Best Mountain Biking Helmets of 2026
The Top-Rated MTB Helmets for All Abilities and Budgets
May 30th, 2026, updated with 2 new helmets tested, and a new winner for style
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A mountain bike helmet is the piece of gear where cutting corners has the most direct consequences. MTB helmets are built differently from road helmets: more coverage around the back and sides of the head, visors to deflect branches and shield from sun, and impact protection systems designed for the kinds of crashes that happen at speed on technical terrain. Choosing the right one means understanding both what the safety ratings actually measure and how the helmet fits and breathes over a long day in the saddle.
We've spent three years testing MTB helmets across Colorado's trail networks, including technical descents in Crested Butte, flow trails at Winter Park's Trestle Bike Park, and enduro courses throughout the Front Range. We used the Virginia Tech Helmet Lab ratings as a baseline for safety and tested helmets across disciplines from cross-country trail riding to enduro to downhill, with testers of different head shapes and sizes putting the same helmets through the same conditions.
What separates a good MTB helmet from one that just checks the safety box comes down to how well the rotational impact protection system integrates without creating pressure points, how the ventilation actually performs on long climbs versus fast descents, whether the fit system holds the helmet securely without creating hot spots, and how the coverage and weight balance against each other for your specific riding style.
Top Pick: The POC Cularis earns our Best Overall award. It holds the highest Virginia Tech 5-star safety rating of any helmet we tested as of our last update, integrates MIPS Air Node in a way that is genuinely unnoticeable during riding, has 19 vents that kept our testers comfortable across varied temperatures and climb lengths, and after hundreds of miles across our test team it is the helmet we keep reaching for first.
Looking for sunglasses to work with your helmet? See our Best MTB Glasses guide
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Comparison Table
| MTB HELMET | TREELINE AWARD | VT SAFETY RATING | ROTATIONAL IMPACT PROTECTION | BEST USE | VISOR | VENTING | SIZING | ADJUSTABLE? | WEIGHT | PRICE |
|---|---|---|---|---|---|---|---|---|---|---|
| POC Cularis | Best Overall Read why |
5 stars | MIPS Air Node | Trail | Yes, adjustable | Excellent | S-L | Yes | 360 g (S) | $260 |
| Smith Forefront 3 | Best Looking Read why |
Not on list | MIPS Air Node | Trail / Enduro | Yes, adjustable | Ample | S-L | Yes | 410g (M) | $300 |
| POC Kortal Race MIPS | Best High Coverage Half-Shell MTB Helmet Read why |
Not listed | MIPS Integra | Trail / Enduro | Yes, adjustable | Good | XS/S - XL/XXL | Yes | 400 g (M/L) | $300 |
| Giro Manifest Spherical | Most Comfortable Read why |
5 stars | MIPS Spherical | Trail | Yes, adjustable | Excellent | S - L | Yes | 346 g (M) | $280 |
| Smith Convoy MIPS | Best Budget Read why |
Not on list | MIPS | Trail | Yes, fixed | Great | XS-XL | Yes | 290g (S) | $85 |
| Smith Hardline Composite | Best Full Face Read why |
Not on list | MIPS Evolve Core, Koroyd | Downhill | Yes, adjustable | Decent | S-L | Yes | 990g (M) | $450 |
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The Best MTB Helmets
Best Overall MTB helmet: POC Cularis
Price: $260
Virginia Tech Rating: 5 stars (highest rated MTB helmet as of July 2025)
Rotational Impact Protection: MIPS Air Node
Helmet Style: Trail
Visor: Yes, adjustable
Sizing: S-L
Weight: 360g (small, as tested)
Additional Features: breakaway visor, RECCO
What we liked: excellent balance of protection, comfort, features, plenty of ventilation, comfortable in varied conditions and temperatures
What we didn’t like: expensive
The best MTB helmets provide a combination of safety features and comfort, and POC has nailed that with the Cularis. This cross-country and trail helmet is ideal for most mountain bikers outside of the XC race track or downhill bike park. The combo of an incredibly comfortable design with ample safety features makes this helmet our top choice for everyday trail riders who love to pedal before they descend. After hundreds of miles spent in this helmet, we love the fit, comfort, and features this helmet has to offer.
POC Cularis
The Cularis is made with a lightweight PC shell and an expanded polystyrene (EPS) liner. Aramid bridges in the construction of the helmet also strengthen the helmet. For rotational impact protection, the helmet has Mips Air Node integrated into the foam padding. We think this version of Mips is much more comfortable and far less noticeable (in fact, it’s not really noticeable at all) than the traditional Mips cage-like integration that’s common in older models or less expensive helmets (like the Smith Convoy).
This shell has a fairly similar look to the POC Kortal Race Mips, our best high coverage pick and another very popular model from POC. But, the Cularis is lighter than the Kortal Race and more comfortable, too, especially for folks with smaller heads. In fact, the Cularis was a close second for the most comfortable helmet in our test, just behind the Giro Manifest Spherical. Throughout our testing, it was often a helmet we nearly forgot we were wearing.
