Black
  • Arai Quantum-X Helmet - Black Frost
  • Arai Quantum-X Helmet - Black Frost
  • Arai Quantum-X Helmet - Aluminum Silver
  • Arai Quantum-X Helmet - Aluminum Silver
  • Arai Quantum-X Helmet - Diamond Black
  • Arai Quantum-X Helmet - Diamond White
  • Arai Quantum-X Helmet - Diamond White
  • Arai Quantum-X Helmet - White
  • Arai Quantum-X Helmet - White

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Pearl Black
White
Aluminum Silver
Black Frost
Diamond Black
Diamond White

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Size Chart
MSRP
$679.95 - $699.95
Savings (10%):
$67.99
Price
$611.96

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Video Review

Arai Quantum-X Helmet Videos

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Shape: Round Oval

What's this?

Arai Quantum X Helmet

The name Arai has been synonymous with quality and protective technologies since the beginning of their days and the Quantum X continues to push the bounds, proving why Arai stands at the top. The Quantum series has been the go to helmet for riders with a more round headshape and this stays true with the Quantum X, thanks to its balanced length and slight additional width. With the simple installation of a Corsair X head liner, the Quantum X can even be converted to fit those with an intermediate oval headshape.

The Arai Quantum X Motorcycle Helmet features a chin curtain that helps to block air intrusion from the turbulent air underneath the helmet, as well as increases negative pressure to enhance the exhaust ventilation performance. The interior lining includes Arai's signature 5mm peel away ear pocket padding and ear pocket recess to accommodate communicator speakers.

VAS Shield System:

Normally the shield mounting position must remain relatively high, because a lower shield pivot will not allow the shield to open or close. The VAS (Variable Axis System) has a variable axis (moving pivot point). This allows shield opening and closing even with the 24mm lower shield mount position, compared to the RX-Q.

VAS Shield Latch System:

VAS shield latch system captures and holds the shield closed more securely to help prevent unexpected opening. In addition to a de-mist position, the larger latch design allows for an intuitive and seamless operation of the shield.

PB-SCLC Shell:

The new Peripherally Belted - Super Complex Laminate Construction shell design combines multiple materials and techniques created internally by Arai that deliver both performance and affordability.

Eco Pure Liner:

The fully removable interior liner system is made from Eco Pure material, which helps maintain neutral acidity levels close to human skin and antibacterial consumption, as well as a softer liner material and adjustable temple padding to allow for a customized fit.

VAS V MV Shield:

The VAS MAX Vision shield is standard to provide better visibility in all seasons and for all types of riding and comes standard with a clear anti-fog Pinlock insert.

Additional Features:

  • VAS (Variable Axis System) shield and side pods are exclusive to the Arai Quantum X Helmet
  • Dual function lever releases both the side pod and the face shield for quick and simple face shield removal
  • VAS shield latch system captures and holds the face shield closed and provides a de-mist position to slightly crack the shield open
  • VAS MAX Vision face shield provides excellent visibility in all seasons thanks to the included Pinlock insert
  • Neckroll is removable and has additional exhaust channels to remove interior heat
  • Cheek pads have the Emergency Release Tab feature
  • QVF & QVR upper ventilation ducts look familiar but offer more adjustment and better flow through performance
  • PB -SCLC Shell has superb tensile strength due to a variety of carefully-positioned materials and light weight resin
  • Includes clear Pinlock insert
  • Snell 2015 and DOT approved
4.8 / 5
Bang For The Buck
4.4 / 5
Protection & Durability
4.8 / 5
Features
4.8 / 5
Comfort
4.9 / 5
Style
4.8 / 5
Air Flow
4.5 / 5
Fit
Small
 
