Top 12 Best Mountain Bike Helmets for Big Heads Revealed!

Struggling with discomfort and constant adjustment during rides is a common issue for those who need the best mountain bike helmets for big heads. Standard helmets often feel too tight in some spots and loose in others, leading to pressure points or the helmet shifting unexpectedly. This can cause distraction and reduce safety on rough trails, making the ride unpleasant and sometimes risky.

A good mountain bike helmet designed for larger heads focuses on proper sizing and fit, usually accommodating head circumferences above 61 cm comfortably. High-quality materials like polycarbonate shells combined with EPS foam lining offer solid impact protection without adding extra weight. Ventilation is key too, with enough airflow to prevent overheating during long rides.

Adjustable straps and padding help fine-tune the fit, keeping the helmet stable and secure, which is crucial for comfort and safety on the trail.

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Our Top Picks 1
Schwinn Thrasher Helmet
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Our Top Picks 2
ONeal Sonus Deft Helmet
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Our Top Picks 3
Giro Register MIPS II XL
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Our Selected Top 12 Mountain Bike Helmets for Big Heads Worth Your Money

This list features carefully chosen mountain bike helmets designed specifically for larger heads, highlighting their fit and comfort. Each review covers performance details, ideal user types, and the main advantages and disadvantages to help you make an informed choice.

1. Schwinn Thrasher Adult Bike Helmet

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Schwinn Thrasher Adult Bike Helmet is designed for fitness and recreational riders with bigger heads, fitting head circumferences from 58 to 62 cm. Its standout feature is the adjustable dial retention system, which ensures a secure and comfortable fit during rides.

Setting up the helmet is straightforward thanks to the dial retention system that adjusts with a simple twist. Side and chin straps let you fine-tune the fit, which helps keep everything stable and comfortable on longer rides. The removable visor is handy when the sun is strong, and the full-coverage padding can be taken out for washing, making it easy to keep fresh.

Built with microshell construction, the helmet remains lightweight without compromising on durability. The 360° padding offers all-around comfort, protecting while still staying breathable.

The biggest compliment is how snug and secure it feels throughout various rides. Some users mentioned a slight limitation for those with heads larger than 62 cm.

The helmet’s adjustable dial and full 360° padding make it both secure and comfortable for extended use. Most praise focuses on the fit system’s ease of adjustment, while the frequent complaint is its limitation in accommodating head sizes beyond 62 cm.

Cyclists with larger heads up to 62 cm will appreciate the fit and comfort offered. Those needing a helmet for larger head sizes might want to look at bigger options elsewhere, as this model won’t meet those needs effectively.

Pros

  • Adjustable dial for a precise fit
  • Removable and washable padding
  • Lightweight microshell design
  • Easily removable sun visor

Cons

  • Fits heads only up to 62 cm circumference
  • Padding may feel thin for some users
SpecificationDetails
Head Circumference Fit58 – 62 cm
Age RangeAdult (14+)
Retention SystemAdjustable dial
PaddingFull-coverage, removable, washable
ConstructionMicroshell
Warranty2 year limited warranty

2. ONeal Sonus Deft Mountain Bike Helmet

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Wearing this helmet feels comfortable even during long rides thanks to its roomy fit, designed to suit bigger heads without feeling tight. Its strongest point is the secure yet easy magnetic buckle that lets you fasten and release the helmet with one hand.

Putting it on and adjusting it is simple, with multiple air vents keeping you cool on warm days. The inner liner is thick and plush, and can be removed for washing, which helps keep it fresh through regular use. It stays in place during rides, and the padding does a good job absorbing sweat.

The shell made from ABS feels sturdy and reliable. Safety is taken seriously, with the helmet meeting the EN1078 standard.

Many find the ventilation enough to prevent overheating, but some note the helmet could be a bit lighter. The magnetic Fidlock buckle is praised for quick fastening, though a few mention it can be tricky with gloves.

The helmet’s most praised feature is its magnetic Fidlock buckle that lets you fasten or release it quickly with just one hand. On the downside, several reviews mention it can be fiddly when wearing gloves, which may affect ease of use in colder weather. Its ventilation and padding keep comfort high during rides.