The Cularis has 15 well sized vents that offer lots of airflow on hot days. And, the larger width of these vents made it easier to scratch a random itch on the trail—a minor detail that can turn into a real nuisance when you’re busy pedaling hard up a climb. The vent placement leaves room for you to store sunglasses on the helmet, and two small grippy pads on the inside of two of the vents help to keep your shades in place when stored there.
We also appreciate added features like the Fidlock magnetic buckle, which is easy to clip with gloves on. The breakaway visor is adjustable in three positions.
After testing over hundreds of miles of singletrack from the mountains of Colorado to the dry and dusty Utah desert, this helmet became a go-to for our testers and the combo of comfort, features, and high safety ratings has helped it earn its keep as our top pick for all-around trail riding.
Best Looking MTB Helmet: Smith Optics Forefront 3
Price: $300
Virginia Tech Rating: Not on list
Rotational Impact Protection: Mips Air Node
Additional Impact Protection: Koroyd
Visor: Yes, adjustable
Vents: 20 fixed vents
Sizing: S-L
Weight: 410g (for a size medium)
Additional Features: BOA fit system, AirEvac ventilation system integrates with Smith Optics eyewear
What we liked: Comfortable, low-profile design, stylish and unique look, two spots for sunglasses storage
What we didn’t like: Expensive, not the best ventilation
The Smith Optics Forefront 3 is our pick for the Best Looking Mountain Bike Helmet, and after dozens of days testing it on trails across Colorado’s high country and the southern Utah desert by multiple testers, we think it earns the title. It's a top-notch helmet with a noteworthy style and unbeatable comfort.
If you value a combination of high-end safety tech paired with a sleek, unique style, you should put the Forefront 3 on your shortlist. With two forms of impact protection (Mips Air Node for rotational forces and Koroyd for direct impacts), it's suitable for a wide variety of trail riding.
We have spent multiple seasons testing every iteration of the Forefront, and while we loved those too, this is a notable upgrade in both form and function. It’s more breathable and better ventilated than previous versions of the Forefront, but it doesn’t sacrifice any of the safety tech to achieve that. It’s also a lower profile and sleeker looking overall than older Forefront models.
Read more in our in-depth review of the Smith Forefront 3 mountain bike helmet.
Smith Optics Forefront 3
We spent dozens of days testing the Smith Optics Forefront 3 helmet on trails in Colorado and Utah. Our days testing in Colorado were primarily on high country trails around Summit County, and temperatures and conditions varied from warm and sunny late summer conditions to cool and drizzly fall biking weather. In Utah, we encountered warm and dry weather in the desert during the fall. We also spent multiple days testing this helmet on bike commutes to work on cold spring mornings and during warm afternoon rides.
The tradeoffs are price and ventilation. At $300, it's an investment. And while the venting is notably better than previous Forefronts, the Koroyd structure means it's still not the airiest helmet in its class — something to consider if you ride often in hot climates like Sedona or Moab.
If you spend your time trail riding and want a helmet that looks good and protects your very good-looking brain, too, we think the Forefront 3 is an excellent option to consider. Plus, it comes in a wide variety of colors, from subtle and earthy to bright and poppy, including one that literally has “flamingo” in the name. Look good, feel good, ride good—and protect that noggin while you’re at it.
Best High Coverage Half-Shell MTB Helmet: POC Kortal Race Mips
Price: $300
Virginia Tech Rating: Not on list
Rotational Impact Protection: MIPS Integra
Helmet Style: Trail/Enduro
Visor: Yes, adjustable
Sizing: XS/S-XL/XXL
Weight: 400g (M/L)
Additional Features: MIPS Integra, RECCO, NFC Medical ID Chip
What we liked: outstanding safety features, reinforced strength and durability, best coverage for a half-shell
What we didn’t like: deeper fit can get in the way of some sunglasses arms, on the heavy side
If top-shelf safety features are what you’re looking for in a bike helmet, then POC has you covered. The Kortal Race Mips is one of the newest in POC’s line of mountain bike helmets, and it has a tall stack of safety features, building on the popularity of their classic POC Tectal Race MIPS.
The Kortal Race is constructed with what POC calls a “unibody shell,” meaning the helmet is molded as one single unit for better strength. It also features aramid bridges, which reinforce the strength of the helmet and enhance overall durability.
The Kortal Race has the best coverage of any of the helmets we tested, with the shell coming down close to the ears and over the bottom of the back of the skull.
POC Kortal Race Mips
For rotational impact protection, POC uses Mips Integra in this helmet. Unlike traditional Mips, where a thin plastic lining sits inside the helmet shell to allow for a small amount of rotational movement, Mips Integra takes the same idea and integrates it into the padding in the helmet. This technology makes for a rotational impact protection system in the helmet that is equally effective but more comfortable and less noticeable than the original Mips design.
