XXL Bicycle Helmets for Big Heads – No Pressure Points, True Large Fit
Fortunately for cyclists looking for a bike helmet for their big head, finding an XXL bicycle helmet just got easier. We’ve put together a selection of them on this page from some of the biggest names in bicycle helmets.
Designed to fit riders with head circumferences of 63 – 66 cm (24.8 – 26 inches), these helmets have certified impact protection that meets CPSC, EN1078, and/or other standards. Manufacturers design XXL helmets with larger shell molds, adjustable retention systems, and extended padding to maintain a secure fit and comfort during cycling.
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If your head circumference is less than XXL helmet size, then you will still find a helmet here that will fit your big head as all the helmets below are available in smaller sizes.
Bike Helmets For Big Heads Comparison
| Model | Type | Safety Tech | Weight | MSRP* USD |
|---|---|---|---|---|
| Trek Starvos WaveCel | Road/Recreational | WaveCel | 300-385g | $115 |
| Trek Circuit WaveCel | Road/Commuter | WaveCel + BOA | 356-383g | $175 |
| Lumos Ultra Smart | Commuter/Urban | MIPS (optional) | 370g | $160 |
| Smith Optics Signal MIPS | Road/Gravel | MIPS + Koroyd | 300g | $95 |
| Giro Syntax MIPS | Road/Gravel | Integrated MIPS | 326-340g | $160 |
| Smith Optics Payroll MIPS | E-Bike/MTB/Trail | MIPS + Koroyd | 414g | $230 |
| Smith Optics Triad | Road/Gravel/Trail | MIPS + Koroyd | 290g | $225 |
| Giro Cormick MIPS | Urban/Commuter | Integrated MIPS | ~350g | $70 |
| Lazer Tonic KinetiCore | Road/Recreational | KinetiCore | 240g | $80 |
| Lazer Coyote KinetiCore | MTB/Trail/Gravel | KinetiCore | 340g | $120 |
| * Prices shown are manufacturer’s suggested retail price (MSRP) and may differ from retailer pricing. | ||||
Before you start looking for an oversized helmet to fit your head, please be sure about your head size. See our article ‘How To Know Your Helmet Size’ to learn more about getting the correct size for your head. Or, better still, scroll down and watch our video How To Measure For A Bike Helmet.
VIDEO: How To Measure For A Bike Helmet
A properly fitted helmet is the most important aspect of head safety. A helmet that is too loose or too tight will not be comfortable and may not protect your head adequately if you have an accident.
Best XXL Bicycle Helmets for Big Heads for 2026
Trek Starvos WaveCel Cycling Helmet
The Trek Starvos WaveCel brings premium rotational impact protection to an accessible price point, making it ideal for riders who want advanced safety technology without breaking the bank. As one of the few WaveCel helmets available in true XL sizing (up to 66cm), it’s specifically engineered for riders with larger head shapes who’ve struggled to find proper-fitting helmets. Expect excellent ventilation and lightweight comfort, though the exposed EPS rim means you’ll need to handle it carefully.
Pros
- WaveCel technology at entry-level price
- True XL size fits 60-66cm heads
- Lightweight across all sizes
- One-handed Headmaster fit adjustment
- Crash Replacement Guarantee (first year)
Cons
- Exposed EPS foam rim vulnerable to damage
- Runs slightly large (size down if between sizes)
- Basic padding compared to premium models
- No visor included
Related Article: Mountain Bike Helmets for Big Heads
Trek Circuit WaveCel Road Bike Helmet
The Trek Circuit WaveCel transforms from commuter to performance helmet in seconds thanks to removable Blendr magnetic mounts for lights and cameras. Built with 50% post-consumer recycled materials and featuring integrated WaveCel protection, it bridges the gap between everyday reliability and race-day performance. The BOA fit system delivers premium adjustment, though the added WaveCel material does compromise ventilation compared to traditional helmets.
Pros
- Blendr magnetic mounts for lights/cameras
- BOA fit system for precise adjustment
- 50% recycled materials
- Works for both commuting and performance riding
- Crash Replacement Guarantee
Cons
- Heavier than MIPS-only alternatives
- Ventilation reduced by WaveCel material
- Higher price point for mid-range helmet
- Can feel warm in summer temperatures
Lumos Ultra Smart Bike Helmet
The Lumos Ultra stands alone as the most technologically advanced helmet for visibility-conscious riders, featuring 94 integrated LEDs including front lights, rear lights, and handlebar-controlled turn signals. The optional automatic brake light system (requires Lumos Remote upgrade) adds another safety layer for urban commuting. While heavier than traditional helmets at 370g and requiring regular charging, it eliminates the need for separate bike lights and dramatically improves 360-degree visibility.