People with larger heads looking for a breathable, comfortable helmet and simple fastening will appreciate this design. Those wanting a lighter helmet or who frequently ride with thick gloves might consider other options better suited to their needs.

Pros

  • Roomy fit for bigger heads
  • Easy magnetic buckle fastening
  • Good ventilation with multiple vents
  • Removable and washable padded liner

Cons

  • Some find it a bit heavy
  • Buckle can be tricky with gloves
SpecificationDetails
Shell MaterialABS
Safety StandardExceeds EN1078
Buckle TypeFidlock magnetic buckle
VentilationMultiple air vents
Inner LinerUltra-plush, removable, washable
Age Range DescriptionAbove 5 Years

3. Giro Register MIPS II Helmet XL

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Great for riders with larger heads, the Giro Register MIPS II Helmet XL offers solid protection with a comfortable fit. Its standout strength is the integrated MIPS system, which helps reduce rotational forces during impact, making it a reliable choice for serious mountain biking safety.

Getting set up is pretty straightforward, thanks to the helmet’s two-piece hardshell design that balances durability with manageable weight. The polycarbonate lower wrap fuses to the liner, keeping the helmet sturdy but not bulky.

Adjusting the fit on bigger heads is easier here, and it stays comfortable on longer rides without feeling overly tight or heavy.

Protection is the main selling point, and this helmet delivers by meeting and exceeding safety standards, particularly with MIPS technology built right in. The hard outer shell and in-mold lower wrap give confidence in crashes. Most users appreciate the solid feel and secure fit, while the occasional gripe involves the bulkiness some find compared to slimmer helmets.

It’s built tough but not without a bit of extra weight.

Many appreciate the reliable protection and sturdy feel that comes with the integrated MIPS system and two-piece shell. The most frequent downside mentioned is the helmet’s bulk and weight, which can feel noticeable during longer rides or for those used to lighter gear.

The helmet suits riders needing extra space and strong impact protection without compromising safety standards. Those looking for a lighter, more compact helmet might want to consider alternatives better tailored to a minimalist style.

Pros

  • Integrated MIPS system for rotational force reduction
  • Durable two-piece hard shell construction
  • Comfortable fit for larger heads
  • Exceeds standard safety requirements

Cons

  • Heavier than some other mountain bike helmets
  • Bulkier design may feel less streamlined
SpecificationDetails
Model NameRegister Mips II XL Helmet
Brand NameGiro
Manufacturer Part Number7202089
Number of Items1
Included ComponentsOne Helmet
Model Number7202089

4. SMITH Engage MIPS Cycling Helmet

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Zonal Koroyd coverage forms the core of the design, making this helmet great for anyone with a larger head who needs serious trail protection without feeling weighed down. Ventilation and safety features stand out, offering a solid balance for aggressive mountain biking on varied terrain.

Adjusting the helmet is straightforward thanks to its lightweight, low-bulk single-layer webbing and adjustable visor for sun and debris management. It fits well on bigger heads without tight spots, and the Ionic+ lining helps keep sweat odors under control. Twenty fixed vents keep air flowing, preventing overheating and fogging on goggles or glasses during rides.

Protection is confidently delivered through MIPS technology combined with energy-absorbing Koroyd material, meeting multiple safety standards like U.S. CPSC and CE EN 1078. The helmet stays lightweight yet durable for rocky and technical trails.

Praise often goes to its breathability and fit, while some mention the fixed vents limit airflow adjustment for variable conditions.

The helmet is praised for its breathability and fit, especially for larger heads, while complaints focus on the fixed vent design which can’t be adjusted for changing weather or trail dust. It offers strong protection and keeps the wearer cool during intense riding.

Riders with bigger heads looking for solid protection and airflow on dry trails will appreciate this helmet. Those who often ride in wet or dusty environments might want a helmet with adjustable vent options instead.