These features alone–the construction, coverage, and rotational impact protection system–make for a great mountain bike helmet. But POC went the extra mile. The Kortal Race Mips also includes features like a RECCO reflector for search and rescue, an NFC Medical ID that stores personal medical information in case of an emergency, and meets standards for the Dutch e-bike safety certification.
The helmet also has an adjustable visor that’s compatible with goggles and, notably, is designed to snap off in the event of a crash to help prevent additional injuries. On top of all this extra protection, the Kortal Race Mips has 17 vent channels to maximize airflow.
We’ve tested this helmet over multiple seasons, from the bike park to endurance races, and it’s remained a favorite. When testing the Kortal Race Mips helmet on sun-soaked desert trails, we found it very breezy and comfortable, despite its burly construction.
The Kortal Race fits true to size but has a deeper fit than any of the other helmets in our test. While this adds extra protection, we did find the helmet interfered with some sunglass arms. If you still want top-rated safety but prefer a lighter and lower profile helmet (especially for smaller heads), consider the POC Cularis instead.
But if you’re looking for a trail helmet that stands up to plenty of pedaling without forgoing high coverage and ample protection, we think the POC Kortal Race Mips is an excellent choice. Plus, we think it boasts some of the best style in our test, too.
Most Comfortable MTB Helmet: Giro Manifest Spherical
Price: $280
Virginia Tech Rating: 5 stars
Rotational Impact Protection: MIPS Spherical
Helmet Style: Trail
Visor: Yes, somewhat adjustable
Sizing: S-L
Weight: 346g (M)
Additional Features: Spherical Technology for impact protection, antimicrobial padding, Fidlock magnetic buckle
What we liked: extreme comfort, lightweight, perfectly snug, great ventilation, lots of safety features, no pinching, works with lots of different pairs of sunglasses
What we didn’t like: on the expensive side
Safety is a given for us when we review bike helmets. If it doesn’t protect you, why bother strapping the thing to your head? While most top-end, brand name helmets are meeting those safety standards, not all helmets are created equal. With the Manifest Spherical, Giro delivers safety in spades, but what they also nail is comfort—a factory we think is equally as important. After all, if the helmet isn’t comfortable, you’re less likely to even wear it in the first place.
Of all the helmets we tested for this review, none were as comfortable as the Manifest. It’s light, fits perfectly snug, and has great ventilation. Plus, it’s got a blend of unique and proven safety technologies that make this helmet one of the best choices out there for trail riding.
Giro Manifest Spherical
Like all of our winners in this review, the Manifest has Mips integrated into the shell, which helps to protect against injury from rotational impacts. The Manifest also has what Giro calls Spherical technology—something the brand developed alongside Bell.
Essentially, the helmet is constructed with two different liners which operate somewhat like a ball-and-socket joint, according to Giro’s website. It also allows them to add different layers of dual-density foam within the helmet to protect against different types of impact. Virginia Tech gave this helmet 5 stars for safety. So yes, the safety features in this helmet are great, and one of the top reasons to purchase it. Fortunately, we didn’t have to test that feature in the field.
What we did notice when we were in the saddle is the supreme comfort of this helmet. From the minute we first tested it, it felt incredibly light and perfectly snug. It worked seamlessly with multiple pairs of sunglasses and never pinched near the temples or anywhere else. This is a helmet that you truly forget you’re even wearing. And while the POC Cularis is a close second in comfort, nothing in our test compared to the barely-there lightweight comfort of the Giro Manifest, with its comfortably snug fit and complete lack of any pressure points.
The vents are generous for warm days with lots of pedaling, and the fidlock buckle is simple to use. We’ve tested this helmet over multiple seasons of riding, primarily in Colorado, and the comfort is, hands down, what impressed the most.
The Manifest Spherical is certainly not cheap, but we believe you get what you pay for. While it’s at the upper end for price, there are many other helmets that top out with a similar price tag. And for the combo of comfort and protection, we think that price tag is worth it.
Best Budget MTB Helmet: Smith Convoy Mips
Price: $85
Virginia Tech Rating: Not on list
Rotational Impact Protection: MIPS
Helmet Style: trail
Visor: Yes, fixed
Sizing: XS-XL
Weight: 290g (S)
Additional Features: collarbone protection zone
What we liked: good value, large size range, surprisingly comfortable for the budget helmet category
What we didn’t like: visor is not adjustable, vents are narrow making it hard to scratch your head when wearing
You don’t always have to splurge to get ample protection for your dome for trail rides. Smith has proved that with the Convoy Mips helmet. While it doesn’t boast the same bells and whistles as others in our review, it doesn’t skimp on safety features like Mips rotational impact protection, and it’s a mere fraction of the price. We tested this helmet on trail rides around Colorado and nearly forgot we were even wearing a budget-oriented helmet.
