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10 Best Triathlon Bike Helmets Tested & Reviewed

last updated Nov 28, 2018
Through the decades there has been a push to make helmets have as much protection as possible for all bike enthusiasts. The MIPS (Multi-directional Impact Protection System) has come a long way in innovation by using the slip plane concept. It has a double layer protective barrier and was designed to prevent brain injury and concussions from impact if involved in an accident.

Trimming bike times is essential to triathletes. The aerodynamics that is implemented in the best triathlon bike helmets have come a long way in science and technology–which really allows you to shred that time.
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Products Evaluated
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By Giselle Killebrew:

Our new top three triathlon helmets are the Giro Air Attack helmet, the Louis Garneau P-09 helmet, and the Kask Protone helmet. These 3 come highly rated and highly recommend among many users. Make sure to take a look at the rest of the page to learn more about how we compiled our list of best triathlon helmets.

Sorting Options
Protection Comfort Weight Breathability By Default
Rank
PictureProduct
Name
Rating
Shops
1
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
96.5
Protection
96%
Comfort
98%
Weight
97%
Breathability
95%
Price Comparison Last Updated (09.12.18)
$79.96
2
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
95
Protection
95%
Comfort
94%
Weight
96%
Breathability
95%
Price Comparison Last Updated (09.12.18)
$219.95
$219.95
Best Deal
3
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
94.3
Protection
96%
Comfort
94%
Weight
93%
Breathability
94%
Price Comparison Last Updated (09.12.18)
$174.95
Best Deal
$249.95
4
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
93
Protection
93%
Comfort
94%
Weight
92%
Breathability
93%
Price Comparison Last Updated (09.12.18)
$185.06
Best Deal
$237.86
5
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
92.8
Protection
95%
Comfort
93%
Weight
91%
Breathability
92%
Price Comparison Last Updated (09.12.18)
6
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
90.3
Protection
88%
Comfort
92%
Weight
91%
Breathability
90%
Price Comparison Last Updated (09.12.18)
$192.45
Best Deal
$274.95
7
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
89.3
Protection
91%
Comfort
89%
Weight
90%
Breathability
87%
Price Comparison Last Updated (09.12.18)
$399.99
8
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
85
Protection
90%
Comfort
84%
Weight
84%
Breathability
82%
Price Comparison Last Updated (09.12.18)
$119.99
9
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
83.8
Protection
84%
Comfort
85%
Weight
82%
Breathability
84%
Price Comparison Last Updated (09.12.18)
$164.95
10
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
83
Protection
84%
Comfort
83%
Weight
85%
Breathability
80%
Price Comparison Last Updated (09.12.18)
$119.99
In Depth Review Top 10
  • Giro Air Attack
  • Louis Garneau P-09
  • Giro Aerohead MIPS
  • Kask Protone
  • Rudy Project Wing 57
  • Giro Vanquish
  • Rudy Project Boost 01
  • Gray Synergy TT Aero
  • Giro Advantage 2
  • Gray TT Aerodome
Table of contents
  • Criteria Used for Evaluation
  • Other Factors to Consider
  • Frequently Asked Questions
  • Sources

10 Best Triathlon Bike Helmets

1. Giro Air Attack

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
96.5
Giro Air Attack
Protection
96
Comfort
98
Weight
97
Breathability
95
best offer for today
$79.96
Pros:

Protective foam

Good ventilation

Added visor for enhanced optics

Wind tunnel design

Comfortable and lightweight

Good for long distance races and short bike rides

Cons:

Not ergonomical for some

Visor could be longer

Magnets to hold visors may not sustain extreme headwinds

The Giro Attack Bike Helmet has all the bells and whistle when it comes to safety, performance, and airflow. It is lightweight and the aerodynamics is superb and compact. The design was adopted by their first air attack design and has the same aesthetic features with a few added bonuses. The extreme aerodynamic design has a Roc Loc Air system that slices through the air for added speed. There is a removable eye protector and an easily adjustable chin strap. The Giro Attack is an all around bargain helmet that can be used for Triathlons or everyday bike rides.

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Comfort

The helmet that you choose should be safe, but comfort is also a must to go along with that, especially when it comes to doing long-distance runs. It is lightweight with a mesh interlining and maneuvers easily for a quick attachment in order to keep with time.

Breathability

This helmet has an excellent aero and drag profile and has a surprising amount of air ventilation to both keep your head cool and give you the headwind needed for speed.

