In this article I’m going to give you a list of the best cross country mountain bike helmets.
XC racers use helmets categorized as road bike helmets. These helmets aren’t necessarily less safe. In fact, a great many have better bicycle helmet ratings. But they are less bulky and cover a smaller part of your head. They are also lighter and better ventilated in general, and some helmets have been wind-tunnel tested and offer better aerodynamics, which is of less importance with cross country riding.
What I’ve done is taken a look at what road bike helmets are currently available, what crash technology they offer, and cross-referenced them with bicycle helmet ratings like the one from Virginia Tech.
I’ve also included a number of the best-in-class open face or half shell mountain bike helmets. Basically the list you see here covers the entire range from road, gravel, XC, to trail and enduro, and depending on your personal preference you can go for a half shell or road bike version.
I was hoping to find some golden nuggets that would offer a high level of safety for a decent enough price. Unfortunately this was not the case, meaning that some of the most expensive helmets had the highest ratings.
That means for us if you value your safety when XC riding, when it comes to your helmet you have to dig fairly deep into your pocket. That being said, your head is more important than what’s in your wallet.
So let’s see what I’ve got in store for you in my overview of the best cross country mountain bike helmets.
Giro Aether Spherical
The Giro Aether Spherical is arguably a better value-for-money proposition than the far more expensive Aries Spherical.
That’s because it boasts the exact same crash technology in a slightly different package. MIPS Spherical crash technology to reduce rotational impact forces, a multi-density EPS liner, and a reinforced polycarbonate shell. All are the same.
The Roc Loc 5 Air fit system is also featured, ensuring a great fit of the helmet with multiple ways to adjust the padding, vertical height and circumference. To keep you cool, air is ingeniously guided along your head.
There are many colors to choose from to fit the rest of your outfit or your bike. All in all a no-brainer if you value safety and are willing to spend the money on a premium helmet such as this one.
- One of the best value-for-money helmets in the premium segment.
- Still pretty expensive
Giro Aries Spherical
The Giro Aries Spherical is one of the safest if not the safest helmet within its category. It also has the highest suggested retail price at 300 USD. On its product page Giro boasts the helmet having the lowest Virginia Tech helmet rating (lower is better), and you have to if you charge this price.
So what exactly do you get for the money? This is one of a couple of helmets offering the MIPS Spherical technology, which reduces rotational damage with a ball-in-socket helmet setup. Furthermore the polycarbonate shell is reinforced with twin bridges on each side, alongside a roll-cage-like reinforced band. It all makes for an incredibly strong helmet that doesn’t weigh more than your average similar helmet.
It has silicon beads so sweat doesn’t drip into your eyes, or runs down your glasses, which is a feature far more useful than you might think.
The helmet is tightened on your head with the Roc Loc 5 Air fit system, something featured in all of their premium models. And something that does a great job of keeping the lightweight lid in place.
- Virginia Tech's best-rated helmet in terms of safety
- The most expensive helmet within its category
Giro Merit Spherical
The Giro Merit Spherical offers superb crash protection in a fantastic open face mountain bike helmet.
There are multiple crash technologies ensuring this helmet sits at the top of the range in terms of protecting. As do many other helmets it offers MIPS technology. The Merit uses MIPS Air which is the lightest variant.
Furthermore it offers Spherical technology, commonly referred to as a ball-and-socket setup where the inside of the helmet can move independent from its outer shell. A dual-density EPS liner is the last piece of tech to ensure maximum crash protection.
The entire package is still very light at 360 grams. Other great features are the bolt-on adjustable visor and the multi-point Roc Loc adjustment system.
The only downside I can think of is that you have to pay a lot of money for all that tech.
- One of the best open face mountain bike helmets, period.
- Very expensive
Troy Lee Designs A2
The Troy Lee Designs A2 is one of the most affordable, high quality, open-faced mountain bike helmets worth your money.
It offers superb comfort and fit, with an anti-bacterial X-Static Pure Silver padding. The padding sits within a dual-density EPS liner. The polycarbonate shell wraps around the edges to further protect the rather delicate EPS.
The decade-old design has been updated to feature the MIPS technology. Safety is further enhanced with the bolt-on breakaway visor, and 3-point fit system.