Pros

  • Lightweight yet protective Koroyd material
  • Excellent ventilation with 20 fixed vents
  • Adjustable visor for sun and debris control
  • Ionic+ lining controls sweat odors

Cons

  • Fixed vents limit airflow customization
  • Some find the vent placement less ideal in wetter conditions
SpecificationDetails
Model NameEngage MIPS
Safety FeaturesMIPS Safety Protection System, Koroyd Coverage
Ventilation20 fixed vents
FitAdjustable visor, single-layer webbing
StandardsU.S. CPSC, CE EN 1078, AS/NZS 2063

5. Unbranded Mountain Bike Helmet

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Fit stands out as the biggest advantage here, built to comfortably accommodate larger heads without feeling tight or restrictive. Suitable for adults who need a reliable helmet for rugged mountain trails, it offers solid protection paired with a practical design.

Getting ready to ride is straightforward thanks to the included visor and adjustable fit options. The helmet’s 18 vents with internal channeling keep airflow flowing smoothly, helping you stay cool during long rides on fire roads or technical trails.

Comfort remains consistent mile after mile without feeling heavy or cumbersome.

Protection is a key priority with a tough polycarbonate shell coupled to an impact-absorbing EPS foam liner. This combination keeps weight down without skimping on safety.

Most users appreciate its full coverage and durability, though a common downside is limited color choices, which might not suit everyone’s style preferences.

Strong protection comes from a full coverage polycarbonate shell and EPS foam liner, balanced with a lightweight feel. The most commonly noted issue concerns the helmet’s limited color choices, which can feel a bit plain for those looking for a more unique style.

Individuals needing a dependable and comfortable helmet for bigger heads will find this a practical choice. Riders who prioritize more vivid styling or personalization might want to look elsewhere for options with more color variety.

Pros

  • Fits large heads comfortably
  • 18 vents for good airflow
  • Lightweight despite solid protection
  • Includes a useful visor

Cons

  • Limited color options
  • Style may feel basic to some
SpecificationDetails
Model NameLA303
Brand NameBATFOX
Age Range DescriptionAdult
Included ComponentsVisor
Manufacturer Part NumberLA303
Warranty Description1 year

6. ILM Adult Bike Helmet with LED Lights

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Great for riders with larger heads needing solid protection and extra visibility, ILM’s Adult Bike Helmet with LED Lights stands out due to its built-in USB rechargeable front and rear lights. It suits urban cyclists and commuters who want a helmet that combines safety certifications with practical lighting for better road presence.

Setup is straightforward, coming with a USB charging cable and a tinted visor that snaps on easily. Day-to-day use is comfortable thanks to its one-piece EPS and PC shell construction designed to absorb shocks better. The large fit option accommodates bigger heads without feeling tight, and charging the LED lights is simple via USB, so you’re ready for rides even after dusk.

The helmet delivers on safety with certifications like ASTM, CPSC, CE, and EN1078, reassuring on different terrains including city streets and trails. Its build feels solid rather than flimsy, while the integrated lights improve nighttime visibility noticeably. Some find the helmet a bit heavier than expected, but most praise its durability and bright LEDs.

The helmet’s strongest point is its built-in LED lights that boost visibility and safety during night rides without extra gear. Users appreciate the certified protection and the larger fit, though some mention it feels heavier than expected, which could be a concern on longer rides.

Riders with bigger heads who prioritize visibility and certified safety will find this helmet a good match. Those seeking a super lightweight helmet or needing detailed battery performance info might want to look elsewhere.

Pros

  • USB rechargeable front and rear LED lights
  • Certified by ASTM, CPSC, CE, and EN1078 for safety
  • Large size fits bigger heads comfortably
  • Includes tinted visor for sun protection

Cons

  • Heavier compared to some other helmets
  • LED light battery life not specified
SpecificationDetails
Brand NameILM
Model NameE3-10L
Included ComponentsUSB charging cable, bike helmet, tinted visor, user manual
Age Range DescriptionAdult
Manufacturer Part NumberIRUS-FA-E3-10L-MB-L+XL
Warranty Description5 Year Manufacturer

7. Unbranded Mountain Bike Helmet with Adjustable Fit

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Riding on rough trails can be tricky when your helmet doesn’t fit quite right. Designed for bigger heads, this mountain bike helmet offers solid protection without feeling heavy.