Cost and Value

Moderately priced and each price depends on the color and style of the helmet you are buying. That said, you will definitely have a high-quality helmet that is lightweight and durable.

2. Louis Garneau P-09

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
95
Louis Garneau P-09
Protection
95
Comfort
94
Weight
96
Breathability
95
best offer for today
more shops
$219.95
$219.95
Best deal
Pros:

Lightweight

4 Vent air circulation

Retract ear for a quick transition

Head and neck comfort

Highly Aerodynamic

Pro lock adjustment straps

Removable visor

Cons:

Difficult visor attachment

The sleek and comfortable design provided by the Lois Garneau P-09 TT Helmet is what makes this helmet stand out the most. This high quality and expertly crafted helmet comes in four different colors and has become known for its high-performance features. The texturized golf ball technology incorporated at the front of the helmet creates the optimum speed for riders to pick up extra wind speed and improves airflow.

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Weight

Weighing in at 350 grams, this helmet is lightweight, comfortable, and efficient. It is also known as the easiest helmet to put on and take off, thanks to its retractable ear feature.

Stability

The Lous Garneau p-09 also comes equipped with their patented stabilizing Spiderlock Pro TT system. This stabilizing system provides you with optimal stabilization and neck support during your rides.

Cost and Value

This helmet is considered pricey, but well worth the cost. It also comes equipped with a removable lens and a ventilation system that is guaranteed to keep you cool and maintain continuous airflow while riding.

3. Giro Aerohead MIPS

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
94.3
Giro Aerohead MIPS
Protection
96
Comfort
94
Weight
93
Breathability
94
best offer for today
more shops
$249.95
$174.95
Best deal
Pros:

Best all-around helmet on the market

Polycarbonate shell

Lightweight

Increased ventilation system

Wide long-range visors

Flip-up visor for simple transition

Great selection of styles

Cons:

Lack of color options

The Aerohead MIPS Bike Helmet is one of the leading bike helmets on the market created by GIRO. It offers the leading protections from accidents and injuries using MIPS technology. It has a higher wind speed and ventilation for optimum performance. It is the leading helmet used by numerous triathletes as well as time trialists.

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Breathability

Sitting over a smidge over 2 pounds, this polycarbonate made helmet is one of the best ventilated and safest helmets on the market. Sizing is a snap with Giro’s Super Fit Engineering that ensures the proper fit for all.

Visor Design

The visor on this helmet is one of the best on the market, offering long range visuals for long distance cyclists and give you those unobstructed views for safe riding.

Cost and Value

This helmet comes at an above average pricing for serious buyers. The helmet keeps your head cool in the most competitive endurance runs. It has a polycarbonate shell, an impeccable wraparound eye shield and offers a strong magnetic anchor attachment for and lens flip up for an easy transition flow from swim to bike.

4. Kask Protone

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
93
Kask Protone
Protection
93
Comfort
94
Weight
92
Breathability
93
best offer for today
more shops
$237.86
$185.06
Best deal
Pros:

Provides plenty of ventilation

Keeps you cool

Very lightweight

Comfortable

3d Dry Padding

Excellent beginner helmet

Lots of color options

Cons:

The extra ventilation may increase drag

Can get expensive depending on color and design

The Kask Protone helmet comes from a less well-known brand, but it has quickly become a highly recommended helmet. It is more affordable than some others on this list and offers numerous benefits. This helmet is extraordinary lightweight and a great beginner helmet for triathletes just starting out--and looking for an effective and beneficial helmet that won't weigh them down as well.

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Weight

This hybrid helmet is extraordinary lightweight and an excellent intro helmet for triathletes looking to get serious. It is comfortable, spacious, and will keep you cool.

3D Dry Padding

One of the best features this helmet has to offer is the 3D Dry Padding, which prevents bacteria growth. It is removable and washable, so you never have to worry about bacteria growth later in the future.

Cost and Value

This helmet is still a bit pricey but definitely more affordable than others on this list. Price increases based on color options--so it can get expensive if you want a particular color or design in mind.

5. Rudy Project Wing 57

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
92.8
Rudy Project Wing 57
Protection
95
Comfort
93
Weight
91
Breathability
92
best offer for today
Pros:

Removable Tail Cover

Removable Visor

Lightweight

Comfortable

Exceptional Breathability

Cons:

High Price

Difficult to Transition (removal of visor and tail)

The Rudy Project Wing 57 is a new and improved version of the previous Ruby Project Wingspan helmet. Its sleek design, comfort, and breathability is a perfect match for riders looking for a helmet they can use for an extended period.

