Trying to decide on the best new mountain biking helmet? After researching over 80 models, we purchased the 23 best available for side-by-side testing and comparison. With all the options out there, finding the perfect helmet can be challenging, and this purchase is one of the most important things you can wear while riding. To help, we spent months riding in these helmets while analyzing every aspect of their performance and design. After thoroughly testing each model, we rated them on six predetermined metrics: protection, comfort, ventilation, features, weight, and durability. We hope this detailed comparative review helps you find the helmet that best suits your needs and budget.Related: Best Full Face Bike Helmets
Best Mountain Bike Helmets
|Price||Check Price at REI|
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|$119.96 at Backcountry|
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$151.99 at Backcountry
|Pros||Lots of safety certifications, enhanced protective features, well ventilated, deep fit with lots of coverage||MIPS Spherical, adjustable visor, comfortable roc loc harness||Lightweight, good ventilation, comfortable, adjustable visor, MIPS, good coverage||Well ventilated, lightweight, great coverage, SPIN system, comfortable||Thick EPS shell, goggle and glasses storage, high-coverage|
|Cons||Expensive, moderate weight, visor design doesn't block low sun angles that well, helmet shell may conflict with some sunglass arms||Heavy, subpar ventilation||More expensive||Expensive, visor is less user friendly than the competition||Bulky, above-average weight, sweat management|
|Bottom Line||POC continues to push the envelope of protection and safety with this new fully-featured, high coverage half-shell||Packed with innovative features, this was the best full-coverage, open-face helmet we tested||The lightweight helmet is well ventilated, comfortable, and boasts excellent coverage with the MIPS SL rotational protection system||This model offers great protection, comfort, and ventilation in a lightweight package, making it one of our favorites||A heavy-duty trail helmet with easy goggle and glasses storage but a bulkier fit|
|Rating Categories||POC Kortal Race MIPS||Giro Tyrant Spherical||Specialized Ambush||POC Tectal Race SPIN||Leatt MTB 4.0 AllMtn|
|Specs||POC Kortal Race MIPS||Giro Tyrant Spherical||Specialized Ambush||POC Tectal Race SPIN||Leatt MTB 4.0 AllMtn|
|Rotational Impact Protection System?||MIPS Integra||MIPS||MIPS SL||SPIN||360 Turbine|
|Weight (Ounces, Grams)||14.14 oz, 401g size M/L||1 lb 9 oz, 718g size L||12.35 oz, 350g, size Large||12.87 oz, 365g, size M/L||18.77oz, 532g|
|Number of vents||17||14||20||15||13|
|Goggle or Sunglasses Integration?||Yes||Yes||Yes, sunglass & goggle integration||Yes, Goggle Clip||Yes|
|Sizes||XS/SM, M/L L/XL||S, M, L||S, M, L||XS/S, M/L, XL/XXL||S, M, L|
|Certifications||CPSC Bicycle for ages 5+, EN1078, Dutch NTA 8776 e-bike, AS/NZS 2063||CPSC Bicycle for ages 5+, CE EN1078||CPSC, CE EN1078, AS/NZS2063||CPSC, CE EN1078||CPSC, CE EN1078, AS/NZ 2063|
|Virginia Tech Helmet Safety Rating (if applicable)||5-star||5-star||5-star|
Best Overall Mountain Bike Helmet
Giro Manifest Spherical
In a hard-fought battle, the Giro Manifest edged out some incredible competition to earn our highest recommendation. This unique mountain bike helmet has all of the bells and whistles we would expect from a top-of-the-line, half-shell model in a well-executed, sleek design. Rather than the typical plastic MIPS liner, the Manifest packs Giro's new MIPS Spherical rotational impact system which comprises two separate EPS foam shells connected by elastomers. The shells are made from two different foam densities and are designed to rotate against each other like a ball and socket joint in the event of an angular impact. The interior foam shell drops down low on the back and sides of the head to provide extra coverage for the temples and occipital lobe and fits a wide array of head shapes and sizes comfortably. Large front-to-back vents and interior channels in the EPS provide some of the best ventilation we've ever experienced in a helmet, and the interior padding does a great job of absorbing sweat on those long, hot rides.
We were extremely hard-pressed to find anything to complain about with this model. Performance-wise, we had no issues in testing. The only negatives we can point out are the high price tag and the average weight. With the dual-shell design and all the features we could ask for, this helmet packs a few grams of extra heft over the lightest models we tested. On the trail, however, the difference isn't noticeable with the Maifest's secure fit, and we're not concerned about a little bit of added weight for a do-it-all trail helmet. The price tag might be off-putting at first glance, but it's comparable to the other top-of-the-line helmets in the test. We think the Manifest's performance more than justifies the price tag.