Its strongest feature is the adjustable fit system that comfortably hugs your head without pressure spots, making long rides more enjoyable.

Adjusting the fit is straightforward, allowing a snug hold whether you’re on a quick ride or tackling steep terrain. The helmet weighs only 330g, so it barely feels like you’re wearing one.

Ventilation is decent enough to keep you cool on warmer days. Cleaning is simple since it’s made from materials that don’t trap dirt easily.

Protection-wise, it meets U.S. CPSC standards with a high-density EPS foam core and durable PC outer shell fused in one solid piece. The extended coverage around the back and sides feels reassuring on technical trails.

Most praise goes to its lightweight comfort, while some mention the ventilation could be better for very hot rides.

The helmet impresses with its lightweight feel and solid fit, making long rides comfortable without causing pressure. However, some find the ventilation lacking during very warm days on the trail. The basic design keeps things simple but might feel plain to those seeking more airflow or additional features.

People with larger heads looking for a dependable, comfortable helmet will appreciate the fit and protection it offers. Those who often ride in very hot climates might want to explore helmets with more advanced ventilation systems.

Pros

  • Lightweight at only 330g
  • Secure adjustable fit
  • Covers back and sides well
  • Meets U.S. CPSC safety standards

Cons

  • Ventilation could improve for hot weather
  • Basic design without extra features
SpecificationDetails
Brand NameANYPASS
Model Name015
Weight330g
Safety StandardsU.S. CPSC
Warranty2 Year Manufacturer

8. ILM Full Face Mountain Bike Helmet

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Full-face coverage stands out on this helmet, making it a reliable choice for those with larger heads who need solid protection on rough trails. Its extended chin bar and included goggles provide added defense where it counts the most while riding off-road or on an e-bike.

Adjusting the fit is straightforward thanks to an adjustable buckle and size adjuster, which helps secure the helmet comfortably on bigger heads. The visor can be moved easily to block sunlight or adjust to trail shadows. Goggles come with the package, so you’re ready to ride without extra gear purchases.

The helmet meets ASTM F1447 and CPSC safety standards, equipped with a durable EPS foam shell and an EPP-reinforced chin bar that offers strong impact absorption. Many find protection reassuring, and the goggles fit well, although some mention the helmet can feel a bit bulky when worn for extended periods.

Protection and coverage get high marks, especially the extended chin bar and included goggles. The bulkiness and weight show up often as drawbacks when the helmet is worn for hours on end. Safety standards and materials back its reliability out on the trail.

Riders who prioritize maximum face protection and a secure fit will find this helmet satisfying. Those looking for something extremely light or less bulky during long rides may want to explore other options better suited for minimalist comfort.

Pros

  • Extended chin bar for extra face protection
  • Adjustable visor adapts to light conditions
  • Stable and customizable fit for big heads
  • Includes goggles for immediate trail readiness

Cons

  • Feels bulky during long rides
  • Heavier compared to some lightweight helmets
SpecificationDetails
Model NameHT58
Safety StandardsASTM F1447 and CPSC Certified
Fit SystemAdjustable buckle and size adjuster
Shell MaterialDurable black EPS foam
Chin BarEPP reinforced
Included AccessoriesPair of goggles, adjustable visor

9. Giro Fixture MIPS II Bike Helmet XL

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Mountain bikers with larger heads will appreciate this Giro Fixture MIPS II helmet for its roomy fit and solid safety features. It particularly suits those who want a secure helmet without feeling weighed down, making its lightweight design the standout feature.

Adjusting the fit is straightforward thanks to the integrated system that combines MIPS technology with an easy turn dial. The helmet feels breathable due to the way the outer shell is bonded to the foam, which helps maintain good airflow during longer rides in warm weather.

Wearing it day after day, it stays comfortable and doesn’t shift around.