Pros
- 360-degree visibility with integrated lights
- Turn signals controlled via handlebar remote
- Automatic brake lights (with Lumos Remote)
- Bluetooth app integration for customization
- 4-10 hour battery life depending on settings
Cons
- Requires regular charging (3 hours)
- Heavier than non-smart helmets
- Premium price for smart features
- Battery not user-replaceable
Related Article: Motorcycle Helmets for Big Heads
Smith Optics Signal MIPS Adult Bike Helmet
The Smith Optics Signal MIPS delivers premium impact protection at a mid-tier price with MIPS coverage. The VaporFit system offers true 270-degree adjustment and integrates seamlessly with Smith eyewear through the AirEvac ventilation system. Available in XL sizing for larger heads, it’s lighter than expected at 300g and performs well across road, gravel, and commuting applications.
Pros
- MIPS rotational impact protection
- Excellent value at $95
- XL size available for big heads
- Integrates perfectly with Smith eyewear
- VaporFit 270-degree adjustment
Cons
- Exposed EPS liner edges
- Straps can be difficult to adjust initially
- Limited color options in XL
- Standard buckle (not magnetic)
Giro Syntax MIPS Bike Helmet
The Giro Syntax MIPS combines sleek European styling with deeply integrated MIPS technology and exceptional airflow through 25 wind-tunnel-tested vents. The Roc Loc 5 Air system suspends the helmet slightly off your head for enhanced cooling while maintaining security. With four sizes including XL (up to 65cm), it offers a low-profile fit that avoids the “mushroom head” look, though it tends to run large so sizing down is recommended.
Pros
- Integrated MIPS enhances ventilation
- Low-profile European styling
- Excellent cooling with 25 vents
- Roc Loc 5 Air suspends helmet off head
- Four sizes including XL
Cons
- Runs large (size down if between sizes)
- Basic strap quality for the price
- Exposed EPS on some edges
- Vertical adjustment only when not wearing
Related Article: Ski Helmets for Big Heads
Smith Optics Payroll MIPS E-Bike/MTB Helmet
The Smith Optics Payroll MIPS earns NTA 8776 e-bike certification through deeper coverage and enhanced impact protection designed for speeds up to 28mph. Combining MIPS, zonal Koroyd, and an integrated skeletal structure creates a comprehensive safety system that excels in both trail and e-bike applications. The magnetic buckle and three-position visor add convenience, though the 414g weight make it feel more substantial than standard trail helmets.
Pros
- NTA 8776 e-bike certified for high speeds
- Triple protection: MIPS, Koroyd, skeletal structure
- Deeper coverage for back and sides
- Magnetic buckle works with gloves
- Three-position adjustable visor
Cons
- Heavier than standard trail helmets
- Premium price point
- MIPS liner can wiggle on heavy landings
Smith Optics Triad Cycling Helmet
The Smith Optics Triad combines MIPS and zonal Koroyd in an impressively lightweight 290g package that works equally well for road, gravel, and light trail riding. The front and rear eyewear storage channels add practical convenience. It’s one of the lightest dual-protection helmets available, though you’ll pay a premium for the advanced safety features.
Pros
- Lightweight at only 290g for dual protection
- Front and rear eyewear storage
- VaporFit 270-degree adjustment
- Versatile for road, gravel, and trail
Cons
- Higher base price than similar helmets
- Koroyd not as extensive as other Smith models
- Limited color options
Related Article: What Is MIPS Protection In A Helmet?
Giro Cormick MIPS Bike Helmet
The Giro Cormick MIPS delivers essential rotational impact protection and deeper side/rear coverage in a versatile urban helmet that costs significantly less than road-specific models. The Universal Adult sizing (54-61cm) with XL option (58-65cm) makes fitting larger heads straightforward, while the built-in soft visor provides better sun protection than typical plastic visors. It’s heavier and less ventilated than performance helmets, but that’s expected at this accessible price point.