Large
Shape
Narrow
 
Round
Weight
Light
 
Heavy
Vision
Narrow
 
Wide
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
Pearl Black / XS 1165079 15681/A32011 Only 2 Left: Ships within 24 hours
Pearl Black / SM 1165080 15681/A32012 Out of Stock
Pearl Black / MD 1165081 15681/A32013 In Stock: Ships within 24 hours
Pearl Black / LG 1165082 15681/A32014 In Stock: Ships within 24 hours
Pearl Black / XL 1165083 15681/A32015 In Stock: Ships within 24 hours
Pearl Black / 2XL 1165084 15681/A32016 In Stock: Ships within 24 hours
White / XS 1165073 15681/A32001 Out of Stock
White / SM 1165074 15681/A32002 Out of Stock
White / MD 1165075 15681/A32003 In Stock: Ships within 24 hours
White / LG 1165076 15681/A32004 In Stock: Ships within 24 hours
White / XL 1165077 15681/A32005 In Stock: Ships within 24 hours
White / 2XL 1165078 15681/A32006 In Stock: Ships within 24 hours
Aluminum Silver / XS 1165085 15682/A32021 Out of Stock
Aluminum Silver / SM 1165086 15682/A32022 Out of Stock
Aluminum Silver / MD 1165087 15682/A32023 In Stock: Ships within 24 hours
Aluminum Silver / LG 1165088 15682/A32024 In Stock: Ships within 24 hours
Aluminum Silver / XL 1165089 15682/A32025 In Stock: Ships within 24 hours
Aluminum Silver / 2XL 1165090 15682/A32026 Out of Stock
Black Frost / XS 1165091 15684/A32041 Out of Stock
Black Frost / SM 1165092 15684/A32042 In Stock: Ships within 24 hours
Black Frost / MD 1165093 15684/A32043 In Stock: Ships within 24 hours
Black Frost / LG 1165094 15684/A32044 In Stock: Ships within 24 hours
Black Frost / XL 1165095 15684/A32045 In Stock: Ships within 24 hours
Black Frost / 2XL 1165096 15684/A32046 Only 1 Left: Ships within 24 hours
Diamond Black / XS 1165103 15682/A32071 Out of Stock
Diamond Black / SM 1165104 15682/A32072 In Stock: Ships within 24 hours
Diamond Black / MD 1165105 15682/A32073 In Stock: Ships within 24 hours
Diamond Black / LG 1165106 15682/A32074 In Stock: Ships within 24 hours
Diamond Black / XL 1165107 15682/A32075 In Stock: Ships within 24 hours
Diamond Black / 2XL 1165108 15682/A32076 Only 3 Left: Ships within 24 hours
Diamond White / XS 1165097 15682/A32061 In Stock: Ships within 24 hours
Diamond White / SM 1165098 15682/A32062 Out of Stock
Diamond White / MD 1165099 15682/A32063 Only 3 Left: Ships within 24 hours
Diamond White / LG 1165100 15682/A32064 Only 3 Left: Ships within 24 hours
Diamond White / XL 1165101 15682/A32065 In Stock: Ships within 24 hours
Diamond White / 2XL 1165102 15682/A32066 In Stock: Ships within 24 hours

Shipping

Orders $39.99 and over qualify for our fast free shipping offer. Click Here for FREE Shipping Terms and Conditions.

Please see our International Orders page for orders shipping outside the US.

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.

Write a Product Review for a chance to win our monthly $100 giveaways.
4.8 / 5.0
8 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
6
2
0
0
0
Bang For The Buck
4.4 / 5
Protection & Durability
4.8 / 5
Features
4.8 / 5
Comfort
4.9 / 5
Style
4.8 / 5
Air Flow
4.5 / 5
Fit
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True
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Bang For The Buck
3 / 5
Protection & Durability
5 / 5
Features
5 / 5
Comfort
5 / 5
Style
5 / 5
Fit
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5 / 5
Best Street Helmet EVER!!!
I have owned Arai helmets for over 30 years. That said, whenever its time to buy a new helmet I do the full spectrum of shopping but keep coming back to Arai. I am glad they chose to make a top-of-the-line street helmet as opposed to a pure race helmet. It predecessor the RX-Q was the first helmet that was really neutral in that you could turn your head at speed and not have the wind catch the helmet and try and snap your neck. The Quantum X has fixed most the issues I had with the RX-Q (face shield swap and noise) and returned the round helmet size that had been lacking since the Quantum S was dropped several years ago. For me, having a round helmet really does limit me to what helmets fit. Now if they could only bring the price down, but you can't have everything. Bottom line, great helmet, excellent fit, top quality and would buy another one without reservation.
February 3, 2017
Bang For The Buck
5 / 5
Protection & Durability
5 / 5
Features
4 / 5
Comfort
5 / 5
Style
5 / 5
Fit
Small
True
Large
Weight
Light
Avg
Heavy
Vision
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Air Flow
4 / 5
Seems Worth the Expense
I've tried helmets from Shoei and Biltwell, and I must say the Arai takes the prize on being my favorite.

I ordered the Quantum-X in Pearl Black and first noticed that the fit was very comfortable all around. The quality is noticeably above and beyond the other two manufacturers. The look of the Pearl Black is pretty sweet, too.

