14 Best Bicycle Helmets For Large Heads in 2021


Finding a quality bicycle helmet when you have a head that is larger than everyone else’s can often be a challenge and extremely frustrating. In fact, just researching for cycling helmets for large heads was a challenge in itself. My objective was to find helmets at the larger end of the spectrum, like 68 to 70 cm (26.7 – 27.5 inches), however every time that I thought I had found a solid lead it turned out to be incorrect, possibly to the point of deceptive advertising.

Man holding big head

Image by Klaus Hausmann from Pixabay

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Fortunately for cyclists looking for helmets for larger heads, some of the biggest names in bicycle helmets, like Bell, Bontrager, Giro and Smith Optics manufacture larger sized helmets.

Different manufacturers use different terminology to name their sizes, so we are basing our sizing on centimeters and inches. If you are looking for an XL bike helmet, XXL bike helmet, XXXL bike helmet, or similar sizing, then we probably have something suitable listed below.

To make your search a little easier, I have ordered the list by size, biggest first. Within each size group, there are several different helmets sorted alphabetically.

Before you start looking for a helmet, please be sure about your head size. See our article ‘How To Know Your Helmet Size’ for more information.
A properly fitted helmet is the most important aspect of helmet safety.

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JUMP TO :
Bicycle Helmets Larger Than 67 cm (26.4 Inches)
Bicycle Helmets Up To 66 cm (26 inches)
+++Bontrager Starvos WaveCel Cycling Helmet
Bicycle Helmets Up To 65 cm (25.6 inches)
+++Abus Urban-I 3.0 Bike Helmet
+++Giro Radix Bike Helmet
+++Giro Register MIPS Bike Helmet
+++Giro Cormick MIPS Helmet
+++Giro Montaro MIPS Helmet
+++Giro Syntax MIPS Bike Helmet
+++Smith Signal MIPS Adult Bike Helmet
+++TeamObsidian Airflow bike helmet
Bicycle Helmets Up To 64 cm (25.2 inches)
+++iOutdoor Road Bike Helmet
+++Kask Mojito Helmet
+++Kask Mojito X Peak Helmet

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Mountain Bike Helmet for a BIG HEAD?

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Bicycle Helmets Larger Than 67 cm (26.4 Inches)

As previously mentioned, I did try to find something in the range of 68 to 70 cm worthy of addition to this list but couldn’t find anything that I would personally recommend. What I suggest you do in order to have a proper fitting certified helmet, would be to contact a couple of larger helmet manufacturers and hound them into making something in your size.

Bontrager already makes 66 cm helmets, Bell and Giro make 65cm helmets, so it can’t be totally out of the realm for them to make a larger size helmet. Heck, even Smith Optics makes 67cm ski helmets.

If enough people contact them, they might eventually get the message that there is a sizable market for larger helmets.

You can contact Bell, Bontrager, Giro and Smith Optics on the links below:
Bell
Bontrager
Giro
Smith Optics

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Bicycle Helmets Up To 66 cm (26 inches)

Bontrager Starvos WaveCel Cycling Helmet – X-Large (60 – 66 cm / 23.6 – 26 inch)

The Bontrager Starvos WaveCel helmet offers heightened protection with its polycarbonate shell, and WaveCel technology, consistently earning it a 5-Star rating in the Virginia Tech bicycle helmet ratings. WaveCel lines the interior of the helmet and is designed to absorb some of the impact during an accident to protect the riders head.

The Headmaster Fit System which adjusts both height and circumference with one hand keeps this stylish helmet both secure and comfortable at the same time.

The Bontrager Starvos WaveCel Helmet is available from Trekbikes.

It comes with very comfortable and washable moisture-wicking internal padding, and great air-flow management through the large vents.

The Bontrager Crash Replacement Guarantee is available for this helmet too, providing free helmet replacement if involved in a crash within the first year of ownership.

Overall, a great looking helmet that will fit many large sized heads at an unbelievable price, with all the protection you will ever need.