Protection is a major highlight, with the integrated MIPS system designed to reduce rotational forces during impacts. The fused shell and foam construction keep the helmet sturdy yet light. Many appreciate how cool it stays under the sun, while a few mention the limited color options as a drawback.

The MIPS brain protection combined with the adjustable fit is praised for its effectiveness and comfort on long rides. Most users find the helmet stays cool and fits well, though some wish there were more style choices available to suit different preferences.

This helmet fits riders who need a size XL and want lightweight protection with strong safety features. Riders looking for more size diversity or color variety may prefer to explore other helmets better suited to those needs.

Pros

  • Roomy fit for large heads (58-65 cm)
  • Lightweight due to fused shell and foam design
  • Integrated MIPS system for added brain protection
  • Good airflow keeps head cool

Cons

  • Limited color options available
  • Only comes in one size range (XL)
SpecificationDetails
Brand NameGiro
Model NameFixture MIPS II
Item Type NameBike Helmet – Matte Black/Grey – Universal X-Large (58-65 cm)
Manufacturer Part Number7202109
Number of Items1

10. Fly Racing Rayce Full-Face Mountain Bike Helmet

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Designed with a full-face poly-alloy shell and EPS liner, this mountain bike helmet suits riders needing a secure, protective fit for big heads. Its standout feature is the lightweight design, making it easier to wear during long downhill sessions without feeling weighed down.

Setting up is straightforward with an adjustable fit and removable liner that makes cleaning quick and simple. The true functional ventilation system keeps air flowing well, so you stay cooler when riding in warm weather. Cheek pads add extra comfort without making things feel cramped, which is key for bigger head sizes.

Protection meets comfort thanks to solid certifications like ASTM F1952-15 and CE EN1078. The helmet balances weight and durability well, with a commonly noted benefit being its light feel during extended rides.

The main complaint in reviews revolves around ventilation being less effective on extremely hot days, which can cause some heat buildup.

The helmet receives strong praise for its balanced lightweight feel combined with solid protection across certifications. Ventilation does not always keep up in the hottest weather, making temperature management a concern during intense rides under the sun.

Riders who prioritize safety and comfort on downhill trails will appreciate the helmet’s protective features and fit for larger heads. Those frequently biking in extreme heat might prefer a model with enhanced airflow to avoid potential discomfort.

Pros

  • Lightweight at approximately 930 g for size M
  • Full-face design for maximum protection
  • Removable, washable liner and cheek pads
  • Effective ventilation with multiple ports

Cons

  • Ventilation struggles in very hot conditions
  • Fit might feel tight for very large heads
SpecificationDetails
Model NameRayce
Weight (size M)Approx. 930 g
Shell MaterialPoly-alloy
Safety StandardsASTM F1952-15, CPSC 1203, CE EN1078
Included ComponentsHelmet

11. Bell Sixer MIPS Helmet

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Bell Sixer MIPS Helmet offers solid protection for mountain bikers with bigger heads, focusing on safety through its unique construction. Its standout feature is the fusion in polycarbonate shell combined with progressive EPS layering, making it durable and impact-resistant.

Putting it on feels secure thanks to the Float Fit Race system integrated with MIPS, which helps manage rotational forces during impacts. The helmet’s shape accommodates larger head sizes comfortably without feeling cramped.

Its construction bonds the outer shell directly to the inner foam, improving strength while keeping weight balanced for longer rides without discomfort.

The helmet performs well on rough trails, absorbing impacts effectively through its multilayered EPS foam of varying densities. The polycarbonate roll cage visible on the outside adds toughness to the shell. Most praise highlights the helmet’s safety technology and sturdy build.

A common note is that venting could be better for airflow in hot conditions.

The helmet’s most praised aspects are its safety features like the fusion bonded construction and MIPS system, which provide solid protection on challenging trails. Ventilation is the most frequent drawback, with some users feeling it traps heat during intense rides. This helmet suits riders prioritizing safety and fit for bigger heads, but those wanting maximum airflow might look elsewhere.

People with larger head sizes looking for reliable impact protection will appreciate the secure and comfortable fit here. Riders often riding in hot climates or who want a lighter, more breathable helmet could consider alternative options that specialize more in airflow.