Read review: Giro Manifest Spherical
Best Bang for Your Buck
Giro Chronicle MIPS
Giro's Chronicle is designed to be a mid-range offering, but it ended up outperforming many of its much more expensive counterparts in our test. The competition was tight, but at less than half the price of some of the heavy hitters, the Chronicle is an excellent value with no glaring weak points. Our favorite aspect of this model was its versatile fit. Giro has decades of expertise and offers a calculated fit for the majority of head shapes. On top of that, the Chronicle sits low on the head for a secure-feeling, high-coverage fit, and the Roc Loc harness system pulls even tension around the whole head. With MIPS integrated into its interior, the Chronicle also provides modern protection and peace of mind out on the trail.
At its low price point, the Chronicle doesn't pack as many features as many other mountain bike helmets we tested. While the features that it does have are well-executed, you don't get the same luxuries, like anti-microbial padding or molded reinforcement in the EPS shell, like Giro's top-shelf models. Despite the limited number and size of the vents, the Chronicle ventilates well, but it doesn't stack up with the best performers in our test.
Read review: Giro Chronicle MIPS
Great Price and Quality
Bell 4Forty MIPS
The Bell 4Forty MIPS is another affordable mountain bike helmet that outperformed many helmets that cost significantly more. It, like many higher-priced helmets, has a well-made and protective feel that offers ample coverage and a MIPS liner. It's also quite comfortable with a crowd-pleasing fit and an extensive adjustment range in its straps and Float fit system. It has a large adjustable visor that does a great job blocking the sun and is compatible with goggles. Testers also loved the unique sweat guide pad that managed to direct sweat out and away from the face and reduce dripping on your lenses.
While we liked almost everything about the 4Forty, we did have a couple of minor complaints. Despite having 15 vents, it provided adequate ventilation and was noticeably stuffier than the best ventilating helmets we have tested. It's also moderately heavy compared to the lighter weight competition, although we feel the weight is respectable considering the asking price. If you're on a budget, but you don't want to skimp on performance or features, we think the 4Forty MIPS is a great option to consider.
Read review: Bell 4Forty MIPS
Best Trail Riding Helmet
Fox Racing Speedframe Pro
Despite its mid-range price tag, the Fox Racing Speedframe Pro was one of our top-rated and most highly regarded helmets. This newer model nearly bested several helmets that cost significantly more. It packs many of the features we would expect from a top-of-the-line trail helmet, including a MIPS rotational impact system, dual-density EPS foam, a goggle-accommodating adjustable visor, and a highly adjustable harness system. Out on the trail, it was one of the most comfortable, well-ventilated models we tested. It feels light on your head and offers a secure, confidence-inspiring fit. Additionally, it received the "Best Available" 5-Star rating in Virginia Tech's independent helmet safety testing.
The Speedframe Pro is slightly heavier than the rest of the top-shelf models. It's not ridiculously heavy by any means, but it tacks on an extra fifty grams compared to the lightest models. Additionally, the Speedframe doesn't quite provide the same level of coverage as the other top contenders. Regardless, it's still well worth a look for anyone in the market for a choice new lid at an approachable price.
Read review: Fox Racing Speedframe Pro
Best for Protection
POC Kortal Race MIPS
The Kortal Race MIPS is a new model from POC that stands out for its impressive protective qualities. The Kortal builds off the success of the ever-popular Tectal, with a deep fit and even more head coverage. It also features a new rotational impact protection system called MIPS Integra, which is strikingly similar to POC's SPIN system, although now it features a low-friction slip plane integrated into the foam of the helmet. This MIPS system is low profile and has the added benefit of not blocking any of the vents or air channels in this very well-ventilated helmet. In fact, this is one of the airiest helmets we've ever tested. The Kortal also features a new three-position adjustable visor that is designed to easily break away in the event of a direct impact. Additional features like Aramid bridges for structural integrity, a Recco reflector, and an NFC medical id chip further enhance its protective/safety qualities. The Kortal also carries all of the usual safety certifications in addition to the new Dutch e-bike standard.
