Helmet review: Arai Tour-X 4 tried and tested

Arai Tour-X 4 review
Arai Tour-X 4 review

The Arai Tour-X 4 is the latest in a long line of adventure helmets that reaches back to the original. It could well be considered the benchmark for dual sport lids. The basic design had been around for 20 years or so, but it’s only in the last two that I’ve had the chance to become properly acquainted with this latest version, the Tour-X 4 – and what a piece of kit it has turned out to be.

MCN’s guide to adventure bike helmets

Tested by Justin Hayzelden for two years, 5,500 miles
Quality 5/5, Value 5/5


Tested by Justin Hayzelden for two years, 5,500 miles
Quality 5/5, Value 5/5


  • Versatility
  • Quality
  • Ventilation


  • Visor change mechanism could be easier

Just opening the box is an experience in itself. Cleverly packaged without the need for tape or staples, it’s a masterclass in simple origami and opens to reveal the helmet cocooned in a neatly tied, fleecy storage bag, along with stickers, instructions (including a small bottle of silicone lubricant for the visor mechanism) and the Pinlock anti-fog insert.

Slipping it out of the bag and seeing the graphics in the flesh for the first time actually drew oohs and aahs, and then there’s the smell when you first put it on – new Arais have a unique aroma that immerses the wearer in a sensation of quality and craftsmanship.

Arai Tour-X 4 right side view


The Tour-X 4’s shell is based on Arai’s distinctive rounded R75 shape, a design that it shares with all the Japanese manufacturer’s top helmets, including the latest RX7-V race lid. It has been specifically developed to ‘glance off’ during an impact, thus reducing energy transfer and the chance of greater injury.

The construction is ‘Complex Fibre Laminate’, which consists of multiple hand-laid sheets of fibre bonded together with a special resin. This gives the shell both the structure and flexibility to absorb an impact across its entire surface. All external elements, such as the peak and air vents, are designed to simply break off to prevent them from catching on anything.

On the inside, there’s an EPS layer, which provides protection at the point of impact by deforming to cushion your head. Should the worst happen, the cheek pads have a quick release feature to assist emergency services with helmet removal. The Tour-X 4 has ECE 22-05 approval, in addition to Arai’s own stringent in-house testing, and meets the ACU Gold standard – meaning you could use it on the track too.

Arai Tour-X 4 emergency tab release


It gives me great piece of mind to know how much work goes into development and production on the safety side, after all that’s a helmet’s primary purpose, but in typical Arai fashion, the finished article is a true joy to behold. Every fixture and fitting has been added with the same inscrutable level of detail, not to mention the eye-catching Aldo Drudi-designed sparkly graphics, which set the ‘Depart Gun Metallic’ Tour-X 4 off a treat.

Arai Tour-X 4 left rear 3/4 view


The interior features a fully removable and washable moisture-wicking Dry-Cool liner, which is ultra plush and incredibly comfortable to wear. It works well too, drawing away sweat and remaining dry against the skin. I usually wear a size 58/M size hand found the fit spot on straight out of the box, however it is fully customisable by using different sized padding elements (available separately). There are also 5mm ‘peel away’ sections at both forehead and cheek pads/ear cups to tailor the Tour-X 4 to individual head shapes.

Arai Tour-X 4 interior


I’ve yet to find a helmet that is as pleasant to wear as an Arai, and with that cavernous opening, the Tour-X 4 may well be the best in the range. The weight distribution is so good, that it barely feels like there’s anything on your head, even after a full day on the trails. And that’s from a helmet weighing 1670g (on our scales), hardly the lightest in its class. The double D-ring strap ensures an infinitely secure fit and the extendable chin spoiler does a great job of keeping the wind out when you don’t want it. There’s also very little drag from the aerodynamically designed peak.

The Tour-X 4 isn’t the quietest of helmets, especially with the peak in place, but if you wear earplugs when riding (as I do) wind noise shouldn’t be a problem.

Arai Tour-X 4 front aperture


The visor is prepared for a Pinlock anti-fog shield (which comes in the box and is easy enough to fit) and is fixed together with the peak via four plastic screws. This makes removal a slightly more drawn-out affair than with the quick release mechanism featured on Arai’s racier lids – and certainly something that can’t be done yourself whilst wearing it. That said, it only takes me about two minutes to switch visors using a 50p piece as a screwdriver, so not really a big deal. Just be sure not to overtighten as it would be easy to destroy the screws.

Unlike much of the competition, the Tour-X 4 doesn’t have a drop-down internal sun shield, so if you want a tinted view it means carrying a spare visor or slipping on some sunglasses. I ride in specs anyway and can confirm that there are no issues with fit or comfort at all, even after a full day in the saddle. Personally, I’m not a fan of drop-down devices, as I feel it’s something else to break and they take up space that could be better used for protection.