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Comfort

This road and wind tested helmet was developed with the help of Aero expertise, John Cob. Its Aerodynamic design combined with its flow through air vents provides you with a high performing and comfortable helmet

Breathability

Weighing in at 390 grams (with the visor attached) this helmet is lightweight and perfect for triathlons and races. It's also comes equipped with a removable tail cover and visor, to better suit whichever option you prefer.

Cost and Value

The helmet is pricey but worth its value, so make sure it fits your specific needs. Moreover, you not only have a comfortable bike helmet, but it is also lightweight.

6. Giro Vanquish

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
90.3
Giro Vanquish
Protection
88
Comfort
92
Weight
91
Breathability
90
best offer for today
more shops
$274.95
$192.45
Best deal
Pros:

Comfortable

Lightweight

Magnet vivid eye shield by Zeiss

Wind tunnel ventilation

RocLoc Air MIPS

Sleek Design

Cons:

Inferior ventilation system

The Giro Vanquish is an Aero helmet designed to replace Giro’s Air Attack. Its improved Aerodynamic design and RocLoc Air fit system make this helmet a new and improved version of its predecessor. The Vanquish is a high-performing and comfortable helmet that is sure to help you improve both your time and speed.

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Breathability

Giro specifically wanted to improve both their ventilation and overall aesthetic design with this helmet—and they achieved it. While its’ wind ventilation system is not comparable to helmets like the Synth, or other TT helmets, it is much improved from the Air attack and better than other Aero helmets.

Weight

Weighing in at 305 grams without the shield, and 355 grams with it, this helmet is both lightweight and comfortable. Its’ best feature is the magnetic (and removable) eye shield. This shield uses a Zeiss lens that is perfectly and comfortably positioned for each rider—a rare feature found in visor-style helmets.

Cost and Value

The cost of this helmet is on the high end of the spectrum but it is well worth the investment. Moreover, the Aerodynamic concept used on the Vanquish has been shown to lead to improved speed and time

7. Rudy Project Boost 01

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
89.3
Rudy Project Boost 01
Protection
91
Comfort
89
Weight
90
Breathability
87
best offer for today
$399.99
Pros:

Hybrid helmet

Reduces drag

Increases ventilation

Dry foam padding

X-Static padding

RSR 9 custom fitting

Comes with a removable visor

Cons:

Expensive

The fit may not be right for some people

The Rudy Project Boost 01 triathlon helmets are one of the best available. It is best in performance, hybrid, and comes highly rated among triathletes. This helmet will help you shred your time and help boost your performance in your next race. It is comfortable, durable, and goes above and beyond what a helmet is mean to do.

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Breathability

This helmet uses Dry Foam for its' padding--which wicks away sweat, repels your sweat, keeps you cool, and provides you with a great fit and additional comfort. The padding also incorporates anti-bacterial Static X padding over the Dry foam in order to prevent bacteria from building up.

Design

The Boost helmet will also help you effectively help you shred your race time. It has a balanced design that allows it to reduce drag while also providing optimal ventilation--a difficult feat to accomplish.

Cost and Value

This helmet is definitely more expensive than others, but it will improve your overall performance so it's well worth the investment.

8. Gray Synergy TT Aero

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
85
Gray Synergy TT Aero
Protection
90
Comfort
84
Weight
84
Breathability
82
best offer for today
$119.99
Pros:

Extremely lightweight and slim lined

One size fits all with adjustable dials

Flexible material to prevent cracking

Extra padding included

Comfortable against neck fatigue

Lifetime crash warranty

Low drag

Cons:

Doesn't fit all cyclists

Limited style options

Gray’s Synergy Sport Aerodome Helmet weighs the least out of all of the helmets that were reviewed at a mere 345 grams, but don’t let the weight fool you. This helmet gives you maximum performance for triathlon rides as well as for the Velodrome.

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Weight

This helmet is preferred by most triathletes and is considered one of the most aerodynamic helmets on the market. With a four vent internal channeling and a very light and streamlined design, it virtually shaves off seconds in a race or trial.

Warranty

The lifetime warranty not only covers unexpected crashes, but it also is fully warranted against any damage or defect that was the fault of the manufacturer, its material or workmanship.