Main features summary:

  • Polycarbonate shell
  • WaveCel head protection technology
  • Large vents
  • Headmaster Fit System
  • Washable padding
  • Crash Replacement Guarantee
  • Weight 310 grams

What do the Reviews have to say about the Bontrager Starvos WaveCel cycling helmet?

One reviewer wrote that the Bontrager Starvos Wavecel is so light and quiet that he had to keep checking that it was still on his head! Other reviews stated that the helmet is good quality, sturdy and comfortable. The side straps are soft yet very strong with a perfect fit.

Very little in the way of negative reviews, but one buyer claimed that the fit adjuster was broken on arrival so he went with a different brand helmet instead. And one other reviewer who was generally happy with the helmet said that the straps could be a little longer.

Link to our BONTRAGER helmet size chart.
Link to our article How to Know Your Helmet Size.

Bontrager Crash Replacement Guarantee, Courtesy Trek Bicycle on Youtube.

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Bicycle Helmets Up To 65 cm (25.6 inches)

Abus Urban-I 3.0 Bike Helmet – X-Large (61-65 cm / 24-25.6 inch)

One of the most popular helmets in Germany and throughout Europe, the Abus Urban-I 3.0 represents great value for such a stylish bicycle helmet. The fusion in-mold polycarbonate shell bonds the outer EPS shell for lightweight, yet durable, head protection.

The Abus Urban-I 3.0 Bike Helmet is available from Amazon.

With 12 front and side air-vents and 5 outlets at the rear, you have perfect ventilation for supreme comfort. For added safety, this Hi-Viz helmet is lined with external reflectors, as well as an LED light built-in to the rear of the helmet.

The Zoom Ace Urban fit system’s anti-slip adjustment dial along with the Full-ring connection allows for a customized height and width fit for everyone. The padded chin strap has a fidlock magnetized buckle to keep the helmet secured to your head.

The Medium size Abus Urban-I 3.0 weighs in at a very reasonable 300 grams, has anti-insect mesh built-in, and the padding is completely removable and washable to keep it free of odours. Plus, for those with longer hair, it is ponytail compatible.

Main features summary:

  • Polycarbonate shell
  • 17 large vents
  • Zoom Ace Urban Fit System
  • Washable padding
  • Reflective visibility strips
  • CPSC and CE-EN1078 certified
  • Weight 300 grams (M size)
  • German engineering

What do the Reviews have to say about the Abus Urban-I 3.0 bike helmet?

More than 80% of reviews are overwhelmingly favorable, commenting on the general quality of the helmet. The light weight, ventilation, and comfort are among the many positive comments. One negative reviewer didn’t like the magnetic Fidlock buckle.

Link to our article How to Know Your Helmet Size.

Courtesy ABUS International on Youtube.

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Giro Radix MIPS Helmet – X-Large (62.5-65 cm / 24.7-25.6 inch)

The Giro Radix MIPS helmet is a great looking mountain bike helmet with all the features expected of a Giro bike helmet. Constructed of an in-mold polycarbonate shell which is fused permanenetly to the EPS foam liner making it both lightweight and durable.

The Giro Radix MIPS Helmet is available on Amazon.

This aerodynamic helmet has exceptional cooling capacity with its 25 wind tunnel vents and Cool-Fit anti-microbial padding. Sleek and stylish with the adjustable Roc Loc® 5.5 Fit system to custom-tune the fit even more. Includes MIPS brain protection system and a P.O.V visor which offers 15 degrees adjustment.

Main features summary:

  • Polycarbonate shell
  • 25 wind tunnel vents
  • Roc Loc® 5.5 Fit System
  • Cool-Fit padding
  • P.O.V. Visor
  • CPSC certified
  • Weight 315 grams

What do the Reviews have to say about the Giro Radix bike helmet?

Most reviews were positive, particularly regarding the fit, comfort, and lightness of weight. There was one reviewer who complained about sweat management though he may have a problem with sweating as many other reviewers complimented the venting.