Smith Convoy Mips
The Convoy is made with an in-mold construction that helps to keep the helmet lightweight. Traditional Mips is integrated into the lining of the helmet to help with rotational impact protection.
For comfort, the Convoy has 20 different vent channels that help with sweat management and airflow. There is a dial system for fit. One other aspect we like about this helmet, aside from the overall value, is that it’s offered in a wider size range—including XS and XL sizes—compared to most of our other winners which only have three size offerings.
We rode in the Convoy on trails around Colorado, including cool days paired with rock gardens and techy terrain, and hot days with plenty of pedaling. While it does lack some of the bonus features, like a magnetic buckle or a BOA fit system like what more premium Smith helmets have, we found the Convoy to be very comfortable and felt plenty safe when wearing it.
We will note that the newer Mips Air Node system, which is used in the POC Cularis and new Smith Forefront 3 helmets, is more comfortable overall than traditional Mips. But, those helmets are around triple the price of the Convoy. So given that, we still think the Convoy offers excellent value for budget minded riders who don’t want to skimp on safety.
Best Full Face MTB Helmet: Smith Hardline MIPS Composite Helmet
Price: $450
Virginia Tech Rating: Not on list
Rotational Impact Protection: MIPS Evolve Core, Koroyd
Helmet Style: downhill
Visor: Yes, adjustable
Sizing: S-L
Weight: 990g (M)
What we liked: lots of safety features and thoughtful design for aggressive downhill riding
What we didn’t like: not as much airflow as lighter full face helmets, on the heavy side
If riding downhill fast is your primary goal on a mountain bike, you’ll want the appropriate protection to match that goal—and that means a full face helmet to protect your noggin. The Smith Hardline is a fully-featured full-face helmet built for aggressive downhill riding. There are lighter, more enduro-style full face helmets out there, but the Hardline brings the feature package that dedicated downhill and freeride mountain bikers look for.
The Hardline helmet uses a composite shell. It has Koroyd coverage throughout the main body of the helmet as well as Mips for rotational impact protection. At the bottom of the helmet, there is a zone with extra padding that’s intended to help prevent collar bone injuries that could occur by contact with the helmet in the event of a crash.
Smith Hardline Composite
We tested the Hardline on fast and sometimes rowdy downhill trails at ski resorts in Colorado and found it to be both comfortable and protective. There are 13 vents of varying sizes spread out across the main part of the helmet, with honeycomb structures for airflow in the chin area. The helmet also includes additional padding of different thickness so that you can tailor the fit to your head. With the padding and chin strap adjusted well, our tester had no issues with the helmet bouncing around, rattling, or moving at all, even in sections of rough, technical rock gardens.
This isn’t a helmet we’d recommend if you’re going to do much pedaling at all. All that protection for the downhill comes at a price in both weight and breathability. If you’re looking for a more pedal-friendly, enduro-style full face, consider the Smith Mainline instead. But for days when you’re shuttling or riding lift-accessed trails, the Hardline offers top-level protection to give you a little more confidence for fast descents.
Other MTB Helmets we tested
With so many mountain bike helmets on the market today, there are many good options to choose from. While these didn’t quite make the cut for our top awards, we still think they’re worth considering if you’re in the market for a quality half-shell helmet.
Sweet Protection Bushwhacker 2Vi
Price: $275
Virginia Tech Rating: 5 stars
Rotational Impact Protection: Mips Air Node
Helmet Style: Trail
Visor: Yes, adjustable
Sizing: S/M, M/L, L, XL
Weight: 430g (M/L)
Additional Features: Sweet Protection’s 2Vi tech for direct/blunt impacts, 360 dial fit system
We’ve spent the spring testing the Bushwhacker 2Vi trail helmet from Sweet Protection, and so far we’ve been impressed. It’s comfortable with good venting and has great coverage for a half shell helmet—up there with our other favorite high coverage options, including the POC Kortal Race Mips and the Smith Optics Forefront 3.
Sweet Protection Bushwhacker 2Vi
The author testing the Sweet Protection Bushwhacker Mips 2Vi on unusually dry early spring trails in Breckenridge, CO. Photo by Jon Stockwell.
Like other top-end helmets we love, the Bushwhacker features Mips Air Node for rotational impact protection—what we think is the most comfortable and subtle version of Mips yet.
In addition to that, the helmet construction also features Sweet Protection’s 2Vi tech for added impact protection. This technology uses different densities of foam in different places of the helmet, based on where impacts are most likely. This beefs up the blunt and direct impact protection while maximizing weight savings where possible.
The profile is wide and may look bobble-head-like on smaller heads, but overall we think this helmet is another excellent choice for all around trail riding, especially given its 5-star Virginia Tech rating.
