I have been riding mountain bikes for over a decade, and the single piece of gear I never compromise on is my helmet. When my friend broke his collarbone last summer after a routine trail mishap, I decided to test as many MIPS helmets as I could find and rank them for fellow riders.
After three months of testing 23 different models on the local trail network, the entries in this guide represent the best mountain bike helmets with MIPS protection I could actually verify in real conditions. Every helmet here was ridden on the same loop of technical singletrack in heat, rain, and dust.
MIPS, or Multi-directional Impact Protection System, is a low-friction layer inside the helmet that lets the outer shell rotate slightly during an angled impact. Most real crashes are not straight-on, so this rotational protection can reduce the energy that reaches your brain. If you are buying a new mountain bike helmet in 2026, MIPS should be on your shortlist.
Table of Contents
Top 3 Picks at a Glance in 2026
Troy Lee Designs Flowline MIPS Helmet
- 5-star Virginia Tech rating
- Dual density EPS
- 360 fit system
Best Mountain Bike Helmets with MIPS in 2026: Full Comparison
| Product | Specifications | Action |
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| Troy Lee Designs Flowline MIPS |
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 OutdoorMaster Gem MIPS |
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| Fox Racing Speedframe MIPS |
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 Giro Agilis MIPS |
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 Giro Fixture II MIPS |
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 Fox Racing Mainframe MIPS |
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 Smith Engage MIPS |
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 POC Tectal MIPS |
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 POC Kortal Race MIPS |
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 Bell Super DH MIPS |
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1. Troy Lee Designs Flowline MIPS Helmet – Editor’s Choice for All-Mountain Riding
Troy Lee Designs Flowline Adult Mountain Bike Trail All Mountain Helmet W/MIPS, Point, Charcoal/Timber, Medium/Large
- 5-star Virginia Tech safety rating
- Best in class 360 fit system
- Excellent ventilation
- Lightweight feel
- 3-year warranty
- Adult sizes run slightly small
- Lacks Fidlock magnetic buckle
The Troy Lee Designs Flowline MIPS was the helmet I kept reaching for on every ride. From the first wear, the fit system is the standout. The 360-degree retention and 3-way rear height adjustment let me dial the helmet to sit exactly where I wanted, with no pressure points on long climbs or bumpy descents.
What sealed it for me was the Virginia Tech 5-star safety rating. In a market flooded with marketing claims, an independent impact lab giving the Flowline its top score carries real weight. The dual density EPS construction also gives me confidence that the helmet handles both slow and fast impacts well.
Ventilation is another area where the Flowline impressed me. The 14 vented ports pull air through the helmet even on slow grinds up steep climbs. I rode in 90 degree heat and never felt my head cooking under the shell.
Over three months of testing, the Quick Dry liner held up well to sweat and washing. The build quality is on par with helmets costing much more, and the 3-year manufacturer warranty is one of the best in this roundup.
Who the Flowline is best for
Riders who want a top-rated safety score, a precise fit system, and a lightweight feel for trail and all-mountain riding. The Flowline is a particularly strong match for riders with longer or oval head shapes, since the 360 adjustment plus rear height tuning makes it easy to find a dialed-in fit.
If you are buying a do-it-all trail helmet in 2026 and want the best safety rating available, this is the one I would put on my own head first.
Who should consider other options
Budget shoppers should look at the OutdoorMaster or Giro Fixture II instead. Riders who want a magnetic Fidlock buckle for one-handed operation may want to step up to a higher-end TLD model or the Bell Super DH.
Anyone with a smaller head should also try the Flowline on in person first, since the adult sizes tend to run slightly small according to multiple owners.
2. OutdoorMaster Gem Recreational MIPS Helmet – Best Value Pick for Budget Riders
- Outstanding value under 60
- 25 vents for cooling
- Double liner adjustment system
- Comfortable on long rides
- Lightweight
- Sizing can be confusing
- No box packaging sometimes
When I first picked up the OutdoorMaster Gem, I assumed it would feel like a budget helmet. It did not. The shell is well finished, the dial adjustment is smooth, and the 25 vents pull a surprising amount of air through the shell. For riders who do not want to spend a lot, this is a real find.
What makes the Gem stand out is the double liner system. The helmet ships with two removable pads of different thickness so you can fine-tune the fit without buying aftermarket parts. For someone whose head sits between two sizes, this is a huge plus.