UPDATE 02 APRIL 2021: In Canada, the Giro Radix MIPS Helmet is only available in Large size.
In the US and UK, the X-Large is still available, however the UK version does not include MIPS.

Link to our GIRO helmet size chart.
Link to our article How to Know Your Helmet Size.

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Giro Register MIPS Bike Helmet – X-Large (58-65 cm / 22.8-25.6 inch)

An in-mold polycarbonate shell fused with an EPS foam liner creates a lighter helmet with better ventilation from its 22 air-vents. As stated, this helmet has integrated the MIPS brain protection system for added safety.

The Giro Register MIPS bike helmet is available on Amazon.

These Universal Fit helmets are designed to fit virtually anyone first time. Add in the Roc Loc® Sport System to easily customize the fit and Quick Dry padding for added comfort. This helmet also features a removable Quick Link Visor, as well as reflective visibility strips to ensure you can be seen at night.

Main features summary:

  • Polycarbonate shell
  • MIPS Protection
  • 22 air-vents
  • Roc Loc® Sport System
  • Quick Dry padding
  • Reflective visibility strips
  • Removable Quick Link Visor
  • CPSC certified
  • Weight 324 grams

What do the Reviews have to say about the Giro Register MIPS bike helmet?

The reviews suggest that large-headed people are very happy with the fit. That’s good to hear. One buyer said that he had a problem with the straps coming loose easily, but also stated that they could be readjusted just as easily.

UPDATE 02 APRIL 2021: In the United States the X-Large is still available.
In the United Kingdom and Canada, the X-Large Giro Register MIPS Helmet is currently unavailable. However, the Universal Adult size (up to 61 cm) is available.

Link to our GIRO helmet size chart.
Link to our article How to Know Your Helmet Size.

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Giro Cormick MIPS Helmet – X-Large (58-65 cm / 22.8-25.6 inch)

Excellent value for a stylish and very popular helmet with MIPS! Giro has always been a name associated with quality helmets, and that quality shows with the Giro Cormick MIPS helmet. Featuring an in-mold polycarbonate shell with an EPS foam liner, and 18 vents for head cooling air-flow, not to mention the built-in MIPS Brain Protection System.

The Giro Cormick MIPS helmet is available online from BackCountry.

In addition, there’s a neat cloth visor to shield your eyes from the sun and rain. The visor can be easily removed for washing and is easily replaced by connecting the velcro.

Sizing adjustments can be made with the Roc Loc dial-in fit system. The interior padding makes for a very comfortable experience allowing you to enjoy your ride in comfort.

Main features summary:

  • Polycarbonate shell
  • 18 large vents
  • MIPS protection
  • Roc Loc dial-in fit system
  • Removable visor
  • CPSC and CE EN certified

What do the Reviews have to say about the Giro Cormick MIPS bike helmet?

A very popular helmet with hundreds of reviews. The vast majority of reviews being positive and praising the helmets comfort, ventilation, and general overall fit. Several comments also about the ease of use of the Roc Loc fit system. There are also several stories of riders who were involved in accidents that state that the helmet saved their life. Always nice to read these accounts.

Negative reviews amounted to less than 2% of reviews. One reviewer had a problem with the visor coming apart from the velcro, and another commented that the helmet messed up his/her hair.

Link to our GIRO helmet size chart.
Link to our article How to Know Your Helmet Size.

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Giro Montaro MIPS Helmet – X-Large (61-65 cm / 24-25.6 inch)

The Giro Montaro incorporates MIPS technology with an in-mold polycarbonate shell fused with an EPS foam liner, as well as an in-built roll cage for added strength and protection.

The Giro Montaro MIPS bike helmet is available on Amazon.

The Roc Loc® 5 Air fit system together with internal channeling keeps your head cool, while you can easily adjust the tilt and tension with one hand. Strap grippers on the back of the helmet give full goggle integration.

On the inside, the hydrophilic, anti-microbial padding absorbs sweat from your brow while you concentrate on cycling. There’s also the POV Plus™ visor allowing easy one-handed visor adjustment at any time. And, as an added feature, it comes with a breakaway camera mount so you can record your adventures.