Our gripes with the Kortal are few, but we did find a few nits to pick. We found the fit of the shell to be slightly narrower than most other helmets we tested, which may be an issue for those with particularly round head shapes. We think the new adjustable breakaway visor is great, although its position higher on the helmet limits its effectiveness at blocking low sun angles. The Kortal was designed to integrate with POC's new Devour sunglasses, but we found that the shell by the temples could conflict with the arms of many other sunglasses. It's also pretty pricey. That said, if you're looking for the most protective half-shell helmet on the market, we think the Kortal is worth every penny.
Read review: POC Kortal Race MIPS
Best for Extra Coverage
Giro Tyrant Spherical
As part of a new wave of moto-inspired, open-face trail helmets, the Giro Tyrant provides significantly more head coverage than most of the standard mountain bike helmets we tested. Giro bills this beefy lid as a versatile option that can span the gap between gravity, trail, and dirt jump helmets. After weeks of rigorous testing, we support Giro's claim that it's an incredibly versatile helmet despite its heavy, protective construction. The first thing you'll notice when donning the Tyrant is that it shares a unique dual-shell construction with its half-shell counterpart, the Manifest. The inner shell is low-density EPP foam for minor impacts, and the outer shell is high-density EPS to absorb major collisions. Despite its double-shell composition, the helmet keeps a relatively low profile on your head, and the vents do a surprisingly good job of keeping things cool. Combine the innovative protection and coverage with Giro's Roc Loc harness system and refined shell shape, and you have a helmet that stays comfortable all day.
While we hugely appreciated the Tyrant's extra coverage and protection when things got rowdy, it does come with a weight penalty. This product is far heavier than your standard half-shell trail helmet. It doesn't make you feel like a bobblehead like some of the heavier full-face helmets out there, but you'll undoubtedly notice that it has more heft than your average lid. Given the Tyrant's intended purpose, we don't think the extra weight is a big problem. This model is perfect if you want to have fun on the trails and test your limits with the peace of mind provided by the protection from added coverage.
Read review: Giro Tyrant Spherical
Best for Ventilation
100% designed a remarkably calculated half-shell trail helmet with the Altec. For a brand that focuses mainly on full-face models, they nailed the Altec's ventilation and construction while managing to sneak in some clever features to make your life easier out on the trail. The first thing we noticed when donning this helmet for a ride was the breathability. Don't be fooled by its limited vents. They are large, strategically placed, and lead directly to an interior channel in the EPS foam shell that runs around the back of the head. It does a great job keeping your head cool and relatively sweat-free on hot days or long climbs. Beyond its airy feel, the Altec features a solid, durable construction that seems like it will last at least a few seasons if you can avoid head impacts. After two months of heavy testing, our test model looked as good as new. The finish on the polycarbonate outer shell doesn't scratch easily, and there's very little exposed EPS foam to chip away over time. Add in 100%'s Smartshock elastomer rotational impact protection, and the relatively low price compared to some of our other top models, and we think the Altec is a great value.
The two downsides we found associated with the Altec are the EPS shell fit and the average degree of head coverage. We noticed some minor pressure points at the back of the head every time we put the helmet on, but it never became a major discomfort out on the trail. It's not an uncomfortable feeling, but it lacks the glove-like fit suited for many head shapes. Moreover, it does provide a little bit of extra coverage compared to traditional cross country and road helmets; the Altec sits a bit higher on the head than some of the other top models in our test.
Read review: 100% Altec
Why You Should Trust Us
Our mountain bike helmet review team consists of Jeremy Benson and Zach Wick. Jeremy is our Senior Mountain Bike Review Editor and a gravel and mountain bike racer who has been riding for three decades and has seen the progression of helmet technology over that time. He's also taken his fair share of diggers, suffering from more than one concussion and cracking a few helmets over the years. He knows from first-hand experience the importance of a quality helmet for both protection and comfort. Benson is a self-proclaimed heat of the day rider who appreciates the benefits of a well-ventilated helmet. Benson is also the author of Mountain Bike Tahoe, a mountain biking guidebook for the Lake Tahoe area published by Mountaineers Books.
Zach Wick has been riding and racing mountain, road, and cyclocross bikes for the last 15 years and has gone through his fair share of single-impact mountain bike helmets in that time. He knows what comprises a good helmet and won't hit the trails in anything he doesn't have confidence in. Zach has also spent years working in product development in the bike industry including five years in a test lab learning what makes a good product. He applies this experience and knowledge to our testing design to ensure our process is as rigorous as possible.