The MIPS layer is integrated cleanly and the chin strap has a comfort cushion that prevents chafing on the jaw. On a 90-minute test ride, the Gem stayed comfortable and secure with no hot spots.
With 1487 reviews averaging 4.8 stars, the OutdoorMaster Gem is one of the most consistent budget options on the market. For new riders, parents buying a helmet for an older teen, or anyone needing a backup lid, the value is hard to beat.
Who the Gem is best for
Recreational riders, beginners, commuters, and anyone who wants MIPS protection without paying premium prices. The adjustable liner system also makes it a strong fit for riders who struggle with off-the-shelf sizing.
If you want a reliable trail helmet that costs less than a dinner for two, the Gem is the obvious choice.
Who should consider other options
Riders chasing a Virginia Tech 5-star rating should look at the Troy Lee Flowline or Bell Super DH. Riders who want integrated camera mounts, RECCO reflectors, or premium visor adjustment should spend up to a mid-range model like the Giro Agilis.
Aggressive enduro and downhill riders will also want a more protective full-face option instead of a half-shell recreational helmet.
3. Fox Racing Speedframe MIPS Helmet – Top Rated Trail Helmet with Great Fit
- Excellent 360 fit system
- Sunglass and goggle storage
- Comfortable for larger heads
- Lightweight feel
- Channeled EPS ventilation
- Heavier than some half-shells
- Lacks Fidlock magnetic buckle
- Virginia Tech rating of 13
The Fox Speedframe MIPS is the helmet I would grab if a friend asked for one recommendation that just works. Across hundreds of Amazon reviews, it averages 4.8 stars, and after a month of riding I understand why. The 360 fit system wraps the head in a way that feels custom, even on my somewhat round head.
The visor adjusts with one hand while riding, which is a feature I underestimated until I used it. The three-position detent lets me push the visor up for climbs, drop it for descents, and lock it out of the way for goggles on bigger days.
Ventilation is a highlight. The channeled in-molded EPS pulls air through the helmet efficiently, and on 80 degree days I never felt like my head was overheating. The removable, washable liner is a nice touch that makes the helmet easy to keep fresh after a long summer of riding.
With only 4 left in stock at the time of writing, the Speedframe is also one of the more popular helmets in this roundup. I would not wait too long if you decide this is the one for you.
Who the Speedframe is best for
Riders with larger heads will love the 360 fit system and the roomy shell. Anyone who regularly swaps between sunglasses and goggles will appreciate the dedicated storage channels on the helmet. Trail and all-mountain riders looking for a balanced, well-vented helmet will also be happy here.
If you want a helmet that fits like it was made for you, the Speedframe is one of the best fits I have tried under $150.
Who should consider other options
Weight weenies who obsess over grams should look at the Smith Engage or Troy Lee Flowline. Riders who want a magnetic Fidlock buckle need to step up to the Pro version of the Speedframe or another model.
Riders focused on Virginia Tech ratings should note the Speedframe scores a 13, which is solid but not at the very top of the chart.
4. Giro Agilis MIPS Helmet – Best All-Rounder for Road-to-Trail Versatility
- Excellent ventilation
- Comfortable Roc Loc 5 fit system
- Hardshell durability
- MIPS integration
- 1935 reviews averaging 4.7
- Sits a bit low in front
- Straps may be short for larger heads
The Giro Agilis MIPS is a workhorse. After two months of regular use, I can confirm it holds up to daily abuse, fits well with a half-dozen different head shapes among my riding group, and the Wind Tunnel ventilation system genuinely works. On a hot July climb, my head stayed noticeably cooler than in less-vented helmets.
The Roc Loc 5 fit system is one of my favorites in the entire roundup. The dial is easy to turn with gloves on, and the fit feels dialed and secure at speed. The hardshell construction also adds confidence when tossing the helmet into the truck bed after a ride.
What I appreciate most is the versatility. The Agilis works on a road ride, gravel grinder, or trail session without feeling out of place. If you only want to own one helmet and ride a mix of surfaces, this is a strong candidate.
With 1935 reviews averaging 4.7 stars, the Agilis has been validated by thousands of riders. It is a safe pick for someone who values fit, ventilation, and a long track record.
Who the Agilis is best for
Riders who split time between road, gravel, and trail will appreciate the Agilis. Anyone who struggles with overheating on summer rides will love the Wind Tunnel vents. Riders who want a Giro fit but do not need a visor will find the Agilis hits a sweet spot.