Main features summary:

  • Polycarbonate shell
  • 16 vents with internal channeling
  • MIPS protection
  • Roc Loc® 5 Air fit system
  • Anti-microbial padding
  • POV Plus™ visor
  • Breakaway camera mount
  • CPSC certified
  • Weight 391 grams

What do the Reviews have to say about the Giro Montaro MIPS bike helmet?

Reviews are a bit like opinions – they should be taken with a pinch of salt. I just read one review which said that the Giro Montaro could be a little more comfortable, but then the very next review said it was very comfortable. Scrolling down further another reviewer wrote positively about the ventilation. This was followed by another review which said the ventilation could be improved.
Overall, the reviews were positive for the Montaro.

UPDATE 02 APRIL 2021: In the United States, United Kingdom, and Canada, the X-Large is still available.

Link to our GIRO helmet size chart.
Link to our article How to Know Your Helmet Size.

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Accessories Advert

Giro Syntax MIPS Bike Helmet – X-Large (61-65 cm / 24-25.6 inch)

A tough polycarbonate outer shell fused to an inner EPS foam liner using the in-mold process all the while incorporating a staggering 25 wind tunnel air-vents creates an awesome head-hugging designed helmet.

Of course, it has the Roc Loc® 5 Air fit system for added comfort, as well as the MIPS Brain Protection System for added safety, not to mention the CoolFit anti-microbial padding. The only thing it’s missing is you!

Main features summary:

  • Polycarbonate shell
  • 25 wind-tunnel vents
  • MIPS protection
  • Roc Loc® 5 Air fit system
  • CoolFit anti-microbial padding
  • CPSC certified
  • Weight 346 grams

What do the Reviews have to say about the Giro Syntax MIPS bike helmet?

The fit and comfort rated highly in the reviews, as did the value for money. Very few negative reviews worth mentioning, except one which suggested that the Roc Loc system could be more adjustable.

UPDATE 02 APRIL 2021: In the United States and the United Kingdom, the X-Large Giro Montaro MIPS Helmet is still available. In Canada, the X-Large is currently unavailable. However, the Large size (up to 63 cm) is available.

Link to our GIRO helmet size chart.
Link to our article How to Know Your Helmet Size.

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Smith Signal MIPS Adult Bike Helmet – X-Large (61 – 65cm / 24 – 25.6 inch)

Every cyclist with a head size between 63cm to 65cm should be wearing one of these. Three very good reasons why you should buy this helmet, 1) It’s so reasonably priced that you won’t believe the price; 2) It’s a good looking helmet, just take a look at the image below; 3) Even at this incredible price, it has built-in MIPS brain protection system!

The Smith Signal MIPS Adult Bike Helmet is available on Amazon.

Hang on! Let’s make that four reasons. 4) It’s made by Smith Optics so we can be assured of the best quality. Do I need to say more.

Constructed of an in-mold polycarbonate shell with an EPS liner fused together as one. On the inside it has something that Smith calls ‘performance comfort lining’ for your comfort. In addition, your comfort will be enhanced by the AirEvac ventilation with 21 air vents. The retention system, VaporFit adjustable fit system, will add to the level of comfort as the VaporFit system provides a snug fit all around your head.

Main features summary:

What do the Reviews have to say about the Smith Signal MIPS Adult Bike Helmet?

Positives: Great quality for the price; looks good, feels good, great fit.
On the negative side, some reviewers found that the bottom of the EPS liner being exposed looked a little tacky, but did state that it wasn’t a deal-breaker and were more than happy with their new Smith Signal helmet.

UPDATE 02 APRIL 2021:

The X-Large Smith Signal MIPS Adult Bike Helmet is currently available in the United States. This helmet is very popular and runs out of stock quickly, but when that happens you may be able to pre-order.
In the United Kingdom and Canada, the X-Large is currently not available, however, the Large (up to 63 cm) is available.