Pros

  • MIPS technology reduces rotational impact forces
  • Comfortable for large head sizes
  • Strong fusion in polycarbonate shell
  • Integrated Float Fit Race adjustment system

Cons

  • Could improve ventilation for warm weather
  • Heavier than some other helmets
SpecificationDetails
Brand NameBELL
Model NameSixer MIPS
Manufacturer Part Number7142494
Age Range DescriptionAdult
Included ComponentsBike Helmet
Unit Count1 Count

12. SMITH Pilot MTB Cycling Helmet XL

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Feels surprisingly light on even the biggest heads, making long rides comfortable. Designed for mountain bikers who need a roomy fit without compromising safety. Its strongest feature is the fully adjustable fit system that keeps the helmet secure without pressure points.

Setting it up is straightforward thanks to the easily adjustable dial that lets you tighten or loosen the helmet quickly. The integrated MIPS system adds confidence during all types of trails by reducing rotational impact forces.

The ventilation is solid enough to keep air flowing without overexposing your head to dust and debris, and the visor helps block sun glare on downhill sections.

Protection feels solid, meeting U.S. CPSC and CE EN 1078 standards, which reassures a lot given the helmet’s lightweight design. The build balances comfort and safety with effective breathability and coverage. Most appreciated feature is the secure fit system, though some users mention the weight might feel a bit much after very long rides compared to simpler bike helmets.

The most praised aspect is the comfortable and secure adjustable fit that suits bigger heads well. The most common downside mentioned is the helmet’s weight, as some riders feel it becomes noticeable on longer rides.

Anyone needing reliable safety combined with a roomy fit will appreciate this helmet. It is ideal for regular trail riders and all-mountain cyclists. Riders looking for a very lightweight helmet or maximum ventilation might want to explore alternatives.

Pros

  • Adjustable dial fit for secure comfort
  • Integrated MIPS safety system
  • Lightweight but protective design
  • Visor shields eyes on sunny rides

Cons

  • Heavier than some non-MIPS helmets
  • Ventilation could be improved for very hot days
SpecificationDetails
Brand NameSMITH
Model NamePilot
Safety TechnologyMIPS
Age Range DescriptionAdult
Item HighlightMountain Bike Helmet with MIPS Technology + Visor
Number of Items1

Comparison of Best Mountain Bike Helmets for Big Heads

ProductBrandAge RangeSizeWarranty
Schwinn Thrasher HelmetSchwinnAdult––
ONeal Sonus Deft HelmetO’NEALAbove 5 Years––
Giro Register MIPS II XLGiroAdultXL–
SMITH Engage MIPS HelmetSMITHAdult––
Unbranded Mountain HelmetBATFOXAdult–1 year
ILM LED Bike HelmetILMAdultL+XL–
Unbranded Adjustable HelmetANYPASSAdult–2 Year Manufacturer
ILM Full Face HelmetILMAdultMB-L–
Giro Fixture MIPS II XLGiroAdultXL (58-65 cm)–
Fly Racing Rayce Full-FaceFly RacingAdult––
Bell Sixer MIPS HelmetBELLAdult–2 Year Manufacturer
SMITH Pilot MTB XLSMITHAdultXL–
1. Schwinn Thrasher Helmet
  • BrandSchwinn
  • Age RangeAdult
  • Size–
  • Warranty–
2. ONeal Sonus Deft Helmet
  • BrandO’NEAL
  • Age RangeAbove 5 Years
  • Size–
  • Warranty–
3. Giro Register MIPS II XL
  • BrandGiro
  • Age RangeAdult
  • SizeXL
  • Warranty–
4. SMITH Engage MIPS Helmet
  • BrandSMITH
  • Age RangeAdult
  • Size–
  • Warranty–
5. Unbranded Mountain Helmet
  • BrandBATFOX
  • Age RangeAdult
  • Size–
  • Warranty1 year
6. ILM LED Bike Helmet
  • BrandILM
  • Age RangeAdult
  • SizeL+XL
  • Warranty–
7. Unbranded Adjustable Helmet
  • BrandANYPASS
  • Age RangeAdult
  • Size–
  • Warranty2 Year Manufacturer
8. ILM Full Face Helmet
  • BrandILM
  • Age RangeAdult
  • SizeMB-L
  • Warranty–
9. Giro Fixture MIPS II XL
  • BrandGiro
  • Age RangeAdult
  • SizeXL (58-65 cm)
  • Warranty–
10. Fly Racing Rayce Full-Face
  • BrandFly Racing
  • Age RangeAdult
  • Size–
  • Warranty–
11. Bell Sixer MIPS Helmet
  • BrandBELL
  • Age RangeAdult
  • Size–
  • Warranty2 Year Manufacturer
12. SMITH Pilot MTB XL
  • BrandSMITH
  • Age RangeAdult
  • SizeXL
  • Warranty–