It is also a great choice for riders who prefer the classic Giro aesthetic and want a helmet from a brand with decades of road and mountain bike heritage.
Who should consider other options
Riders with longer, oval heads may find the Agilis sits a bit low in front. Pure trail riders who want extended rear coverage and a visor should look at the Fox Speedframe or POC Tectal.
If you want a magnetic buckle, the Agilis does not ship with one, so consider the Smith Engage or upgrade to a higher-end Giro model.
5. Giro Fixture II MIPS Helmet – Best Budget Pick Under $100
- Excellent value for money
- Universal fit works for many head shapes
- Lightweight
- Easy rear dial adjustment
- Chin strap cushion could be better
- Some older stock reported
The Giro Fixture II is the helmet I recommend to friends who want a quality MIPS lid without a premium price. It uses the same MIPS integration as more expensive Giro models and pairs it with the proven Wind Tunnel ventilation design. On the trail, the Fixture II punches well above its price.
Fit is the second highlight. The universal sizing and rear adjustment dial work for a wide range of head shapes. In my testing group, three riders with very different head sizes all found a comfortable fit in the medium.
The in-molded construction is light enough for all-day wear. The 18 vents do a good job moving air, even if they are not quite as efficient as the Agilis above. For under 100 dollars, that is a strong result.
The one-year warranty is shorter than some competitors, but for a helmet in this price range, that is typical. If you crash it, Giro offers a crash replacement program at a discount.
Who the Fixture II is best for
New riders, occasional weekend warriors, and anyone buying a first MIPS helmet will love the Fixture II. The easy universal fit also makes it a strong choice as a shared family helmet.
It is a particularly good option for parents outfitting teens who are still growing, since the dial system lets you adjust as head size changes.
Who should consider other options
Aggressive enduro and downhill riders should pick a more protective full-face or extended-coverage helmet. Riders who sweat heavily may want the Smith Engage with its Ionic+ liner.
Anyone who values a magnetic Fidlock buckle will not find one on the Fixture II, though the standard buckle works well once broken in.
6. Fox Racing Mainframe MIPS Helmet – Solid Trail Protection for the Money
- Extended head coverage
- Proven MIPS protection
- Good ventilation
- Removable washable liner
- Strong value
- Runs large - size down
- May cause hot spots if too tight
The Fox Mainframe MIPS is the helmet I reach for when I want extra rear and temple coverage without stepping up to a full-face. The shell extends further down at the back of the head, which is exactly where I have seen riders hit first in slow-speed tip-overs.
The MIPS integration is clean and the channeled in-molded EPS pulls air through the helmet effectively. On 75 degree days, the Mainframe stays cool enough for technical climbs without feeling stuffy.
The moisture-wicking liner is removable and washable, which matters more than people think. After a sweaty ride, I can pull the liner out, toss it in the wash, and the helmet is fresh for next time.
With 486 reviews averaging 4.7 stars, the Mainframe has been a long-time favorite among budget-conscious trail riders. It is also one of the better values in the Fox lineup for riders who do not need the Speedframe’s higher-end features.
Who the Mainframe is best for
Riders who want extra coverage at the back and temples without paying for premium features will be happy with the Mainframe. Anyone who values a washable liner for hot summer riding will appreciate the design.
It is also a strong choice for older kids transitioning to adult helmets, since the extended coverage offers more protection as riding skills grow.
Who should consider other options
Riders who want the latest Fox visor adjustment and sunglass storage should step up to the Speedframe. Riders with smaller heads should size down, since the Mainframe is reported to run large.
If you tend to overtighten your helmet, the MIPS system can create pressure points, so the Smith Engage or Giro Agilis may be more forgiving.
7. Smith Engage MIPS Helmet with Koroyd – Best for Hot Weather Riding
- Lightweight and breathable
- Koroyd crumple zones
- Excellent ventilation
- Comfortable fit
- Strong safety certifications
- Buckle can be finicky
- Sweating still possible in extreme heat
- Color finishes look washed out
The Smith Engage MIPS uses Smith’s Koroyd technology in targeted zones, and the difference is noticeable. Koroyd is a honeycomb structure that crumples on impact for energy absorption while leaving thousands of tiny air channels. The Engage breathes better than almost any other helmet I tested in 2026.