Cost and Value

The helmet is considered moderately priced when compared to other brands in the market. However, it has an internal and adjustable channel system for air velocity and a complete Sure Fit adjustable system to ensure a proper fit in one helmet for all sizes. There are flexible ear side panels guaranteed not to crack and speaking of guarantee. Gray offers a lifetime crash warranty.

9. Giro Advantage 2

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
83.8
Giro Advantage 2
Protection
84
Comfort
85
Weight
82
Breathability
84
best offer for today
$164.95
Pros:

Deep channeling for ventilation

RocLoc 5 system

Comfort is good

Great helmet aesthetics

Cons:

Annoying size discrepancies

Colors are limited

If you are a fan of the Tour De France and the Olympics and are looking for a great helmet to give you both the speed and times of these top-notch athletes, look no further. The Giro Advantage 2 Bike Helmet is wind tested, has been worn by more riders and is proven to have the levels of quality, ventilation, and comfort that only a true performer desires.

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Size

The Giro’s patented RocLoc 5 fit system fits keeps the helmet in place and firm. It comes in three sizes and has an inner mold construction that conforms with the different ratios of each head.

Breathability

This helmet has some pretty cool ventilation channels that start in the front of the helmet and surround almost the entire top, giving you the chance to wear it in both the hottest of summers and the coolest temperatures in the fall and winter.

Cost or Value

The helmet is considered to have low to moderate pricing depending on Style. Either way, you will still get its comfort features that increase your whole experience using the brand.

10. Gray TT Aerodome

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
83
Gray TT Aerodome
Protection
84
Comfort
83
Weight
85
Breathability
80
best offer for today
$119.99
Pros:

Lightweight (345 grams)

Extreme internal ventilation channeling

Flexible side panel

In-Mold construction with a durashell

Extra inner padding included

Cons:

Does not have an eye shield attachment

Helmet Tail may cause drag

If you are on the lookout for a clean flexible aerodynamic helmet, look no further. The Gray Triathlon/Time Aerodome Helmet is the one for you. It is one of the lightest helmets weightwise on the market, sizing up at a slender 345 grams. The internal channeling sits at 4 openings and gives you the quickness and speed with a high impact airflow.

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Design

If you're looking for an easy on easy off transition, the Gray TT Aerodome Helmet is a great choice. It has a very simple adjustability system and a chin strap protector that clasps very quickly.

Comfort

The inner core of the helmet and padding was made for both safety and comfort and for those who need the extra coverage there is an easy insert for additional padding.

Cost and Value

I believe that the helmet is relatively inexpensive for what you get since its side panels are highly flexible. Also, the inner molding and lining scream a loud red and has a pretty good firmness to keep the helmet in place. A Lifetime Warranty is also included in crashes and repairs.

Criteria Used for Evaluation

Protection

Safety is one of the most important factors to consider if you cycle. This is why helmet designs are consistently being upgraded–to ensure your safety and comfort during all of your races. You never know when an accident may occur, so it’s important to cover all your head properly. In the United States, the Consumer Product Safety Commission (CPSC) must approve the product, in Europe, the Conformité Européenne (CE) must approve the product, and in Australia, the AN/ NZS must approve the product.

Comfort

The fit is the most important aspect because it ensures your comfort and effectivity of your helmet. Make sure your helmet provides a snug and secure fit and that it isn’t too loose. If the fit isn’t right for you then you will not be covered in the case of an accident and won’t receive the safety the helmets are meant to provide you with. The straps on the helmet should also form a V and when you twist your helmet there should be very little movement. The strap will allow you to adjust your fit and ensure your comfort and safety.

Weight

Typically, the lighter the helmet, is the more money it will cost you. While this may sound ridiculous to some of you, this is because it is extremely difficult to make a helmet that is both lightweight and able to provide you with the safety you need. Lightweight helmets will allow you to gain speed and help you shed precious seconds off your race time.

Breathability

Breathability will increase your comfort levels and is crucial for triathletes. However, more airflow requires less padding, which in turn takes away from the safety the helmet provides you with. This is why many helmets employ special channels on the inside as well as holes on the outer part of the helmet. This allows the helmet to be padded and safe–while also preventing you from sweating excessively.