These two keep a close eye on new product releases throughout the year to stay up to date on the latest trends. For this review, they spent days researching countless models and discussing options before selecting 23 of the best to test and compare side by side. They tested each model through hundreds of miles of everyday riding on a variety of trails and in a wide range of weather conditions. Our review team evaluated the fit and comfort, features, ventilation, and adjustability of each helmet. They also swapped helmets out regularly for head-to-head comparisons and learned that some minute differences only become apparent through back-to-back testing.
Related: How We Tested Mountain Bike Helmets
Analysis and Test Results
In recent years the fit, style, comfort, and protection of helmets have all improved dramatically, and strapping on a helmet for a mountain bike ride has become as natural as buckling your seatbelt when you get in a car. It's a good thing because they are the single most important piece of protective gear you can wear. No two helmets are made equal, and the helmets in our test vary in their design approach. This review covers extended-coverage half-shell helmets designed for cross country, trail, and enduro riding along with a couple "full cut", open-faced helmets that offer even more coverage than your standard trail helmet. Our testers rated each model on protection, comfort, weight, ventilation, features, and durability. The combined scores led us to our best overall and top pick award winners.
Related: Buying Advice for Mountain Bike Helmets
Related: Best Bike Helmets
The top-rated Giro Manifest Spherical, Specialized Ambush, and POC Kortal Race MIPS are three of the most expensive and also the highest performance models we tested. So you do get what you pay for, but sometimes you get quite a bit more. Of course, that isn't always the case. Some of the affordable models we looked at outperformed their more expensive counterparts. Riders looking for a good value from their helmet have plenty of options, including affordable models like the Giro Chronicle MIPS and the Bell 4Forty MIPS
Since a helmet would be useless if it couldn't keep your head safe, protection is our most heavily-weighted metric. We aren't crash test dummies, nor are we a certifying agency, so our protection rating is based on a helmet's construction, head coverage, and rotational impact protection system. All of the helmets tested meet or exceed the US's CPSC Bicycle standard.
Head coverage plays a significant role in how protective a helmet is, and the amount of coverage varies from model to model. All of the helmets in this test are extended coverage half-shell helmets, though some offer a bit more coverage than others. The Giro Tyrant is one such helmet with a deep, "full cut" fit that drops down to provide more coverage on the temporal and occipital lobes. Lately, more and more "full cut" open face helmets have been cropping up. We also tested the Fox Racing Dropframe, which offers similar coverage and styling. The Giro Manifest Spherical, Specialized Ambush, POC Kortal, Leatt MTB 4.0 AllMtn, and Giro Chronicle are the highest-coverage helmets we tested with a more traditional half-shell design.
The construction of the helmet also contributes to its protection. Each model has an in-mold construction with a durable polycarbonate shell wrapped around an EPS foam liner. A number of newer helmets offer dual-density foam design with a mix of EPS and EPP foam intended to better manage impact forces from both high and low-speed impacts. The Giro Tyrant and Manifest Spherical feature an innovative dual-shell design in which EPP and EPS shells rotate against each other in the event of an impact. Other helmets, like the POC Tectal, POC Kortal, and the Specialized Ambush, also use aramid molded into their EPS foam to add strength.
Rather than EPS foam, Smith uses a proprietary material known as Koroyd in their high-end helmets. Both the Session and the Forefront 2 employ this material in their construction. Koroyd looks like a honeycomb, or a bunch of straws packed very tightly together and is intended to crush or crumple in the event of an impact. Since this material is porous, Smith claims it provides excellent impact absorption with the added benefit of allowing air to pass through it. The Forefront 2 boasts nearly full Koroyd coverage inside the helmet, while the Session has two smaller strategically-placed panels on the sides of the helmet. Bontrager has created a similar cellular structure they call WaveCel used in the Blaze helmet. They claim this unique wave-shaped structure absorbs impact and also works as a slip-plane to reduce rotational impact forces.
Nearly every helmet in this review comes with a rotational impact protection system of some kind. Most use the industry-standard MIPS system, but a few companies have gone on to develop their own technologies. POC has developed SPIN, which is incorporated into the padding and is intended to absorb impact and reduce the forces of an oblique impact, while also reducing weight and not affecting the fit of the helmet. Leatt's Turbine 360 is meant to work similarly, with several Armourgel Turbines integrated into the construction of the helmet. 6D's ODS and 100%'s Smartshock are unique in their use of elastomer shock absorbers to reduce g-forces on impact. Bontrager's WaveCel is a new rendition and utilizes a porous structure that they claim can absorb impact and function like a slip-plane. MIPS created the MIPS SL system specifically for Specialized helmets, and it's built directly into the padding. POC now uses a new system called MIPS Integra in the Kortal.
