Best Triathlon Helmet Reviews 2018 [With Expert Opinion In Video]

Triathlons are tough, no doubt about it and only athletes in the peak of their condition with the best triathlon helmet can perform well in them. In triathlons, seconds count. The ability to shave even 2 seconds off your best time can mean the difference between a win and second place.

One of the most vital pieces of equipment to help you in this endeavor also offers you protection from injury, and that is the cycling triathlon helmet. These racing helmets are designed to be durable, protective, comfortable, easy to adjust while riding, aerodynamic and cool.

Indeed, It takes quite a bit of sound engineering to create the absolute best time trial helmet, and we’ve rounded up the best for you, right here.

Top 3 Best Triathlon Helmet Compared

Before you dive into the comprehensive triathlon helmet reviews, I would like to give you a brief comparison among the best 3. That way, you can make the quick decision time. I will give you the in-depth reviews on each of them.

6 Triathlon Helmet Reviews 2018

As promised before, it’s time for the most comprehensive reviews on each of the above 3 recommended helmets. In addition to that, you will have 3 more reviews on other popular triathlon helmets. All the information is based on users’ feedback.

Giro Air Attack Helmet Review

giro air attack bike helmet
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The Giro Air Attack Cycling Helmet with its rigid, in-mold polycarbonate shell and EPS liner, is the perfect, all-around cycling helmet for both casual riders, as well as more serious competitive racers.

The Air Attack is a solidly built road helmet gives you a nice, comfortable and easily adjustable fit by way of its own Roc Loc Air System, and according to Giro, is designed to fit around 98 percent of cyclists.

For comfort, Giro gives you 3 different height adjustments from which to choose.

Sometimes during a ride, you may feel that you need to fix the fit, so Giro has made it simple with its one-handed dial system, simply ‘click’ your way to the perfect fit.

The good fit is also ensured by the inner cradle which rests over the top of your head and forehead, which also assists in air flow.

As an added perk, the Giro’s own removable, antibacterial padding uses its very own X-Static Technology weaves silver threads through the fabric, to keep you padded, and comfortable, while preventing bacteria from heat and sweat causing an unpleasant odor.

With it’s Wind Tunnel Ventilation system, giving you 6 internal channeling vents, consistent airflow is guaranteed. Fresh air is drawn in as you ride, and circulates around your head ensuring you won’t overheat in the hot sun.

As for weight, this protective, durable helmet weighs in at a very light 240 for the medium size. Sizes include Medium (55 to 59) and Large, (59 to 63). We like the Giro Air Attack cycling helmet and consider it an excellent all-purpose cycling helmet.

The Air Attack provides you with an aerodynamic, quiet ride which minimizes air resistance, which is designed to take seconds off of your best time.

Standout Features and Pros of the Giro Air Attack

  • In-mold polycarbonate shell for durability and solid protection.
  • Lightweight at 240 grams.
  • Excellent Roc Loc retention system.
  • Wind Tunnel Technology supplies you with 6 internal channeling vents.
  • X-Static Padding for added comfort and antibacterial properties


  • Some users may find the fit a bit tight on the back of the head, and a little too high.  

Giro Air Attack Shield Helmet Review

giro air attack shield helmet
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If you’re looking for a stylish, well-ventilated cycling helmet for those days you hit the track, or simply engage in a little, light afternoon racing, then the Giro Air Attack Helmet can work wonders for your style.

This aerodynamic, efficient helmet has been manufactured with an in-mold polycarbonate shell, which is then FUSED to the expanded polystyrene layer, to keep it lightweight.

The Wind Tunnel Ventilation System by Gira uses 6 vents to ensure that your head will be continuously circulated by fresh, cool air, which is perfect for competitive cycling, or for those who live in warm, humid climates.

If you want to attach a face shield to the Giro Air Attack, then you’re in luck. The removable Ziess visor can be attached using magnetic clips to your helmet, and can easily be flipped when needed.

The Carl Ziess visor protects your eyes from dust, dirt, debris, and bugs as you speed down the straight-away.