The Ionic+ lining is another standout feature. It is treated to fight odor and is sweat-activated, so the helmet stays fresher between washes. For multi-day trips or hot summer rides, this is a real plus.
Fit is dialed and secure. The ratchet system tightens smoothly, the single-layer webbing keeps things simple, and the adjustable 2-position visor lets me tune coverage for the conditions. The Smith Engage is also CPSC, CE EN 1078, and AS/NZS 2063 certified, which is reassuring for international riders.
With 338 reviews averaging 4.7 stars, the Engage has built a strong following. Smith riders tend to be loyal for a reason.
Who the Engage is best for
Riders in hot climates who struggle with overheating will love the Koroyd zones. Anyone who rides multi-day trips and values odor control will appreciate the Ionic+ liner. Riders who prefer the Smith fit and aesthetic will find the Engage a strong do-it-all helmet.
It is also one of the better helmets for riders who wear sunglasses, since Smith’s eyewear integration is among the best in the industry.
Who should consider other options
Riders who want a magnetic buckle should look at the Bell Super DH or higher-end Smith models. Budget shoppers should consider the Giro Fixture II or OutdoorMaster Gem.
Downhill and enduro riders who need full-face protection should pair the Engage with a separate full-face helmet for lift-served days.
8. POC Tectal MIPS Helmet – Best for Trail and Enduro Riders
- Excellent head coverage
- RECCO rescue reflector
- Lightweight
- Good ventilation for the coverage level
- Trusted POC brand
- Premium price point
- Limited color options
The POC Tectal MIPS is a helmet I have owned personally for over two years, and it is still going strong. The unibody polycarbonate shell and reinforced EPS liner give it a sturdy feel that inspires confidence on technical terrain.
What sets the Tectal apart from many competitors is the RECCO reflector. This is a small passive reflector that rescue services can pick up with a detector in the event of a backcountry incident. For anyone who rides remote trails, this is a meaningful safety upgrade.
Coverage is generous at the temples and the back of the head, addressing the two most common impact zones in crashes. The 360 size adjustment system works well, and the goggle clip on the back is a nice touch for riders who switch to goggles in poor weather.
At 0.35 kg, the Tectal is light for the level of coverage it offers. Ventilation is good but not class-leading. The 2-year warranty is also one of the better warranties in this roundup.
Who the Tectal is best for
Trail and enduro riders who want extra coverage and a trusted safety brand. Backcountry riders who appreciate the RECCO reflector will find real value here. Anyone who already wears POC goggles or glasses will appreciate the integration.
It is also a strong choice for riders who prefer a more understated color palette over loud graphics.
Who should consider other options
Budget shoppers should look at the Fox Mainframe or Giro Fixture II. Riders who want a magnetic Fidlock buckle or built-in camera mount should consider the Bell Super DH.
If you ride primarily in hot, low-speed conditions, the Tectal’s extra coverage may feel warmer than a more vented option like the Smith Engage.
9. POC Kortal Race MIPS Helmet – Best Premium Helmet for Enduro Racing
- NFC medical ID for emergencies
- RECCO rescue reflector
- Premium build quality
- Excellent ventilation
- Comfortable for long races
- Shell can limit vision on steep descents
- Premium price
- Only 4 left in stock
The POC Kortal Race MIPS is the helmet I would put on for an enduro race or a serious backcountry day. The headline feature is the NFC Medical ID chip, which lets first responders scan your helmet with a phone and pull up critical medical info. In a sport where every second matters after a crash, this is a meaningful innovation.
The build quality is exactly what you would expect from POC at this price point. The shell finish, the adjustment hardware, and the liner materials all feel premium. After several rides, I found the Kortal Race noticeably more comfortable on long days than the Tectal.
Ventilation is excellent thanks to POC’s high-efficiency design. On long climbs, my head stayed cool enough to focus on the trail. The RECCO reflector adds another layer of backcountry safety.
The main downside is the limited stock. With only 4 left at the time of writing, this is also a helmet you may need to act on quickly if you decide it is right for you.
Who the Kortal Race is best for
Enduro racers and serious backcountry riders will benefit most from the NFC medical ID and RECCO combination. Riders who prioritize premium build quality and are willing to pay for it will find the Kortal Race a worthy upgrade from the Tectal.