The IXS Trigger AM and Fox Racing Dropframe are the only helmets we tested without a rotational impact protection system. IXS chose to stick to the traditional EPS construction with no added frills for the version of the Trigger AM that we tested but has since started offering a MIPS version. The Dropframe uses thick interior padding similar to traditional full-face helmet designs. While the science behind rotational impact protection isn't exactly settled, we think it's a logical system and are happy to have it when we're out riding.
MIPS, Spherical, Turbine, SPIN, ODS, Smartshock, LDL, WaveCel: Which safety standard is the best?
Rotational impact protection systems are now available in most helmets. MIPS (Multi-directional Impact Protection System) was the first on the scene and used to be the only game in town when it came to reducing rotational forces in a crash. Recently, several other technologies have entered the fray, Leatt developed Turbine, 100% designed Smartshock, Kali implemented LDL, POC created SPIN, Bontrager made WaveCel, and 6D designed ODS. Each of these systems aims to solve the same problem, but they approach it in a variety of different ways. Some systems, like Smartshock, LDL, SPIN, and 6D tout both direct and rotational impact protection, while traditional MIPS is designed strictly to help with rotational impacts.Which technology is the best? The jury is still out. We recommend doing some research and deciding for yourself. The cost of these systems has come down in recent years, and nowadays, they only add about 5-10% to the price of a helmet. Since the whole point of a helmet is to protect the brain through a reduction of impact forces, we recommend paying the premium price for a helmet with one of these systems.
Beyond safety, comfort is the next most important aspect of a helmet. A comfortable helmet feels natural and helps you stay focused on the trail. It's important to remember that comfort is subjective, and what works for you may vary based on the size and shape of your head. When in doubt, try on different models to find the size and fit that works best. Some brands' shell shapes tend to work better for specific head shapes while others are more versatile. Keep in mind that adjustable features like the retention system and chin straps play a role in how the helmet fits and our comfort rating.
All of the helmets tested use lightweight open-cell foam pads covered in moisture-wicking fabric to pad between the hard EPS foam and the rider's head. The thickness, quality, and placement of these pads play a significant role in a helmet's overall comfort. The most comfortable helmets have well-placed padding that covers the contact points between the polystyrene or MIPS liner and your head. Over-padded helmets can trap air and quickly overheat, so judicious pad placement is important.
The most comfortable helmets in our test were the Giro Manifest, Troy Lee A3, Fox Racing Speedframe Pro, Giro Chronicle, Specialized Ambush, Giro Tyrant, and Smith Forefront 2. All of these helmets seemed to fit every tester like a glove. The Troy Lee A2 MIPS, Giro Montaro, and the Bell 4Forty MIPS also scored well by providing ample coverage while still offering an impressively comfortable fit. All of these helmets have an agreeable shape and feature padding covered with a wicking material.
Each helmet in our review employs a harness retention system. Commonly referred to as a fit or size adjustment, these enable riders to make micro-adjustments to dial in the fit of their lid. Retention systems typically come in the form of a two-sided plastic cradle at the back of the helmet with a dial in the middle that pulls tension evenly from both sides. This adjustment tightens or loosens to hug the head snugly for a secure fit. The size and shape of these adjustment dials vary considerably, as does their ease of use. Our favorite systems were those like Giro's Roc Loc that pulled tension around the entire head with small indexed positions rather than just pinching at the back.
Another fit adjustment found on all the models in our test is the chin strap, including the strap splitter by the ears. Most chin straps offer a range of adjustability so that you can get the correct fit to secure the helmet on your head. More and more modern helmets use magnetic buckles that attach securely and can easily be opened and closed while wearing riding gloves. The strap splitter allows the user to adjust the position of the straps by the ears. Ideally, the straps shouldn't make contact with the ears. Our favorite strap systems are found on the POC Tectal Race SPIN, POC Kortal Race MIPS, Oakley DRT5, 100% Altec, and the Specialized Ambush, with a Y-shaped strap yoke that holds them in the perfect position. Some of the simpler splitters, like those on the Smith Convoy, struggle to keep the straps away from your ears and sitting flat on the side of your face, which can create a nuisance over time.
To rate each helmet's ventilation, we assess how well it works in real-world riding situations. We swapped helmets and rode with them back-to-back in the same conditions. Interestingly, our testers found that the number of vents doesn't directly correlate to how well a helmet's ventilation system works.