To help give you the perfect fit, the interior shell tightens by way of a retention dial with three different heights, as well as having a Roc Loc Air fit adjustment. Comfort is assured by way of the interior paddings X-Static Technology.

With X-Static Technology, real silver fibers are interwoven into the rest of the fabric and act as an antimicrobial.

Overall, this is a comfortable helmet that will give you a nice, snug fit during your ride, add to that your head will always remain cool due to the venting system. It’s built to be lightweight, competitive and give you a solid aerodynamic ride.

Designed for sport, made for comfort, this helmet is perfect cyclers engaged in competitive sports such as the triathlon, iron man, mountain biking, as well as the casual cyclist.

Now, video explanation about this helmet to make more sense of it.

Standout Features and Pros of the Giro Air Attack Racing Helmet

  • Wind Tunnel Ventilation System keeps your head cool as you ride.
  • X-Static Technology for comfort and anti-microbial effect.
  • Ziess Visor can be fitted using magnets.
  • Comfortable and aerodynamic design.
  • Lightweight, durable construction


  • Some may find the fit not snug enough for their head shape

Giro Aerohead MIPS Helmet

giro aerohead helmet
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If you are searching for one of the best aero helmets on the market, look no further. The Giro Aerohead MIPS is a lightweight, durable cycling helmet with a sleek, stunning and functional aerodynamic design, and is the chosen model for many professional cyclists such as Marcin Blaloblocki and Rohan Dennis.

Known as one of the most popular bike helmets on the market, the Giro Aerohead MIPS comes with a Carl Zeiss Optic Eye Shield to keep bits of road dust, small insects, and debris from interfering with your vision during your ride.

This shield is a flip-up which connects to your helmet using a magnetic lens anchor attachment.

The lightweight of this model is due to the in-mold, protective and durable polycarbonate shell. Ride free from worry, with the Giro’s MIPS system.

Head protection is provided by Giro’s own MIPS, or Multi-Directional Impact Protection System, which is proven to protect you against injury in case you fall, crash or have a collision with another rider.

When cycling out in the heat, it is vitally important that you keep cool, and with the four Wind Tunnel vents, that is just what you get. Air freely circulates around your head as you ride, as the vents suck in the cool air while moving the old, stale air out.

This model also has over-brow ventilation which also contributes to keeping your head nice and cool.

This helmet is designed for durability, comfort, and protection. Oliver Bridgewood, the writer at Cycling Weekly, gave this helmet an independent testing using 3 different riders and the results were: Aero Watts at 40kph: 200W (taped); Average system CdA: 0.236; Watt saving over baseline: 17Watts.

So, if you’re searching for that helmet which will give you the utmost performance, and has been proven at races the like of Tour de France, then we suggest you look into the Aerohead MIPS.

Now, watch the video review from an expert about this helmet.

Standout Features and Pros of the Giro Aerohead MIPS Cycling Helmet

  • Lightweight, durable polycarbonate shell.
  • MIPS, Multi-Directional Impact Protection System protects against head injuries.
  • Wind Tunnel Ventilation System technology ensures cool air moves in, and stale is pushed out.
  • Convenient flip-up Zeiss visor to protect your eyes from bugs, road dust, and debris.
  • Low drag, fast and can take much needed seconds off of your time.


There are not many cons that come with this helmet, but there are users who wish it came with a wider color selection.

Louis Garneau P-06 Helmet

louis garneau helmet
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The CPSC-ASTM-CEN certified Louis Garneau P-06 Helmet is tough, comfortable and easy to wear, and perfect for time trials, triathlons, and general weekend cycling.

This cycle helmet is durable, manufactured with bonded construction and specially designed for those of you who want the top of the line performance found in higher end helmets.

The sleek, aerodynamic design’s pointed end tail ensures that air will flow evenly, helping you slice through any wind.

If you are worried about sweat dripping down your forehead during a long race, don’t be, as the Louis Garneau P-06 Helmet is designed with Moisture Evacuation Channels, which ensure you get ample air circulation.

The 5 vent airflow is also increased by what is called the ‘Golf Ball Effect’, which refers the textured front of the helmet which guarantees laminar air flow as well as assists in making the helmet more wind resistant.