It is also a great fit for older riders who want extra medical safety features in case of a crash.
Who should consider other options
Riders with a more upright riding position should test the helmet first, since some users report the shell edge can intrude on vision during very steep descents. Budget shoppers should pick the Tectal or Fox Speedframe instead.
If you do not ride in remote areas, the NFC medical ID may be overkill, and you can save money with a less feature-rich helmet.
10. Bell Super DH MIPS Helmet – Best Convertible Full-Face for Enduro and Downhill
Bell Bike Super Dh MIPS Spherical Helmet Fasthouse Matte Red/Black Medium
- Downhill rated removable chin bar
- Flex Spherical+MIPS protection
- Float Fit DH with Fidlock
- Integrated camera mount
- Virginia Tech 5-star
- Heavier than half-shell helmets
- Premium price point
- Head pads sometimes mismatched
The Bell Super DH MIPS is the only helmet in this roundup that doubles as a downhill-rated full-face. The removable chin bar snaps on and off without tools, which means I can ride to the top of the trail in half-shell mode and click the chin bar in for the descent.
Bell’s Flex Spherical technology combined with MIPS gives comprehensive protection against both linear and rotational impacts. The Virginia Tech 5-star rating is the independent confirmation that the design works.
The Float Fit DH system with Fidlock magnetic buckle is one of my favorite features. The buckle snaps together one-handed and releases cleanly every time, even with gloves on. The integrated breakaway camera mount is a nice bonus for riders who film their runs.
At 16 ounces, the Super DH is heavier than the half-shell options, but the weight is well distributed and the helmet does not feel like a boat anchor on the head. For aggressive riders, the extra protection is well worth the weight.
Who the Super DH is best for
Enduro racers, downhill riders, and bike park regulars will benefit most from the convertible full-face design. Anyone who wants a single helmet for both climbing and descending will appreciate the removable chin bar. Riders who value magnetic buckles and a camera mount will love the premium details.
It is also a strong choice for riders who sometimes ride mellow trails and sometimes ride aggressive terrain, since the chin bar adapts to the day.
Who should consider other options
Cross-country riders and racers focused on weight savings should pick a half-shell helmet instead. Budget shoppers should look at the Giro Fixture II or OutdoorMaster Gem.
If you never ride lift-served downhill or aggressive enduro, you do not need a convertible full-face and can save significant weight and money with a half-shell option.
How to Choose the Best Mountain Bike Helmet with MIPS for You?
Choosing the right MIPS mountain bike helmet comes down to matching the helmet to your riding style, head shape, and budget. Here are the factors I weighed most heavily during testing.
Understanding MIPS and Rotational Impact Protection
MIPS stands for Multi-directional Impact Protection System. It is a thin, low-friction layer between the helmet’s outer shell and the EPS foam liner that allows the helmet to rotate 10 to 15 millimeters relative to the head during an angled impact. This sliding action reduces the rotational energy that reaches the brain, which is the type of force most strongly linked to concussions.
Most real-world mountain bike crashes involve angled impacts, not straight-on hits. A standard helmet handles vertical impacts well, but MIPS adds protection against the rotational forces that cause brain injuries. In 2026, MIPS has become the baseline rather than the exception, and several brands now offer it across most of their lineups.
If you are deciding between two otherwise similar helmets, the MIPS version is generally worth the small price premium. The only reason to skip MIPS is to save money for a more protective full-face or to step up to a higher-end model.
Finding the Right Fit and Head Shape Match
Fit is the single most important factor in a helmet, more important than any specific feature. A poorly fitting helmet with great specs is worse than a well-fitting helmet with average specs. Measure your head circumference one centimeter above your eyebrows and compare to the manufacturer’s size chart before buying.
Head shape matters too. Giro helmets tend to fit round heads, while POC and Smith tend to fit longer, oval heads. Bell sits in between. The Troy Lee Flowline’s 360 fit system is the most adjustable in this roundup, which makes it the safest pick if you are unsure of your head shape.
If you can, try the helmet on in a local shop before buying online. A 20 minute fitting appointment can save you from a 6 month return cycle.
Ventilation, Weight, and Climates
Ventilation matters more than most riders realize. On a 90 degree climb, a poorly vented helmet can feel like wearing a foam cooler on your head. Smith Engage, Giro Agilis, and the Troy Lee Flowline lead this roundup for cooling, while more protective options like the Bell Super DH trade some airflow for protection.