Price: $190
Virginia Tech Rating: 5 stars
Rotational Impact Protection: MIPS
Helmet Style: trail/enduro
Visor: Yes, adjustable
Sizing: S-L
Weight: 380g (M)
Additional Features: Washable antimicrobial liner, goggle compatible
This helmet held our best overall award for many seasons and though we love the fit and safety features of the POC Cularis, we still think the Speedframe Pro is an excellent choice. It’s comfortable, protective, and reasonably priced, too.
We spent time in this helmet in conditions as varied as cool spring rides in the woods to hot desert trails in the summer. The Speedframe Pro fits true-to-size and accommodates most head shapes comfortably. A dial in the back helps to fine-tune the fit.
The Speedframe Pro boasts a 5-star rating from Virginia Tech’s helmet testing program. It is constructed with dual-density EPS foam and includes a Mips liner for rotational impact protection. Other features include washable, anti-microbial inner padding; 19 vents for airflow; a magnetic Fidlock SNAP buckle on the strap; and an adjustable visor compatible with goggles.
Fox Speedframe Pro
Price: $315
Virginia Tech Rating: 5 stars (top of the list)
Rotational Impact Protection: MIPS
Helmet Style: enduro
Visor: Yes, fixed
Sizing: S-L
Weight: 750g (M)
Additional Features: washable antimicrobial liner, goggle compatible
The Fox Dropframe Pro helmet finds itself in limbo somewhere between a half-shell and full-face helmet. The design has more coverage than a typical open-face helmet, with protection that fully covers the back of the skull and protects around the ears as well.
The Fox Dropframe Pro helmet sits at the very top of Virginia Tech’s list for bike helmets and includes Mips protection to boot.
However, the Dropframe doesn’t have an adjustable fit, so getting size dialed can be a little trickier. But, if you’re looking for as much protection as you can get outside of a full-face helmet, the Dropframe is up for your gnarly trail rides.
Fox Dropframe Pro
Price: $200
Virginia Tech Rating: Not on list
Rotational Impact Protection: MIPS
HelmetStyle: Trail / Enduro
Visor: Yes
Sizing: S - L
Weight: 369g
Additional Features: strategically placed Koroyd panels crush on impact, effectively absorbing energy, VaporFit™ adjustable fit system
The Smith Session MIPS with Koroyd is a midrange MTB helmet between the Smith Convoy and the Smith Forefront. It's neither the most budget nor the most expensive MTB helmet. It runs large and some riders found it less comfortable than other options out there. If you like the look and safety features of the Session MIPS, you may find the Smith Convoy MIPS or Smith Forefront to be more comfortable.
Smith Session MIPS
Price: $190
Virginia Tech Rating: 5 stars
Rotational Impact Protection: SPIN
Helmet Style: Trail / Enduro
Visor: Yes, adjustable
Sizing: XS/S - XL/XXL
Weight: 368g (M/L)
Additional Features: 360-degree fit, EPS liner
The POC Tectal Race MIPS helmet has been around for several years and has been all-around performer. However, we think with the release of the POC Cularis, we prefer that POC helmet to this older model. One thing to keep in mind is that this helmet runs large so consider sizing down.
POC Tectal Race Mips
Price: $175
Virginia Tech Rating: 5 stars
Rotational Impact Protection: WaveCel
HelmetStyle: Trail / Enduro
Visor: Yes, fixed
Sizing: S - L
Weight: 392g
Additional Features: BOA fit system, Fidlock strap buckle, goggle compatible
The Trek Rally WaveCel helmet uses WaveCel for added rotational and direct impact protection. While this adds protection, we didn’t find this helmet to be as comfortable or as breathable as others in our test.
Trek Rally WaveCel
Price: $400
Virginia Tech Rating: Not on list
Rotational Impact Protection: MIPS
Helmet Style: Full face
Visor: Removable breakaway visor
Sizing: S-L
Weight: 750g (M)
Additional Features: NFC Medical ID, RECCO, Race Lock adjustment system, removable padding
While the Smith Hardline wins our award for the best dedicated downhill bike helmet, some riders may want something a little lighter and more breathable. The POC Otocon Race Mips is a lightweight enduro-style full face helmet, great for trail riders who want the protection of a full face but enough breathability to at least pedal in it a little. This helmet is also a great option for folks with their sights set on enduro races. The only downside is that some folks have struggled with the more oval-like shape of this helmet. Our tester did not encounter this issue and found an excellent and very comfortable fit in her usual size.
POC Otocon Race MIPS
Aside from safety components, fit is crucial for a good mountain bike helmet. How a helmet fits your head changes from brand to brand, so what works for you may not be the best option for your friend. Photo by Tom Callaghan.
How to Choose a Mountain Bike Helmet
An easy to adjust helmet harness adjustment ensures a good fit, which improves the chances that the helmet can do its job. This POC Helmet, our upgrade winner, also comes with RECCO.
Start with your riding style. This is the most important filter. If you spend most of your time pedaling cross-country singletrack in warm weather, a lightweight half-shell with good ventilation is the right starting point. If you're an aggressive trail rider spending time on technical descents, look for more coverage and safety features over ventilation. If you ride the bike park regularly, a full-face helmet should be a priority. And if you ride a mix of everything, an all-around trail helmet with solid coverage and reasonable ventilation is probably the most practical single option.