As far as support, the P-06 has got you covered via its Spiderlock Pro II Helmet Stabilizing System. This system is composed of a ventilated, polymer neck support for easy one-handed adjusting during your ride, just by adjusting the indented, anti-slip dial to several positions.

It’s Steplock Divider refers to a Cam locking system which assists you when adjusting your strap. The Sealed Airdry Padding has an ergonomic design to ensure the ultimate comfort during a long ride.

Totally machine washable, the Sealed Airdry Padding is easy to launder as well, simply remove it from your helmet and toss it into your machine. This helmet is lightweight at only 11.8 ounces.

Standout Features and Pros of the Louis Barneau P-06 Helmet

  • Light at only 11.8 ounces.
  • Top of the helmet is designed with indents, or ‘dimples’ similar to a golf ball to aid in minimizing air resistance.
  • Aerodynamic, sleek, streamlined design with a pointed tail helps to move air to the back.
  • Spiderlock Pro II Helmet Stabilizing System ensures comfort and ease of adjustment while riding.
  • Steplock Divider system uses a Cam locking system for a tight strap.
  • Sealed Airdry Padding ensures comfort during a long ride, ergonomically designed and machine washable


  • Some riders may find the Steplock Divider system does not keep their helmet steady enough

Giro Advantage 2 Road Bike Helmet

giro advantage helmet
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The CPSC certified Giro Advantage 2 Road Bike Helmet with flexible earflaps is simply built for speed, having been in its first Tour de France in 2006.

The Advantage ‘2’ is the result of taking the much favored Giro Advantage, and updating it with features to increase your speed by minimizing air resistance, constantly testing the design in wind tunnels to create a high-quality racing helmet.

Famous for being a low drag helmet, if you are heavily invested in serious cyclings, such as time trials, triathlons or the Iron Man, this racer helmet is designed to shave seconds off of your finish time with it’s aerodynamic, lightweight design.

The Advantage 2 has been proven in competitions to be a cut above the rest, been tested in open competition and used to cycling’s top riders.

The Giro Advantage 2 has been worn by Championship Cyclers such as Dav Zabriskie, Levi Leipheimer, and Alberto Contador. Looking at the Advantage 2, you’ll notice that there are openings which initiate at the front of the helmet and surround the top.

This venting is referred to as ‘Wind Tunnel Technology’ due to its extensive testing in wind tunnels. This Wind Tunnel Technology gives the cyclist 5 Wind Tunnel vents which rush fresh air in, and push the hot air out.

As for durability and protection, this aerodynamically designed helmet is manufactured with an in-mold design which buttresses up the helmet in between the 5 vent openings, which means you get tough, a protective helmet that also provides good air flow.

As for fit, well the Advantage 2 uses the easy to adjust Roc Loc 5 retention system, for easy, one-handed adjustment during a race. The Roc Loc 5 handles the vertical positioning as well as fit tension and is 40 percent lighter than the previous Roc Loc 4 retention system.

To ensure the perfect fit, the Advantage 2 comes in 3 sizes with the in-mold construction making certain that the helmet will remain snug and fit on your head.

Standout Features and Pros of the Giro Advantage 2 Cycling Helmet

  • CPSC Certified.
  • Proven to be a competitive helmet and worn by the top, professional cyclists.
  • Wind Tunnel Technology ensures that your head will be well ventilated via the 5 well-positioned vents.
  • In-mold construction for a sturdy, durable and fast protective helmet, which molds to your head giving you a secure fit.
  • The Roc Loc 5 retention system makes a one-handed fit adjustment during your ride fast and easy.


  • The paint used around the ear flaps may rub off over time   

GRAY Triathlon/Time Trial TT Aero Helmet

gray triathlon time trial helmet
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The CPSC certified, Aerodrome Trial Time cycling helmet with chin strap protector by Gray weighs a light 12.2 ounces. Don’t let the light weight fool you, this is a superb, competitive helmet for triathlons, races, time trials, as well as casual ‘weekend warrior’ cycling.

The sleek, streamlined and aerodynamic design of this aerodrome helmet, could mean seconds off of your time trial, giving you that added edge against your top competitor.