Part of the popularity of the A2 can be attributed to the comfort it provides. Both with the excellent fit and its ability to keep your head cool when you try and get the most out of your ride. 2 vents on the side extend far into the front. Together with elongated vents on top they suck in cool air, which can exit through a number of vents located at the back.
It’s a great looking helmet, available in many colors, with a perfect track record in crash protection, for a price below many of the top-of-the-line offerings from its competitors. An unbeatable proposition when it comes to mountain bike helmets.
- Best-in-class safety for a reasonable price when compared to the competition
- None
Lazer G1 MIPS
The Lazer G1 MIPS is marketed as one of the lightest helmets in its category. And to be fair it is.
Yet I want to put the 235 grams of this helmet in perspective, because the average road bike helmet weighs 280 grams. That’s 45 grams heavier and something you will not notice while riding.
On the other hand, things like ventilation and fit are far more important things with respect to comfort than a couple of grams less. And luckily this helmet performs exceptionally well in that area. You get 2 different sets of padding to fully customize the fit.
Unlike your classic dial at the base of your skull you actually modify the fit with a wheel on top of the helmet. This non-indexed dial draws the helmet tight around your head around the entirety of its circumference.
Although it does a fantastic job of creating a superb fit, the two strings underneath the helmet look rather delicate. And I’m familiar with fit systems breaking with helmets being stuffed into bags. So that’s something you might want to keep in mind if you’re not the type of person who’s really careful with her/his material.
In terms of safety it offers MIPS technology and sits just behind Giro’s Aries Spherical, so its most important feature is taken care of. And a helmet cover is included to marginally increase aerodynamic properties or protect you from the rain.
- One of the both lightest and safest helmets.
- Delicate fit system. You pay a hefty price to safe a few grams.
Lazer Sphere MIPS
The Lazer Sphere MIPS is an excellent choice if you want a helmet with a proven track record in safety without paying an absurd price.
When looking at the catalog of helmet manufacturers you can see an exponential increase in price to obtain the latest technology or the lightest variants. The Lazer Sphere MIPS is an excellent example of this, where a decent price get’s you all the latest bells and whistles in a slightly heavier package than Lazer’s top dog.
MIPS technology, the ARS fit system with the non-indexed dial on top of the helmet, and a weight of 280 grams, which is the exact average for road bike helmets all make for a great package.
- Excellent value for money.
- Delicate fit system
Bell Z20 MIPS
The Bell Z20 MIPS is a helmet that offers excellent crash protection with a great fit.
At 310 grams it’s not exactly a lightweight. On the other hand, they’ve included the latest MIPS Evolve crash technology with multi-density EPS liner.
The Float Fit Race fit system allows for multiple ways to get to the ultimate fit for your head, cleverly integrating it with the MIPS technology. Both the vertical height, circumference, and even padding width is adjustable.
Furthermore the EPS liner has a multi-density structure, which allows for progressively stronger impact absorption.
A great helmet, with a great overall value.
- Great overall package, comfortable, and one of the best in terms of crash protection.
- Heaviest of all premium models listed
Fox Racing Speedframe Pro
The Fox Racing Speedframe is the same helmet as the Pro version in everything but a small number of features.
The Speedframe Pro is one of the best helmets in terms of safety, and the standard Speedframe inherits many of its safety features except for the multi-density EPS liner.
The helmet is known for having an excellent fit, and you can fit a pair of goggles underneath the 3-point adjustable visor, as well as stash your glasses.
A good fit without pressure points, and a huge number strategically placed vents funneling air into and over your scalp keeps the heat buildup at bay. The air flow is especially noticeable when you pick up speed.
To keep the price down when compared to the Pro version, there’s a cheaper liner and the Fidlock snap buckle is missing from the straps, in an otherwise similar 360 degrees fit system.
It’s a great-looking mountain bike helmet, available in many colors and 3 sizes to choose from.
- One of the safest mountain bike helmets, in lots of different color variations.
- None
POC Octal MIPS
I will not hide the fact that I’m a fan of the Swedish brand, and with the POC Octal MIPS they’ve created another fantastic-looking product to their already impressive lineup.