Expert Interviews & Opinions

Most Important Criteria (According to our experts opinion)
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Helmets Don't Make You Invincible

It's possible that the act of wearing a protective helmet while cycling or participating in any other intense physical activity will endow the wearer with a feeling of safety. This is a good thing; however, it's important to understand that the threat of injury is still present even while wearing a helmet. For this reason, wearers should still exercise the same amount of caution while riding as if they weren't wearing a helmet at all.

Keep it Clean

It goes without saying that properly cleaning and maintaining all running equipment, including your helmet, is necessary for them to function properly. In the case of a triathlon helmet, however, cleaning and polishing this product can have a noticeable impact on your performance. The presence of large scuffs or excessive amounts of dirt and residue can affect your wind resistance and aerodynamic properties while wearing it, so be sure to fix any issues in order to prevent this from occurring.

Other Factors to Consider

Size

Size and style because they can affect many other factors. A helmet that is too small can be too tight and will decrease your blood flow. On the other hand, if the helmet is too large it won’t provide you with the safety and protection you need when you are out on your bike. If your helmet is too big there are caps you can use to make it fit better.
As far as style, you can find options that come in lots of different colors and pattern options. Some are sleeker than others while others are bulkier–so you have a variety of options to choose from.

Advanced Features

Selecting the perfect helmet can be a difficult purchase to make. You have to consider safety and whether a MIPS helmet would be a great fit. Then there is, of course, the aerodynamics to consider in order to shave off as much time as possible on both trials and competitively.
Comfort is just as important. It has to fit your head right without moving too much and the size is imperative because you don’t want a tight fitting helmet. The cooling mechanisms are a must for even the most serious cyclist and you have to be able to put water into the helmet for a fast and rapid cool down. All of the helmets reviewed have a combination of what athletes and triathletes alike are looking for, now it is just a matter of choosing one and getting out there for fun, competition and a healthier lifestyle. Comfortable helmets will prevent neck strain during your runs, will stay put, and prevent you from overheating. The chin strap should provide an adjustable an secure fit but should not be uncomfortable nor should it pinch you. The earflaps on aerodynamics helmets should to stay put and be comfortable enough to wear during long races.

Value

On our list, there are helmets that cost around 100 dollars but there are also products that cost around 300. We don’t want to say that the more expensive the helmet is, the better it is- it’s really untrue. However, the high price of some of the products on our list doesn’t come from nowhere. Extra padding, more ventilation and weight are the factors that decide what will be the price of the product. Triathlon is very demanding and we must be clear- accidents happen.

Even if you’re very careful, the one second may decide. We think that life is priceless and spending even 300 dollars for the helmet is a decision that is reasonable. What’s more, you will be able to use a helmet not only for the triathlon. High-quality helmets can stay with you for years and you can wear even during short ride around the city. There are also many sales and even 20% discount is a lot. Don’t waste your money for cheaply made helmets only because they cost less. Your safety is the priority and stick to this rule.

Frequently Asked Questions

q: What is MIPS Technology?
a:

MIPS Technology stands for Multi-directional Impact Protection System Technology. This method of making helmets allows for more protection because the additional layer it gives your helmet reduces the rotational forces that can happen if you get into an accident. This technology was invented in Sweden and has been tested for almost 2 decades–so you can rest assured that it will keep you safe.

q: What are the 3 different types of bike helmets?
a:

Recreational helmets are the simplest type of helmet. They are used for recreation as the title implies, or by people who commute to work. They are economical and perfect for commuter, road and mountain bikers. They often include visors to shield your eyes from the sun.

Road bike helmets have more advanced aerodynamic features and are much lighter than recreational helmets These helmets allow for a wide view, so you can clearly see if there’s a car coming your way.

Mountain bike helmets are perfect for people who ride downhill and need good ventilation. As the terrain is very demanding and it’s really easy to get hurt, the helmet has a hard shell and the straps are very firm.

q: How do I take care of my helmet?
a:

That’s a good question. The most important thing we can tell you here is to not use harsh chemicals. Instead, use mild soap and water and make sure to keep your helmet in a cool and dry place.

q: When do I need to replace my helmet?
a:

If you get into any type of accident it’s important to replace your helmet–even if it looks okay. However, if you have not been involved in a crash, most manufacturers recommend you replace your helmet every 4-5 years. While they are durable, the older they get the less safe they may be.

Sources

  1. Allen St. John, Consumer Reports, Article,
  2. REI, REI, Article,
  3. Evans Cycles, Evans Cycles, Article,
  4. BikeRadar, BikeRadar, Article,