DuraShell is one of the toughest materials in manufacturing and used in a variety of applications where only the best, toughest and most protective material will do.

So it’s good to know that the Gray Aero Helmet is constructed with an in-mold DuraShell design, which means you’ll get intense durability and protection against injury should you have a collision.

Time trials can be tough, so to ensure you stay cool during warm rides, the Gray Aero Helmet has an adjustable internal channeling system which uses 4 vents to move fresh air in and not so fresh, out, making certain that cool air is consistently flowing under the helmet.

Not only is the Gray light at only 12.2 ounces, but then it is fabulous when it comes to minimizing air resistance, having a low 3.260 drag coefficient of 0.2465, and 3.306 at 25 mph.

The Sure Fit Dial Retention System means that this is a one-size-fits-all helmet that will give all riders a secure and snug fit while riding.

For added comfort, this helmet comes with uncrackable, flexible ear-side panels, which mean an easy transition during triathlons.

This adjustable one-size-fits-all aerodrome helmet measures 16 x 9 x 8 inches and weighs just 12.2 ounces. Professional stats include Drag: 3.306, Drag at 25 mph is 3.260, and overall drag coefficient is 0.2465.

Standout Features and Pros of the Gray Time Trial Aero Triathlon Helmet

  • One-size-fits-all Sure Fit design means a secure fit for riders of all sizes.
  • Comfortable padding for long rides.
  • 4 vents which channel airflow to keep your head cool.
  • The drag coefficient of 0.2465.
  • CPSC approved


  • Overall, a fabulous helmet, but it is extremely limited style wise and only comes in 2 colors.
  • Check the fit, it may not fit as snug as you’d like
Best Aero Helmet Buying Guide

Finding the best aero helmet for you shouldn’t be a headache. Since the first order of business is for a helmet to provide a protective barrier between your head and any object it may come in contact with should a crash occur, all helmets are manufactured to pass safety standards, or they don’t reach the market.

Knowing that the choice for the best aero helmet will depend on your personal preferences. For instance, do you need a high-end helmet for professional competition or a cheap aero helmet for casual biking?

Aerodynamic Design

If you’re hoping to whittle a few seconds off of your time, then, of course, you’ll be looking for the fastest design. It’s always good to consult with a professional for the best design for you, based on the position which you race.

For instance, do you hunker way down, head first, or not so much? Your racing position can play a huge part in the style of helmet to use when it comes to slicing through the wind.

It is also a good idea to look for a helmet that has been wind tunnel tested. Also, the more vents a helmet has can reduce the aerodynamic effect, if so, some riders simply tape them over during competitions.


To find the best aero helmet for you, getting the fit is all important. In general, you’ll be wanting a helmet that is snug and not tight. A helmet that puts stress on your heads’ pressure points is definitely not a good purchase.

These helmets come with inside padding to help absorb sweat and give you a comfortable ride, so adjust the padding itself to improve the fit.

When considering fit, think of your hair length, do you ride with a ponytail, or will you be doing riding in a cold climate where you’ll require a winter hat under the helmet.

Retention System

This refers to how the helmet stays in place while you ride. Try to find a retention system that is easy to adjust. If you want to enhance your fit, look for a helmet that has a retention system which can be adjusted vertically.


If you are a weekend warrior, casual biker, then this should not be of much concern. However, if you are considering being competitive, the lightest helmet can be a huge plus in your favor on the track.

The lighter helmets are usually higher-end as it takes much design and quality materials to produce a durable, protective, lightweight helmet.

Final Words Regarding the Best Time Trial Helmet

As you can see, looking for the best aero helmet for you can be just a little confusing, so hopefully, we’ve helped to sort things out a bit.

Whether you are searching for the best cheap aero helmet for the weekends, or something built a bit more for racing, we are confident our review has assisted you in your quest.

If you remember the importance of purchasing a good, brand name, the aerodynamic design, the weight and type of retention system your helmet has, you’ll be well on your way to making your mark in the world of professional triathlon cycling.

Also, consider reading climbing helmet review. I have written it a few days back.

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