Link to our SMITH helmet size chart.
Link to our article How to Know Your Helmet Size.

In the event that the X-Large Smith Signal is unavailable and you really need a helmet NOW, you could take a look at the Smith Convoy MIPS mountain bike helmet. It is the same size, and same price. It has a visor at the front to keep the sun out of your eyes!

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TeamObsidian Airflow Bike Helmet – L/XL (61-65 cm / 24-25.6 inch)

TeamObsidian have outdone themselves here with a super-strong reinforced helmet, yet lightweight at the same time. With a removable front visor this helmet suits mountain bikers, commuters as well as hobby cyclists.

The TeamObsidian Airflow Bike Helmet is available from Amazon.

To create the superior safety of the Airflow helmet, TeamObsidian has utilized in-mold technology whilst adding an integrated ABS skeleton between the outer shell and the internal EPS layer. By doing it like this they have been able to integrate 22 huge air vents for outstanding air-flow and cooling.

The L/XL size weighs in at 0.7 lbs (315 grams), and is available in two colors, white or black. The dial fit system at the rear of the helmet can be adjusted in seconds, and can also be adjusted horizontally for a snugger, secure fit. There’s even room for a low ponytail below the rear dial.

It has a cushioned chin strap for added comfort, and the inner pads are removable and washable. The TeamObsidian Airflow bike helmet also comes with verifiable CPSC certification, and a 2 year manufacturer’s warranty.

Main features summary:

  • In-mold reinforced ABS shell
  • EPS liner
  • Patented Adjustment System
  • 22 Huge Air-vents
  • Ponytail Friendly
  • Cushioned Chin Strap
  • Washable padding
  • CPSC Certified
  • 2 Year Manufacturer’s warranty

What do the Reviews have to say about the TeamObsidian Airflow bike helmet?

Well over 90% positive reviews with some people reporting their experience when crashing while wearing this helmet. Fantastic helmet with a very comfortable strap system. Lightweight with awesome airflow. Fits like a glove. One reviewer complained that the strap broke, but TeamsObsidian reached out to him and offered a free replacement. Nice to see a manufacturer that stands by its product.

UPDATE 02 APRIL 2021: TeamObsidian Airflow bike helmet XL size is available in the United States.
Currently, in Canada it is only available in the M/L size (57 – 61cm).
This helmet is not available in the United Kingdom.

Link to our article How to Know Your Helmet Size.
Link to our TEAMOBSIDIAN helmet size chart.

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Bicycle Helmets Up To 64 cm (25.2 inches)

iOutdoor Road Bike Helmet – One Size Fits All (56-64 cm / 22-25.2 inch)

The iOutdoor Road Bike Helmet, which comes in 7 different colors, has a polycarbonate outer shell with an EPS foam internal liner which is padded with a comfortable, moisture-wicking, washable sponge padding.

The iOutdoor Road Bike Helmet is available on Amazon.

18 large air-vents allow cool air in while flushing warm air out giving you a cool, dry and comfortable feel during riding. The helmet comes with a duel fit system consisting of an adjustable rear wheel along with adjustable straps to fit most head sizes. In addition, the sun visor is detachable.

Main features summary:

  • Polycarbonate Shell
  • EPS internal lining
  • Washable Padding
  • Duel Fit Adjustable System
  • 18 Air-Vents
  • Removable visor
  • Meets CE-EN 1078 and CPSC standard
  • Weight 195 grams

What do the Reviews have to say about the iOutdoor road bike helmet?

Not many reviews available, but all except one are positive. No guarantee that the reviews are genuine though. Good value for money, good fit, comfortable, etc., the usual stuff.
On the negative side though, one buyer complained that the visor was flimsy and broke in the first two days of use.

UPDATE 02 APRIL 2021: The iOutdoor Road Bike Helmet is currently not available in Canada.
In the United States and the United Kingdom it is still available.

Link to our iOUTDOOR helmet size chart.
Link to our article How to Know Your Helmet Size.