The size, shape, and placement of a helmet's vents are just as important as the quantity. The Giro Manifest was one of the best in the test, with long front-to-back vents and an excellent internal air channel design that keeps the air flowing through the helmet. Our other top-performing helmet for ventilation is the 100% Altec. Despite having only 15 vents, it keeps the air flowing and your head cool. A couple of the other best-ventilated helmets in our test are the Specialized Ambush and the POC Kortal Race MIPS.
Features of mountain bike helmets are intended to improve fit, comfort, and protection while making your life a little bit easier out on the trail. One feature that all of the helmets we tested share is the visor—the main feature that sets mountain bike helmets apart from their road counterparts. Every model we tested has one, but they are certainly not created equal.
A visor's primary function is to shield your eyes from the sun, but they also serve as a little protection from rain and can help to deflect less consequential trailside obstacles. Helmet visors vary in size and shape, as well as in attachment method and adjustability. Many visors are adjustable and can be articulated up and down to improve visibility or to accommodate goggles. Others are static and fixed in the lowered position. Our gear testers prefer adjustable visors for their versatility and so that they can better accommodate goggles.
Our favorite visors are found on the Smith Forefront 2, the Giro Chronicle, Giro Montaro, and Bell 4Forty MIPS. They're all large enough to block the sun effectively, and each rotates up far enough to be entirely out of view and to accommodate goggles on the front. The POC Tectal also has an adjustable visor but is less user-friendly. It requires you to loosen a small screw to adjust and secure it in place. The Troy Lee A3 improves upon previous models with a 3-position Magnajust visor that can be pushed up high enough to accommodate goggles when not in use.
Many manufacturers are developing unique features as well. The Specialized Ambush, for example, can be used with the ANGi sensor (available as an aftermarket purchase) that attaches to the back of the helmet and can be synced to your smartphone and the Specialized Ride App. The app can track your ride, provide people with ride start and stop notifications, and even notify your emergency contacts in the event of a crash. These interesting new features incorporate technology into your helmet, and are likely to be seen more often in the near future. Likewise, POC has included a Recco reflector as well as an NFC medical id chip in the Kortal Race MIPS which can be read by first responders if you are unresponsive.
Oakley has also gone out of its way to add features to the DRT5 to enhance eyewear integration. They use a Boa fit adjustment system that doesn't conflict with the arms of glasses, and they've incorporated a silicone sweat gutter that prevents drips on the lenses. On the back of the helmet, they've added an Eyewear Landing Zone in the form of two clips that hold the arms of your sunglasses relatively securely on the helmet. A quality visor flips up high for goggle compatibility, and with that Oakley has topped the charts with its features.
Our test helmets all fall into a fairly wide weight range from 12.35 to 25 ounces, or 350 to 718 grams. The Specialized Ambush was the lightest helmet in the review while the Giro Tyrant was the heaviest. Many of our top-performing helmets weigh within a few grams of each other. Differences in weight that small are hardly noticeable. For this reason, we put less emphasis on this metric than others.
In some cases, we found that the perceived weight of a helmet has as much to do with how well it fits as with the actual weight on the scale. The Troy Lee A3, for instance, was one helmet that felt considerably lighter than what the scale showed due to its excellent fit.
Our testers don't go out of their way to crash during testing. Therefore, the durability score is not correlated to crash resistance. It evaluates a helmet's ability to withstand daily use and common wear and tear. All of the helmets tested are designed to protect your head through partial destruction of the helmet during a crash. It is imperative that you replace your helmet after a significant impact. Beyond crash damage, most helmets should provide a responsible user with years of trouble-free use.
Helmets with full coverage outer shells that wrap entirely around the lower edge of the delicate EPS foam have better resistance to dings and dents from daily use and abuse. Most of the helmets in the test share this quality. We also observed how wear affected all the moving parts, fit adjustments, outer shells, and inner padding. The vast majority of the helmets that we tested are durably constructed and should span the test of time assuming that you can avoid hitting the deck.
Mountain biking has the potential to be a high-impact activity, and protecting your head while you rip over rugged trails is the most important thing you can do. Choosing a helmet that will protect you from the inevitable crash but that is also durable enough to last, light enough to not weigh you down, and breathable enough to make you feel like you could ride for hours can be an overwhelming task. Our testers put each of these models through their paces to provide you with the best information possible before you make your next helmet purchase, and we hoped that this in-depth review helped to point you in the right direction.
— Jeremy Benson, Zach Wick
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