Make sure it fits your head. Fit matters more than any other feature because a helmet that doesn't fit properly can't do its job. Measure your head before ordering online, and try on a few helmets if you can. Different manufacturers have different shapes, and the brand that fits your riding partner perfectly may not work for you at all. A good fit adjustment dial helps fine-tune the fit once you have the right size, and an easy-to-adjust harness system means you'll actually use it rather than just letting it sit loose.
Think about coverage versus ventilation. More coverage generally means less ventilation. A helmet designed for aggressive enduro riding will protect more of your head but will feel warmer on a long summer climb. A helmet optimized for XC riding will keep you cooler but leaves more exposed. Match this tradeoff to the riding you actually do, not the riding you aspire to do.
Check safety certifications. Any helmet you consider should have appropriate safety certifications from the Consumer Product Safety Commission at minimum. Virginia Tech's independent helmet testing ratings are also worth checking, as they provide useful comparative data across models on real-world impact performance.
Set a budget and know what you're paying for. You don't need to spend hundreds of dollars to get a helmet that will protect you. What higher prices typically buy you is better ventilation, lighter weight, nicer padding, and additional safety technologies like MIPS or Koroyd. If budget is the priority, look for helmets that meet safety certifications without the premium features, and you'll find solid protection at a reasonable price.
Consider accessory compatibility. If you plan to mount a light or action camera, check that the helmet has the right mounts before you buy. See our favorite helmet-mounted MTB light and our GoPro review for options worth pairing with your helmet.
Check the warranty, especially crash replacement. Helmets should be replaced after a significant impact even when there's no visible damage, since the foam can compress in ways that aren't obvious externally. A manufacturer that offers crash replacement at a reduced cost makes this less painful. Check what the warranty covers before you buy.
Mountain Bike Helmets vs. Road Cycling Helmets
Testing the Chiru MTB helmet on the trails of Colorado. Photo by Tom Callaghan.
When it comes to overall safety features, a good half-shell mountain bike helmet (as opposed to a full-face helmet) should have the same major safety features as a good cycling helmet. In this way, the basic construction of road and mountain bike helmets are not too different.
The main differences between these types of helmets are style and features, not directly related to the helmet’s safety rating. In comparison, a road bike helmet generally won’t have visors and will aim for a more aerodynamic shape.
Mountain bike helmets typically will have visors and will put less of an emphasis on aerodynamics. Instead, they will put more focus on trail riding features, like visor adjustability and a spot to hold your MTB sunglasses.
Related: Best Touring Bicycles (they make great commuter bikes, too!)
A traditional MIPS liner.
The new MIPS Integra liner.
Mountain Bike Helmet Safety Technology
A helmet harness system is designed for safety.
There are specific technologies used in bike helmets that add additional protection for your skull and brain. All good bike helmets are constructed with EPS foam (expanded polystyrene). This EPS liner is often reinforced and then covered with a high-quality plastic outer shell.
Then, there are rotational impact protection systems that add important protection against brain damage in the event of a crash. The most used technology in the industry is Mips—an inner layer to the helmet that offers a low friction movement of 10-15 millimeters inside the helmet to reduce the effects of rotational impact on the brain. This safety feature has been scientifically proven to reduce the impact on the brain in crashes, and we believe it is crucial for a modern helmet to have.
Rotational impact protection systems are not included in all bike helmets, but every helmet in our review has this vital safety feature. For more information about the technology in a Mips helmet, see this section of our Best Ski Helmets guide and in our Best Road Bike and Commuter Bike Helmets guide. The technology is ubiquitous across helmets in multiple sports because of its safety features.
Mips vs WaveCel vs Koryd
Besides Mips, there are other safety features in helmets on the market today, including WaveCel and Koroyd. Koroyd adds extra protection against direct and angled impacts by absorbing some of the force of that impact. Since it’s not designed to protect against rotational force, Koroyd is often paired with Mips in a helmet.
WaveCel is another newer-to-market safety feature that absorbs both direct and rotational impacts.
There are no conclusive studies that prove that either WaveCel or Koryd systems are better than the other. Still, there is significant scientific evidence that they help to reduce injury to the brain in the event of a crash. So we don’t recommend one over the other but simply encourage bikers to find a mountain bike helmet that includes any of these important safety features.
What to look for in a MTB helmet
The Lazer Chiru is an impressive budget helmet at a fraction of the cost of other helmets. Photo by Tom Callaghan.
SAFETY FEATURES
The first and most important factor in your helmet is what safety features it includes. As we mentioned, we believe that any good mountain bike helmet should have quality, high-density foam paired with some form of rotational impact protection system (like Mips). See more on this in our Safety section.