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Kask Mojito Helmet – X-Large (63-64 cm / 24.8-25.2 inch)

The Kask Mojito uses the innovative in-molding system to join the outer polycarbonate shell to the inner EPS shell providing better energy absorption. The Up ‘n’ Down adjustment system uses a unique double pivot design for a more precise and comfortable fit.

The Kask Mojito Helmet is available on Amazon.

The inner padding is treated with an antibacterial and antimicrobial Sanitized® process. An eco-leather chinstrap with a chin pad provides additional comfort and helps avoid chafing of the skin. For added safety, it has high visibility stickers so you can be seen in poor lighting conditions. Sleek and distinctive, made in Italy.

Main features summary:

  • Polycarbonate shell
  • 26 air intakes
  • Up ‘n’ Down adjustment system
  • Antibacterial and Antimicrobial padding
  • Eco-leather chinstrap
  • Hi-Viz reflective stickers
  • CPSC, CE & AS/NZS certified
  • Weight 220 grams (M size)

What do the Reviews have to say about the Kask Mojito bike helmet?

Best helmet on the market for large heads, says one reviewer. And now to summarize other reviewers: super lightweight you can forget you are wearing it; quality finish and good value for money; airflow is great and keeps your head cool; very comfortable.
It was hard to find negative reviews, but a couple of people said that it was a bit pricey.

Link to our KASK helmet size chart.
Link to our article How to Know Your Helmet Size.

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A Quick Note About Fitting A Kask Helmet

Apparently, some people who have bought Kask helmets have been having some difficulties with getting the fit right.
As always, you need to ensure you have measured your head correctly and chosen the right size for your head size.
The two Kask helmets we have featured here use the Up N Down retention system. Some Kask helmets use the Octo fit adjustment system, which is similar to the Up N Down retention system. These retention systems use straps that can be adjusted both horizontally and vertically using a rubberized dial or by squeezing the adjuster at the rear of the helmet. Using either of these adjustable fit systems you should be able to ensure a tight, secure fit for maximum protection.
Please see the video below for how the fitting system works.

https://www.youtube.com/watch?v=Zhhr8sDvzAw
Kask General Fitting, courtesy of kask cycling on Youtube

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Kask Mojito X Peak Helmet – X-Large (63-64 cm / 24.8-25.2 inch)

The Kask Mojito X Peak Helmet is exactly the same as the Mojito X above, except that it comes with a new removable peak (visor) to protect you from the elements.

The Kask Mojito X Peak is available on Amazon.

The Kask Mojito X Peak uses the innovative in-molding system to join the outer polycarbonate shell to the inner EPS shell providing better energy absorption. The Up ‘n’ Down adjustment system uses a unique double pivot design for a more precise and comfortable fit.

The inner padding is treated with an antibacterial and antimicrobial Sanitized® process. An eco-leather chinstrap with a chin pad provides additional comfort and helps avoid chafing of the skin. For added safety, it has high visibility stickers so you can be seen in poor lighting conditions. Sleek and distinctive, made in Italy. And, of course, a removable visor.

Main features summary:

  • Polycarbonate shell
  • 26 Air Intakes
  • Up ‘n’ Down adjustment system
  • Antibacterial and Antimicrobial padding
  • Eco-leather chinstrap
  • Removable Visor/Peak
  • Hi-Viz reflective stickers
  • CPSC, CE & AS/NZS certified
  • Weight 220 grams (M size)

What do the Reviews have to say about the Kask Mojito X Peak bike helmet?

Only a couple of reviews available for the Kask Mojito X Peak, so in a nutshell; Great fit, great ventilation, very comfortable to wear, very lightweight. All sounds good.

UPDATE 02 APRIL 2021: The X-Large Kask Mojito X Peak Helmet is currently unavailable. However, in the United States and Canada, it may be available in the Small size.

Link to our KASK helmet size chart.
Link to our article How to Know Your Helmet Size.

Casco Kask Mojito X, courtesy of Retto. com on Youtube.

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Large Helmets for Other Activities . . .