The face shield comes with a Pinlock insert lens which was convenient. Removing and replacing the face shield was really easy as well.
December 17, 2016
Bang For The Buck
5 / 5
Protection & Durability
5 / 5
Features
5 / 5
Comfort
5 / 5
Style
5 / 5
Fit
Small
True
Large
Shape
Narrow
 
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Weight
Light
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Air Flow
5 / 5
Perfect Helmet for Round Head
If you have a round head, this is the perfect helmet. There are few choices that will fit a round head and this one is one of the best helmets you can get. They are hand made in Japan by craftsmen who really want to protect your head. The build quality is excellent. This is a very comfortable, very protective helmet. Properly fitted, it is a squeeze to get your head in but then it opens up and cradles your head. This results in less air noise around your neck because of the tighter opening.
April 27, 2017
Purchased
4 months ago
Bang For The Buck
4 / 5
Protection & Durability
5 / 5
Features
5 / 5
Comfort
5 / 5
Style
4 / 5
Fit
Small
True
Large
Shape
Narrow
 
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Weight
Light
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5 / 5
Great Comfortable Helmet
I switched over from a tired Shoei RF-1100. The fit and finish of Arai is far beyond any offering I've seen. I love how comfortable this helmet is. I also love the lack of buffeting, and how balanced it feels on my head. My only gripe is the wind noise. It is the same if not worse than my RF-1100. I would recommend this helmet to anyone with a rounder head.
April 7, 2017
Purchased
6 months ago
Bang For The Buck
4 / 5
Protection & Durability
3 / 5
Features
4 / 5
Comfort
5 / 5
Style
5 / 5
Fit
Small
True
Large
Shape
Narrow
 
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Weight
Light
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3 / 5
Comfortable Helmet!
Pros:
Very well balanced and comfortable helmet.
Seems to be quieter than others.
Arai is a name you can trust your safety with.
Well made.
Quality materials.
Improved airflow from previous versions (I owned previous version).
Cons:
High Price
Matte paint already has chips after only 3,000 miles
March 12, 2017
Bang For The Buck
5 / 5
Protection & Durability
5 / 5
Features
5 / 5
Comfort
5 / 5
Style
5 / 5
Fit
Small
True
Large
Shape
Narrow
 
Round
Weight
Light
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Air Flow
5 / 5
amazing airflow, very confortable, all washable
Loving this helmet.
The airflow is amazing. I drive in LA and here the sun in a monster.
Is truly confortable, easy to disassemble to clean.
June 18, 2017
Purchased
2 months ago
Bang For The Buck
4 / 5
Protection & Durability
5 / 5
Features
5 / 5
Comfort
5 / 5
Style
5 / 5
Fit
Small
True
Large
Shape
Narrow
 
Round
Weight
Light
Avg
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Vision
Narrow
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Air Flow
4 / 5
You can't go wrong with Arai
I decided to upgrade from a Vector 2. I chose the Quantum X because I really couldn't justify spending the big bucks on a Corsair X. Still, this is the most I've ever spent on a helmet but those of you who've already been converted, know that you're getting the best in terms of comfort, materials, interior adjustability, build quality, fit and finish. In my case, the Quantum X fit better than the Signet X. The biggest improvement is the new shield removal system. It's so much easier than the old system that I will forgo the wonky Pro Shade system and keep a clear shield in my topcase for when I need it. I wear eyeglasses and the "round oval" provides more space on the temples and reduces the pressure points I felt with the Vector 2. Arai gets added points for including a Pinlock-ready shield and anti-fog insert in the box. Arai Americas also has great customer service if you ever have a problem or just want to ask them a question. If I had to take away points, it would be the new shield latch, which is difficult to operate right-handed. With that being my only complaint, I say well-done Arai!
May 4, 2017
Purchased
3 months ago
Bang For The Buck
5 / 5
Protection & Durability
5 / 5
Features
5 / 5
Comfort
4 / 5
Style
4 / 5
Fit
Small
True
Large
Shape
Narrow
 
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Weight
Light
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Air Flow
5 / 5
Clamps on my head like a giant octopus!
Replacing my very tired Shoei RF1100, this helmet just fits better on my German head. It is hard to get on, but once there it clamps in place and there is no shifting no matter how I turn my head even at speed. The pinlock visor that came with it is pretty impressive as well. In my old bucket I think my full beard interfered with flow-through. If I yawned, or coughed it would fog up. Not in this helmet. Noise is a bit less than the Shoei was. There is a bit of buffeting at speeds greater than about 70 mph, but I only ride with a small sport shield, so that's to be expected, and quite tolerable. I've had issues with other "new" helmets from other vendors having consumed much of their recommended 7 year shelf life before I got them. Not this one! Date of manufacture is 12/2016 which means it is covered for the entire 5 year warranty. All in all I am extremely happy with this helmet, and it still has that "New Helmet Smell!"
July 8, 2017
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