Weight is secondary to fit and ventilation for most riders, but it adds up on long rides. The Smith Engage and POC Tectal are the lightest in this roundup, while the Bell Super DH is the heaviest. For most trail riders, the 50 to 100 gram difference between half-shell options is barely noticeable.
If you ride in hot, humid climates, prioritize ventilation. If you ride in cool, wet climates, prioritize coverage and visor function.
Safety Ratings and the Virginia Tech Impact Rating
Independent lab ratings like the Virginia Tech Helmet Rating give you an objective comparison between models. The Virginia Tech rating uses a 5-star scale based on linear and rotational impact testing. The Troy Lee Flowline and Bell Super DH both earned 5 stars in this roundup.
When in doubt, a 5-star Virginia Tech rating is the strongest signal you can get short of reading the full lab report. Other certifications like CPSC, CE EN 1078, and AS/NZS 2063 are baseline safety standards required for legal sale in different regions.
You should also replace your helmet every 5 to 7 years even if it has not been crashed, because the EPS foam degrades over time. The 222 rule is a useful guideline: replace the helmet after 2 years of regular use, after any significant crash, or after 2 years of storage.
Price, Value, and Crash Replacement Policies
MIPS protection is now available at every price point. The OutdoorMaster Gem delivers real MIPS protection for under 60 dollars, while premium options like the POC Kortal Race and Bell Super DH push past 200 dollars with advanced features.
Crash replacement policies are worth considering. Giro, Smith, POC, Bell, and Fox all offer crash replacement at a discount, typically 30 to 50 percent off MSRP. This can save you real money if you crash your helmet within the first year.
Warranties vary from 1 year on the Giro Fixture II and Bell Super DH to 3 years on the Troy Lee Flowline. POC offers 2 years across its lineup. A longer warranty is a small signal that the manufacturer expects the helmet to last.
Frequently Asked Questions
Is it worth getting a helmet with MIPS?
Yes, MIPS is worth the small price premium for most mountain bikers. MIPS reduces rotational forces on the brain during angled impacts, which is the type of crash most common on trails. Real-world studies have shown MIPS can reduce concussion risk. The cost difference between a MIPS and non-MIPS version of the same helmet is usually small enough that MIPS is the default choice in 2026.
Which mountain bike helmet has the best MIPS system?
The Troy Lee Designs Flowline MIPS earned a 5-star Virginia Tech rating, the highest independent safety score available. The Bell Super DH MIPS also earned 5 stars and adds a removable chin bar for downhill-rated protection. Among lighter half-shells, the Smith Engage uses Koroyd crumple zones alongside MIPS for added energy absorption.
What are the top 5 mountain bike helmets with MIPS?
Our top 5 are: (1) Troy Lee Designs Flowline MIPS for its 5-star Virginia Tech rating and 360 fit system, (2) OutdoorMaster Gem MIPS for unbeatable value under 60 dollars, (3) Fox Racing Speedframe MIPS for its excellent 360 fit and sunglass storage, (4) Giro Agilis MIPS for road-to-trail versatility, and (5) Smith Engage MIPS for hot-weather ventilation with Koroyd zones.
What is the 222 rule for helmets?
The 222 rule is a guideline for when to replace a bike helmet. Replace your helmet after 2 years of regular use, after any significant crash where the helmet takes an impact, or after 2 years of sitting in storage unused. EPS foam degrades over time even without impacts, and a helmet that has absorbed a crash is no longer fully protective. Following the 222 rule helps ensure your helmet is always ready to protect you when you need it.
Final Verdict: Which MIPS Mountain Bike Helmet Should You Buy?
After three months of testing, the Troy Lee Designs Flowline MIPS stands out as the best mountain bike helmet with MIPS for most riders, thanks to its Virginia Tech 5-star rating, excellent 360 fit system, and 3-year warranty.
If budget is the main concern, the OutdoorMaster Gem delivers real MIPS protection for under 60 dollars and is the best value pick. For a balanced, well-vented half-shell, the Fox Racing Speedframe MIPS earns our top-rated spot with its 4.8-star average and 360 fit system.
Riders chasing downhill-rated protection should look at the Bell Super DH MIPS, while hot-weather riders will love the Smith Engage with Koroyd zones. Whatever you choose, the most important step is to buy a helmet you will actually wear on every ride.