5 Best Mountain Bike Helmets In 2021 (Updated MTB Helmet)

Cycling is a great activity that one can do for fun or economic purposes. It will relax your body, helping you to burn calories that you have accumulated in your body.

If you do not like doing other activities like football, volleyball, basketball, or going to the GYM, then you need an activity that will keep your body fit, and that will be riding a bike.

Fitness helps in preventing diseases such as high blood pressure. While keeping fit, you should be safe at all times. Riding a mountain bike can result in injuries on your head when you have an accident. It is, therefore, a wise decision that you take a high-quality helmet with you when going for your riding.

Note that not all available helmets in the market are durable. Some of them will just break when you have an accident thus exposing your head to more danger.

Things to Consider when Buying the Best Mountain Bike Helmets

Before deciding on which one to pick, it is good to consider some factors which I have listed below. The following factors should be put into consideration when buying a helmet.


The main purpose of getting a helmet is for protection. For that reason, you should get a protector that meets all the standards. This certification should be put in place, and if the helmet you are planning to purchase does not have it, it will be wise to go for another one.

Certifications vary depending on countries. For example, in the US, helmets must be CPSC-approved; in Australia it is AS/NZS; in Europe, it is the CE sticker you are looking for.


Ventilation is very important in a helmet. When cycling for a long distance, your head will obviously sweat a lot.

If the helmet you have does not have enough ventilation on it, you may be tempted to remove it when you sweat a lot exposing yourself to danger. To avoid all these, always ensure the one you are purchasing has more ventilation.


A good helmet is the one that fits comfortably on your head. Always ensure you put the size of your head into consideration when purchasing a helmet.

Loose helmets on your head may fall off when you are riding exposing you to more danger. Know your head size by taking measurements using a tape measure just above your ears.


A good helmet is the one which you can adjust accordingly depending on the size of your head and how tight or loose you want it. Always check for adjustment capabilities of helmets when buying one.

Best Mountain Bike Helmets

Recommended Best Mountain Bike Helmets

The following are the best Helmets, which I have recommended for your mountain bike use. I did my research very well and came up with the list. Enjoy reading.

1. Schwinn Thrasher Adult Micro Bicycle black/gray Helmet Adult

Piscifun Sword Fly Fishing Reel with CNC-machined

I will begin with this exciting helmet which comes in black and gray color.

It is such a great consideration you should put on your list of preferences for adults.


The helmet fits a head size of 22 7/8 to 24. If your head size is in this range, then this is perfect for you. The helmet has an attractive appearance as it comes in different colors of gray and black.


The helmet has 21 integrated flow vents to keep the rider with the free circulation of air. This avoids sweating of the head. Also, it has moisture-wicking pads to aid in keeping your head cool and dry.


The helmet has a visor which protects the eye while riding by increasing shade. Your eyes are ever protected with this helmet.


While using this helmet, you can adjust to fit you perfectly using the provided easy-to-adjust webbings. This will ensure a comfortable fit.


The helmet weighs only 0.9 pounds. This is very light on your head making it suitable for use when cycling for long distances. These features make this helmet a great choice for anyone looking for the best mountain bike for an adult.

2. Giro Revel Helmet – Women’s

Another helmet in my selection of the best mountain bike helmets is here.

It is amazing as it is unisex adults with exciting features as discussed below.


The helmet covers all your head without leaving a single part. It thus offers maximum protection to your head in case of any accidents.

Snap Fit Visor

The visor is incorporated in the helmet and reinforced with anchor points. This provides eye protection as well as additional shade to your eye, protecting it from excessive sunlight.

Reflective Rear Decal

It has a reflective surface which ensures your safety on the road by alerting other users of your presence especially at night or when the visibility is poor during the day.

Shock Absorber

It is designed with an in-mold polycarbonate shell with EPS liner on the inside ensuring that all the shock is absorbed when you have an accident.

Acu Dial Fit System

The helmet comes with a fit system which ensures that your helmet is tightly fitted to your head while riding. This prevents the possibility of the helmet falling away when you are cycling in a windy place.

3. Troy Lee Designs A-1 Helmet

Inbike 5mm Gel Pad Cycling Gloves

Here is another mountain bike helmet that is specifically recommended for all mountains cross country users.

It fits well in anyone’s head, so head size is not an issue here.

Plastic Casing

It is made of plastic to give it a lightweight when you put it on. The plastic is that durable, you do not need to worry about it getting breakage when it falls.

Shock Resistant

It is lined with shell polycarbonate material with EPS from giving it a shock resistant feature. Your safety is guaranteed with this type of helmet.


The helmet has 16 vents which provide enough air circulation to the head when cycling. The vents help avoid excessive sweating when riding for long distance.

Cam-lock Stabilizer

The fit adjustment is made in such a way that it locks when you tighten it using a cam-lock stabilizer. This enhances more fitting on the head, and less worry about the helmet falling when blown by strong winds when cycling in a windy environment.

Recommended Use

What makes it different from other helmets discussed above is the usability. This helmet is recommended for use by all mountains cross country riders making it outstanding.

4. Giro Hex Mountain Bike Helmet

Piscifun Sword Fly Fishing Reel with CNC-machined

If you love riding for long hours like 4-5 hours in varying environmental conditions, then this is the best helmet to get.

It has excellent features for long distance cyclists.


Performance is not compromised in the design of this helmet. Apart from just covering your head when cycling, you will as if it is giving you extra power to keep cycling for a long distance without getting tired.

Fit System

Just like the above-discussed helmets, this one also possesses a fit system. The only exceptional mechanism about it is that it has a Roc Loc 5 fit system for maximum fitting onto your head.


You will incur no shock in your head with this helmet. This is so because it is fully wrapped with in-mold polycarbonate shell with EPS liner


Ventilation has been maximized. It has a seventeen wind tunnel vents which have internal channeling ventilation for maximum ventilation of the head area.

Adjustable Visor

It comes with a P.O.V. adjustable visor which has a 15° vertical adjustment. Unlike the other helmets discussed above, this inclination is a great improvement in its design.

5. Fox Head Flux Helmet

Piscifun Sword Fly Fishing Reel with CNC-machined

Lastly, I want to present to you Fox Head Flux Helmet, which is also among the best mountain bike helmets I came across while making my selection.

It is robust and durable and has the following features.

Large vents

Ventilation is greatly enhanced here. The helmet has 20 large vents for maximum air circulation and temperature control.

Deep rear profile

The helmet has a deep rear profile for additional coverage. Your head will, therefore, be fully covered when you get this helmet for your cycling activities.

Fit System

It fits perfectly on any head size. This is because it comes with a Detox retention system which dials to perfect fit your head comfortably.


The helmet meets all the certifications I had mentioned earlier under the factors to consider when buying the best mountain bike helmet, which is CPSC, CE: en 1078, AS/NZS 2073.

All mountain coverage

The helmet is suited for all mountain coverage. It is thus ideal for use in any cycling activity you can think of.

Verdict (Best Mountain Bike Helmets)

As I conclude this review, I hope that you have gained enough knowledge to enable you to get at least one of the best mountain bike helmets I have discussed above.

It is my assumption that you are now more knowledgeable than before. The factors to consider when buying a helmet are very important and should not be taken for granted.

You must have noticed that the best helmets I selected met all the considerations discussed above. Finally, I would advise you to take your time and revisit these products before deciding which one to purchase.

I wish you well in your search for the best mountain bike helmet.


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