How to Choose the Right Mountain Bike Helmet

Proper fit, adequate ventilation, and strong impact protection are key factors when selecting a mountain bike helmet for larger heads. Choosing the right helmet ensures comfort during long rides and prevents safety issues, ultimately saving money by avoiding frequent replacements or injury-related costs.

Fit and Size Adjustability

A helmet that fits loosely or squeezes uncomfortably quickly ruins a ride. Larger heads need helmets that not only cover the scalp fully but also adjust precisely.

Many helmets label sizes by circumference, so look for those clearly listing measurements above 60cm or even around 64cm. Adjustable retention systems at the back allow you to tighten or loosen the fit easily during a ride. Without this feature, even a large helmet can slip or feel unstable.

Thicker padding sounds good, but poorly placed cushions can compress uncomfortably on broad foreheads or temple areas. It’s better to have foam strategically spread out, with removable pads for tuning the space inside.

Velcro or snap-in padding options help avoid hotspots and pressure points common in bigger helmets. Straps should be both webbed and adjustable for a snug, yet non-restrictive fit.

Safety and Certification

Mountain biking involves rough trails, so a helmet’s safety certifications offer real confidence. Check for CPSC certification in the US or ASTM standards for offroad use.

They confirm the helmet passed tests against typical impact forces encountered while riding.

Additional impact protection such as MIPS or rotational impact systems reduces whiplash risks from angled hits. Coverage matters too; helmets that extend lower towards the back of the head protect better on steep descents or falls. Choose models where the shell wraps around the sides sufficiently, not just the crown.

Ventilation and Comfort

Long rides can get sweaty and uncomfortable if the helmet traps heat. Count the vents but pay more attention to their placement and size.

Well-designed helmets channel air from front intake vents over the head and out exhaust holes at the rear. The ventilation should remain functional for larger head sizes without parts pressing in.

Padding fabrics that wick moisture and allow airflow keep skin dry and reduce irritations. Materials like mesh combined with foam liners strike a balance between cushioning and breathability. Avoid thick pads that may interfere with airflow or cause pressure points on bigger heads, even if they look plush.

Durability and Build Materials

Durability hinges largely on the shell and liner materials. Quality mountain bike helmets use polycarbonate shells for impact resistance coupled with EPS foam liners to absorb shocks.

These materials protect while keeping weight moderate.

Repeated impacts happen on the trail, so choose a product with strong construction, visible bonding, and even foam density. Some helmets reinforce vulnerable zones like the temple or rear with extra stiff layers.

This adds protection without making the helmet bulky or heavy.

Additional Features and Practicality

Accessories like goggles or action cameras are common, so helmets should offer compatibility with mounts or strap guides. Larger helmets sometimes complicate fitting goggles securely; built-in clips or channels help keep them stable.

Removable liners and pads that can be washed help keep the helmet fresh after sweaty rides or dusty conditions. Weight distribution matters too, uneven heaviness near the front or sides strains the neck over time.

Features aimed at noise reduction reduce wind whistle, making longer rides less fatiguing.