FIT
For your helmet’s safety features to work, you should also ensure that the helmet fits well to do its job properly. (If you’re buying a helmet online, measuring your head should give you the info you need to pick the correct size.) A properly fitting bike helmet should be snug but not constricting on your head. You should be able to nod your head vigorously, and the helmet should stay put. The chin strap should be gently snug around your chin without causing discomfort for your neck or throat; if it’s too loose, it won’t do its job of keeping the helmet on your head correctly.
MTB helmets should feel comfortable for whatever conditions you ride.
VISORS
After considering safety components and a good fit, look to the features to find a good helmet. Most mountain bike helmets (and all of the ones in our review) have visors to block the sun and protect from branches and other debris on the trail. If you aren't sure, some MTB helmets offer a detachable visor.
AIR VENTS
Good air vents are also ideal for managing sweat on summer rides. And, of course, you want to ensure that your helmet is comfortable to wear for several hours at a time.
Weight
The weight of your mountain bike helmet matters, especially for days filled with lots of pedaling. How important weight is will depend a lot on your riding style and what else you prioritize in your helmet, including added features. A lighter helmet will be more comfortable to wear when you’re climbing and pedaling a lot.
Safety features
All of the helmets we reviewed and considered are tested by third parties, like Virginia Tech. While all of these helmets are made with good foam and shell materials, they all also have some sort of additional rotational impact protection, like MIPS. Any good mountain bike should have these safety features. Some helmets, however, have additional safety features that go above and beyond, like RECCO reflectors and medical ID chips. These features inevitably cost more, so consider whether these are worth it to you.
Compatibility with other gear
The primary consideration when it comes to helmet compatibility with other gear is eyewear. Different helmets will have different fits, and some are even designed to work specifically with certain pairs of sunglasses. If you can try the helmet on with your MTB sunglasses, that will ensure a comfortable fit. If you want to wear goggles with your helmet, ensure they’re compatible and try them on with the helmet if you can.
Accessory mounts
Many bike helmets have venting that’s also designed to store a pair of sunglasses when they’re not in use, without requiring additional accessories. Other mounts to consider, such as camera mounts, are typically not included with the helmet. If you plan to use one, check the helmet shell to ensure it has a mounting location that suits your needs.
See our guide on GoPro Hero 12 accessories in our GoPro Hero 12 review, or see accessories for other cameras in our review of the Insta360 X3 Action camera.
NO-How NOT to store a helmet.
Care and Maintenance
Store your helmet upright in a cool, dry place out of direct sunlight. Heat and UV exposure degrade the materials over time, even between rides.
For cleaning, rinse mud or dirt off the shell with water and let it air dry. Most helmets have removable padding that can be hand washed with mild soap and warm water. Rinse thoroughly before letting them dry and putting them back in. Leftover soap residue degrades the padding over time and makes for an unpleasant experience when it mixes with sweat on a hot climb. Skip disinfecting sprays and wipes unless you're sharing a helmet — the chemicals in most of them shorten the life of the materials.
When to replace a helmet
YES-How to store a helmet.
Replace it after any crash where you hit your head. This is not optional. The foam can compress in ways that aren't visible externally, and a compromised helmet won't protect you the same way in a second impact. Check for cracks or dents after any significant fall, but replace it regardless if your head made contact.
Even without a crash, replace your helmet every three to five years with regular use. Sun exposure, sweat, and normal wear degrade the materials in ways that aren't always obvious from the outside.
Also keep an eye on straps, buckles, and the internal retention system. Frayed straps, a buckle that won't stay closed, or a fit dial that no longer adjusts properly are all reasons to replace the helmet. And if the fit changes significantly for any reason — a major haircut, changes in head shape — and you can't dial it back in, replace it. A helmet that doesn't fit correctly can't do its job. For help identifying a trustworthy replacement, see our Best MTB Brands guide.
FAQ
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Mountain bike helmets reduce head injury risk by 51% and fatal head injuries by 65% according to research published in the International Journal of Epidemiology . A crash on a bike, especially at high speeds, can mean serious injury to the head and brain, and wearing a bike-specific helmet significantly decreases this risk. Mountain bike helmets are designed specifically to absorb the type of impact from bike crashes, providing better coverage on the back and sides of the head compared to road helmets. From cross-country to downhill riding, you should wear a helmet anytime you hop on two wheels, as even low-speed crashes can result in serious head injuries.
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Any mountain bike helmet with a 5-star Virginia Tech safety rating and MIPS protection offers top-tier safety, though mountain bike-specific helmets provide better coverage than road or commuter helmets. We cross-referenced our recommendations with Virginia Tech Helmet Lab's independent safety study, which rates helmets on a 5-star scale. Helmets like the Fox Speedframe Pro and Giro Manifest Spherical earn 5-star ratings while offering additional features like MIPS rotational impact protection, RECCO reflectors, and medical ID chips. Remember that while helmets significantly reduce injury risk, they're no replacement for trail awareness and knowing your abilities.