The aperture seal has proved to be watertight, even in heavy rain, and the visor profile causes water droplets to disperse to the sides without the need to turn my head. It’s one of the most effective helmets I’ve worn in that respect.

I tend to use goggles when riding off-road and like the fact that the strap fits with the visor installed, regardless of whether it’s open or closed. However, if the going gets messy it can also be removed entirely to prevent damage from mud and grit, turning the Tour-X into a traditional off-road style lid.

Arai Tour-X 4 visor fixings


The Tour-X 4 scores massively for ventilation, with seven intake ports and five exhaust. I used it on a ride around the Peak District on the hottest day of the year and can say hand on heart that a lack of airflow was never an issue. All of the vents are easy to operate, even in chunky gloves, and are suitably robust in operation. Each one can be operated independently, save for those at the lower rear and the back end of the lining which are permanently open. The internal sliders on the intakes on either side of the chin bar are particularly neat.

I’ve worn the Tour-X 4 in the depths of winter too and with everything closed it insulated my head just fine. Although the Pinlock insert kept the visor fog-free, I can’t say the same about my glasses, but fortunately, the visor has a two-stage catch which allows it to be cracked open just enough to allow a flow of air to solve the issue.

Arai Tour-X 4 chin bar vents


This brings me to versatility – with the peak removed, the Tour-X 4 makes a unique, and in my opinion, pretty awesome, streetfighter style lid. Although it’s designed that way and comes with additional side pods for running peakless, I can’t say that I’ve ever actually seen one being used in this fashion on the street. Which is a shame, as personally I love the look and have been using it more and more in this configuration on all kinds of bikes, from nakeds and scramblers to retro and cruiser machines.

Arai Tour-X 4 without peak


I’ve intentionally left talking about price until the end, purely down to the versatility aspect. At a penny under £600 (RRP) the cost is not to be sniffed at, but for a handmade helmet that oozes quality both inside and out, not to mention the pleasure of simply wearing it, it’s right on the money. Add to that the fact that it’s essentially three helmets in one and the value should become clear – for trail riding, touring or even tearing up the track, the Arai Tour-X 4 could well be the only helmet you’ll ever need.

Arai Tour-X 4 Depart Gun Metallic on BMW G310GS

Billed by Arai as one of the ‘most versatile helmets ever’ the Tour X4 has certainly been my go-to helmet for a significant chunk of riding I’ve completed over the last five years. While Arai claim it works as a grand tourer, adventure helmet and for use on naked bikes with the peak removed the vast majority of my riding has been using it for off-road and adventure.

From events in Italy, to riding the Trans Euro Trail in Northern Spain and most recently a trip to Iceland it’s been my helmet of choice for when I need something I can completely trust and rely on. After all your helmet is the most important piece of safety equipment we all wear.

This is actually my second Arai adventure helmet, I ran the previous X3 model for the five years prior to getting the X4. One of the key factors that keeps me coming back for more is the fit. I wear an XS and unlike other helmets Arai have different outer shell sizes meaning that I’m not wearing a helmet with a large outer shell and lots of padding to make it fit correctly. This in turn makes it feel and look better.

Arai Tour-X 4 river crossing on Africa Twin

Despite the smaller outer shell the X4 is a heavy helmet weighing in at 1.73kg even in size XS. It actually takes me by surprise whenever I pick it up, especially compared to an all carbon Klim Krios I’ve also been using recently. But while the X4 feels heavy when you pick it up, it is incredibly well balanced so the moment you put it on your head the weight becomes largely irrelevant. I’ve done some long days wearing the X4 (we did a 12.5 hours day off-road in Iceland recently) and the weight and balance of the helmet was never a factor – it was the rest of my body that was aching!

I’ve used the helmet with both clear and a light smoke visor and both give excellent vision and minimal glare. The light smoke visor gives the same quality and contrast as a decent pair of sun glasses. Compared to a motocross helmet the peak is short but it’s enough to act as a sunshade when the sun is low in the sky or give protection from rocks roosted up by the rider in front by simply dropping your head.

Arai Tour-X 4 on motorcycle seat

Despite the peak the smooth lines of the outer shell make it more than acceptable for sustained motorway speeds. I always expect the peak to make it feel worse than a regular road helmet but in reality, when riding a big adventure bike, it’s the flawed aerodynamics/screen of the bike that are the issue rather than the helmet. My only real gripe is that changing visors is a slow and laborious task which requires removing four easily lose able screws and the peak.

More adventure bike helmets to consider

Price: £309.99

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