Pros
- Integrated MIPS at budget price
- Deeper coverage than road helmets
- Built-in soft visor more effective than plastic
- Universal sizing simplifies fit
- Reflective elements for visibility
Cons
- Heavier than road-specific helmets
- Less ventilation than performance models
- More upright fit limits aerodynamics
- Basic aesthetics
Lazer Tonic KinetiCore Bike Helmet
The Lazer Tonic KinetiCore achieves an impressive 240g weight while incorporating Lazer’s integrated rotational impact protection system, making it one of the lightest protected helmets at any price. Built 4% lighter than the MIPS version with 20g less plastic, it offers exceptional value for recreational riders who want modern safety features without premium pricing. The Advanced TurnSys system and four-size range including XL make fitting larger heads straightforward, though ventilation and padding are adequate rather than exceptional.
Pros
- Exceptionally lightweight at 240g
- KinetiCore rotational protection built-in
- Four sizes including XL (61-64cm)
- Advanced TurnSys dial with vertical adjustment
- Compatible with Lazer Winter Kit
Cons
- Basic padding quality
- Straps absorb sweat readily
- Middling ventilation performance
- Vertical adjustment only when not wearing
Related Article: Is MIPS Really Worth It?
Lazer Coyote KinetiCore Bike Helmet
The Lazer Coyote KinetiCore earned Virginia Tech’s prestigious 5-star rating while maintaining a competitive $120 price point, proving that premium protection doesn’t require premium spending. The KinetiCore controlled crumple zones provide both direct and rotational impact protection in a design that’s 3% lighter and better ventilated than the previous MIPS version. The magnetic buckle works effortlessly with gloves, though the helmet sits slightly higher on the head than some competitors and initial strap adjustment can be fiddly.
Pros
- 5-star Virginia Tech safety rating
- Excellent value at $120
- Magnetic buckle easy with gloves
- Superior ventilation from KinetiCore design
- Three-position adjustable visor
Cons
- Sits higher on head than some helmets
- Strap dividers fiddly to adjust initially
- Larger overall profile
- Visor not as refined as premium models
Related Article: Do Bike Helmets Really Work?
Frequently Asked Questions
What helmet size do I need for a big head?
Are WaveCel, MIPS, and KinetiCore all the same thing?
Do I really need rotational impact protection?
Why are larger helmet sizes heavier?
Can I use a road helmet for mountain biking if it fits my big head?
Do smart helmets with lights work as well as regular bike lights?
How do I know if a helmet will fit my head shape?
I hope we have covered the subject of ‘bike helmets for big heads’ to your satisfaction. If you enjoyed this article, feel free to leave a comment or question below. Thanks!
Related Reads:
- How To Clean A Bike Helmet
- Why Do Bike Helmets Have Holes?
- Are Expensive Bike Helmets Worth It?
- Low Profile Bike Helmets
- Mountain Bike Helmet Vs Road Bike Helmet
- Affordable MIPS Bike Helmets
- Types Of Bike Helmets
- Bike Helmet Storage Ideas
- When To Replace A Bike Helmet
- How To Wear A Bike Helmet
- Bicycle Helmet Laws by State
- Bike Helmet Size Charts
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Headline promises XXL helmets then lists nothing larger than XL
When looking for a helmet, you shouldn’t be looking for XXL, or XL, or L or any other nomenclature. There is no standard sizing for bicycle helmets, different brands have different measurements.
The bicycle helmets listed on this page are among the largest sizes available (up to 66cm or 26 inches).
Measure your head, then find a helmet that matches your head size.
If you really want an XXL helmet, you could try Troy Lee Designs. They have XXL but it only measures 63cm or 24.75 inches.
So, why does the title say “XXL Bicycle Helmets”? Because I know the difficulty that large-headed people deal with trying to find a helmet that fits.
There are so many disappointments when searching for a large helmet. So many websites with ‘Bicycle Helmets for Big Heads’, and the largest size is less than 64cm.
In the United States, you won’t find a bicyle helmet larger than 66cm. Smith Optics has 67cm ski helmets, but their bicycle helmets stop at 65cm.
If you need a helmet larger than what is available, you could try an open-face motorcycle helmet. Some are available up to 27 inches.
Hi! My son needs an XL helmet but for racing triathlons. He loves Rudy Project but the L is too small. Do you know of a high performance aerodynamic helmet that comes in an XL? Or a company that would custom size? Thank you!!
Stacy, you need to measure your son’s head. Only then will you know what you’re looking for. Different brands have different sizing – not all XL helmets are the same size.
Don’t ask for an XL helmet. Ask for a helmet to fit a 63cm head.
You might try a Lazer Sphere MIPS helmet – but it only goes up to 64cm.
Good luck.