Proper Fit and Adjustment Techniques for Large Head Helmets

Finding a mountain bike helmet that fits a larger head comfortably involves more than just choosing the right size on the label. Helmet fit should feel snug but not tight. The shell must cover the forehead properly, sitting about one to two finger-widths above the eyebrows.

Most helmets designed for bigger heads have adjustable internal fit systems like dials or straps, which allow precise tuning around the circumference.

To adjust:

  • Start by loosening all straps and the fit system.
  • Place the helmet level on your head and slowly tighten the fit system until the helmet feels secure without pressure points.
  • Adjust the side straps to form a “V” shape just beneath the ears.
  • Buckle the chin strap and tighten it so only one or two fingers fit comfortably between the strap and chin.
  • Shake your head gently to confirm it stays in place without discomfort.

Proper adjustments prevent shifting during rides and improve protection effectiveness.

Maintaining and Cleaning Your Mountain Bike Helmet for Longevity

Regular maintenance keeps a mountain bike helmet functional and safe for many seasons. Dirt, sweat, and oils can degrade materials over time, so cleaning after heavy use is important. Use mild soap and lukewarm water with a soft cloth or sponge to wipe down the helmet’s exterior and interior padding.

Avoid harsh chemicals or abrasive tools, as they can compromise the helmet’s structural integrity or finish.

Remove the padding if possible and wash separately by hand to keep it fresh. After cleaning, air dry the helmet naturally away from direct sunlight or heat sources, which may weaken the materials. Inspect the helmet frequently for cracks, dents, or damaged straps, replacing it after a significant impact or every few years following manufacturer guidance.

Proper storage away from extreme temperatures and sharp objects also helps extend the helmet’s lifespan.

Comparing Mountain Bike Helmets for Big Heads with Alternative Protective Gear

Mountain bike helmets designed for larger heads are often compared to other types of head protection like full-face helmets or bike-specific caps. These helmets provide similar safety levels but differ in coverage and ventilation. Full-face helmets offer more facial protection, preferred for downhill or aggressive riding, but they tend to be heavier and warmer.

Mountain bike helmets for big heads balance coverage with airflow, important during long climbs or hot weather.

Compared to general cycling helmets, those tailored for bigger heads include wider size ranges and adjustable mechanisms to cater to varying head shapes. Alternative protective gear such as padded caps or skull caps add comfort but lack crash protection.

The bigger helmets are better suited for absorbing impacts and reducing injury risk. Choose the helmet that matches your riding style and comfort preferences rather than just relying on alternative gear alone.

People Also Asked

How Do I Measure My Head for a Big Helmet?

Measure around the widest part of your head, usually about an inch above your eyebrows. Use a flexible tape measure and keep it snug but not tight to get the most accurate size for a big helmet.

Are Mountain Bike Helmets for Big Heads Comfortable to Wear?

Big head helmets can be comfortable if they have adjustable interior padding and good ventilation. Trying a few different models helps because fit and comfort can vary between brands and styles.

How Often Should I Replace a Mountain Bike Helmet?

Replace a mountain bike helmet every 3 to 5 years or after any significant impact. The foam inside compresses over time and loses its ability to protect, even if there are no visible cracks.

Can I Use a Big Head Helmet with Goggles?

Yes, big head helmets can be used with goggles, but make sure the helmet’s visor is adjustable or you have enough space for the goggle strap. Trying the combo on before buying helps avoid tight spots or fogging issues.

What Common Problems Do Big Head Helmets Have?

Common problems include uneven padding causing pressure points and less ventilation due to the larger shell size. Also, bigger helmets sometimes feel heavier and harder to keep secure during rough rides.

Conclusion

Choosing a mountain bike helmet for a big head mainly comes down to fit, comfort, and safety features. The helmet should feel snug without causing pressure points, provide enough ventilation for long rides, and meet recognized safety standards.

Size adjustment options are important to get a secure fit since big heads can vary in shape as well as size.

Consider how often you will ride and where to pick a helmet that suits your budget and storage space. A more affordable helmet might work for occasional use, while daily riders might want something more durable and breathable. Refer back to the comparison table and detailed picks above to find the helmet that fits your specific needs best.

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