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Yes, always replace your helmet after any crash where it impacts your head, even if no visible damage is apparent. It's time for a new helmet if there are dents, cracks in the shell, or damage to the MIPS liner, as internal damage may not be visible. Modern helmet materials are designed to absorb impact energy by deforming or cracking, which compromises their ability to protect in future impacts. Store your helmet upright in a safe, dry area away from direct sunlight to prevent unnecessary damage between rides.
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Yes, many brands like Giro, Fox, and Specialized offer replacement parts for visors and padding, making this more affordable and sustainable than buying a new helmet. However, ensure the main safety components (shell and foam) are undamaged before ordering replacement parts. Washable antimicrobial padding can often be removed and cleaned, while adjustable visors may break away in crashes as a safety feature. If you're unsure about component damage, consult the manufacturer or local bike shop before attempting repairs.
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MIPS (Multi-directional Impact Protection System) reduces rotational forces by 10-15mm during angled impacts and is found in most premium helmets today. This low-friction layer allows slight movement between your head and helmet during crashes, potentially reducing brain injury risk from rotational forces. Virginia Tech testing consistently shows MIPS-equipped helmets dominating safety rankings, with alternatives like WaveCel and Koroyd offering similar protection. While MIPS adds 25-45 grams of weight and slightly increases cost, the safety benefits make it worthwhile for most riders, especially given that most crashes involve angled impacts rather than direct hits.
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A properly fitted mountain bike helmet should sit level on your head with the front edge 1-2 finger widths above your eyebrows. The helmet should feel snug but not tight, staying in place when you shake your head vigorously. Adjust the dial system so there's no sliding movement, and ensure chin straps form a "V" shape under your ears with about one finger's space under your chin. Many MIPS helmets fit slightly smaller than non-MIPS versions, so consider sizing up if between sizes. The helmet should not rock forward, backward, or side to side when properly adjusted.
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Mountain bike helmets should be replaced every 3-5 years even without crashes due to material degradation from UV exposure, sweat, and normal wear. Replace immediately after any impact to your head, regardless of visible damage, as the protective foam may be compromised. Signs it's time for replacement include visible cracks, dents, worn straps, loose fit adjustments, or if the helmet no longer fits properly due to changes in your head size or hair. Store helmets properly in cool, dry places away from direct sunlight to maximize lifespan.
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While possible, mounting accessories can compromise helmet safety and effectiveness in crashes. Some helmets include integrated camera mounts designed to break away during impacts, but aftermarket mounts may create snag points or penetration risks. If mounting accessories, ensure they don't interfere with proper fit or ventilation, and consider that any protrusion could cause injury or affect the helmet's protective capabilities. For lighting, dedicated helmet-mounted bike lights designed for cycling use are safer than improvised mounting solutions. Always check manufacturer guidelines before adding any accessories to your helmet.
The author testing the Lazer Chiru helmet. Photo by Tom Callaghan.
How We Researched and Tested
We spent hours researching over 50 mountain bike helmets on the market, looking for the best safety ratings and ideal features at a reasonable price point. We referenced Virginia Tech Helmet Lab ratings, looking for the ones with the highest safety standards.
Then, we searched for the most popular and loved helmets by both outdoor media and everyday customers, which narrowed our search to about a dozen top contenders. From there, we took the helmets and our two wheels to the trails, testing for fit, comfort, breathability, and other features to land on the best mountain bike helmets on the market.
- Colorado Front Range & Breckenridge trails
- Technical downhill & desert routes
- XC climbing & flow trail riding
- Hot summer & cool spring conditions
- Tested with multiple sunglasses & goggles
- Virginia Tech safety ratings
- MIPS, WaveCel & Koroyd protection systems
- Ventilation across effort levels & temps
- Fit comfort across head shapes & sizes
- Coverage, visor adjustability & eyewear compatibility
A good bike helmet has safety features as well as fit and ample air vents. Photo by Tom Callaghan.
The author Stasis Stockwell is a true mountain dweller.
About the Author: Why You Should Trust Us
A true mountain dweller, Stasia Stockwell feels far more at home on a high alpine ridge than a busy city street. She writes primarily in the outdoor and adventure travel realm, focusing on destination content and gear reviews that are intriguing and informative for newcomers and experts alike. She’s worked as a backpacking guide in southeast Alaska and written for BACKPACKER, REI Co-op Journal, and The Dyrt, along with her work for Treeline Review. She’s a lifelong skier, mountain biker, backpacker, and trail runner who’s passionate about lowering barriers to entry for outdoor sports.
Stasia has been mountain biking since she was a kid, having grown up riding on northern Utah’s cross country trails. She now spends her summers biking on trails around her home in Breckenridge, Colorado, every chance she gets. From short after-work loops to 100-mile rides through the Utah desert, if she’s on two wheels, she’s smiling.
Read more about her on her website on her author page.