Always striving to cram their products with the best technology the Octal MIPS features the Integra version of this crash technology, which means the slip plane is customized to the specifics of this helmet. The helmet has a unibody build for enhanced structural integrity in case of a crash.
It’s touted as being extremely lightweight, with a stripped down EPS liner and fit system, but it isn’t really. 270 grams sits just below the average for a premium bike helmet such as this one, and if you really want the lightest helmet you have to look somewhere else.
Personally, I feel again that this helmet is the best-looking of the whole bunch, but am acutely aware of the subjectivity of that statement. And I have read a number of comments from people being less favorable about its above-average width. Nonetheless is the craftsmanship of this helmet undeniable, and it has a safety rating to match.
- Distinctive design, excellent fit.
- None
POC Tectal Race SPIN
The POC Tectal Race SPIN is a fantastic-looking half shell mountain bike helmet featuring the SPIN crash technology.
SPIN is POC’s proprietary crash technology and is an abbreviation of “Shearing Pad INside”. Its goal is the same as MIPS, with rotational forces being dissipated by using silicone bladders in the liner.
The SPIN technology in combination with the unibody EPS structure, and aramid puncture-resistant reinforcement makes for an excellent impact-resistant helmet.
I believe that because of its proprietary nature POC decided to ditch SPIN in favor of MIPS in their recent lineup, for what is probably a marketing and sales reason. Because SPIN proved to be an excellent approach to increase a rider’s safety with respect to the helmet.
It is what it is, and it does mean that excellent can probably be had for less than its initial suggested retail price of 230 euros.
- Just as good as the MIPS version and probably cheaper
- If you're serious about getting a MIPS helmet
Specifications cross country mountain bike helmets
Name | Price | Technology | Shell | Liner | Visor | Fit | weight (gr) | eyewear port | rating | Buy at Amazon |
|---|---|---|---|---|---|---|---|---|---|---|
Giro Aether Spherical | 225 USD | MIPS Air/Spherical/Aura II | polycarbonate | Progressive Layering 3-layer EPS | none | Roc Loc 5 Air | 280 | yes | 12.51 | |
Giro Aries Spherical | 300 USD | MIPS Air/Spherical/Aura II | polycarbonate | Progressive Layering 3-layer EPS | none | Roc Loc 5 Air | 275 | yes | 8.4 | |
Giro Merit Spherical | 220 USD | MIPS Air/Spherical/Hardbody | polycarbonate | dual density EPS | bolt-on adjustable | Roc Loc 5 Air | 360 | yes | 9.90 | |
Troy Lee Designs A2 | 170 USD | MIPS | polycarbonate | dual density EPS | bolt-on breakaway | 3-point dial fit | 350 | yes | 9.99 | |
Lazer G1 MIPS | 250 USD | MIPS | polycarbonate | EPS | none | ARS | 235 | 9.23 | ||
Lazer Sphere MIPS | 160 USD | MIPS | polycarbonate | EPS | none | ARS | 280 | 10.23 | ||
Bell Z20 MIPS | 200 USD | MIPS Evolve | polycarbonate | Progressive Layering 3-layer EPS | none | Float Fit Race | 310 | 11.23 | ||
Fox Racing Speedframe Pro | 190 USD | MIPS | polycarbonate | dual density EPS | 3-position adjustable | 360° Fit System w. Fidlock buckle | 380 | yes | 10.84 | |
POC Octal MIPS | 200 EUR | MIPS Integra/Unibody | polycarbonate | EPS | none | lightweight system | 270 | yes | 10.59 | |
POC Tectal Race SPIN | 230 EUR | SPIN/Aramid bridge/Unibody | polycarbonate | EPS | adjustable | 368 | 11.67 |
Johan van Seijen
FoundeR Restoration.bike
Johan van Seijen is the founder of restoration.bike. His passion for cycling in general, and restoring older bikes turned into a website to share his knowledge with a broader audience. Starting out on his father’s road bike and riding classics as the Amstel Gold Race and Liege Bastogne Liege he has shifted his attention to trail, XC, and gravel riding since. No matter how much he loves writing about everything related to cycling, nothing beats actually using his ever-expanding bicycle collection.
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