The Ultimate Guide To 5 Best Full Face Mountain Bike Helmets 2024!

When it comes to downhill and aggressive trail riding, having the right protection for your head is non-negotiable. Full-face mountain bike helmets are designed to offer the utmost safety, enveloping the entire head and face to shield against impacts that are common in high-speed mountain biking scenarios.

These helmets are not just about protection, though; they are also about comfort, weight, ventilation, and fit. In this comprehensive article, we'll dive into the world of the best full-face mountain bike helmets, exploring key features that set the top models apart. 

We'll consider aspects such as material innovations for reduced weight, advanced ventilation systems to keep you cool under exertion, and ergonomic designs that enhance comfort without compromising on safety.

Whether you're a seasoned downhill racer or a trail enthusiast looking to upgrade your gear, this guide will help you make an informed decision to find the helmet that best suits your riding style and safety needs. Let’s gear up and take a closer look at what the best full-face mountain bike helmets have to offer.

Best Mountain Bike Helmet Full Face - Top 3 Comparison

1. Troy Lee Designs Adult Downhill Mountain Bike Full Face D3 Fiberlite Helmet

Troy Lee Designs Adult Downhill Mountain Bike Full Face D3 Fiberlite Helmet

The Troy Lee Designs D3 Fiberlite Helmet Anarchy model is a standout choice for riders who need reliable full-face protection without breaking the bank. Built for downhill, mountain biking, and BMX, this helmet brings Troy Lee Designs' renowned quality and aesthetic into a more affordable price range, thanks to the innovative use of fiberlite materials.

First off, the D3 Fiberlite sports an aggressive styling and graphic design that's synonymous with the Troy Lee Designs brand. The Anarchy model features a bold, eye-catching graphic that looks both modern and rugged, ensuring riders stand out both in performance and style on the trails or at the park.

In terms of safety, the Fiberlite shell offers robust protection. The helmet incorporates advanced aerospace fiberglass and a high-flow ventilation system with 20 intake and exhaust ports to keep your head cool. This cooling system effectively reduces the discomfort typically associated with full-face helmets, especially on longer rides or during warmer days.

Comfort is further enhanced by the plush interior lining, which is not only comfortable but also removable and washable. This feature is excellent for maintaining hygiene and freshness, particularly after sweaty or muddy sessions. The D3 Fiberlite also features a contoured 3D cheekpad system that fits securely and adds an extra layer of comfort.

The helmet includes a purpose-built visor which provides significant shading and is adjustable to accommodate goggles. Speaking of goggles, the helmet’s eye port is generously sized to fit all popular goggles brands comfortably, which is a significant plus for riders who need dependable eye protection.


  • Affordable Price: More budget-friendly than other models in the Troy Lee lineup without sacrificing quality.
  • High-Quality Materials: Uses aerospace-grade fiberglass for robust protection.
  • Excellent Ventilation: Features 20 air vents for superior airflow.
  • Stylish Design: Bold graphics and a professional finish.
  • Comfort Features: Includes washable liners and 3D contoured cheekpads.


  • Weight: Slightly heavier than carbon composite models, which might be noticeable during very long rides.
  • Size Options: Limited size variations may not fit all head shapes perfectly.

Overall, the Troy Lee Designs D3 Fiberlite Helmet Anarchy offers substantial protection, excellent ventilation, and striking looks at a value-oriented price point, making it a solid choice for serious riders on a budget.

2. Smith Mainline Cycling Helmet For Men & Women

Smith Mainline Cycling Helmet For Men & Women

The Smith Mainline Cycling Helmet is meticulously engineered for the rigors of downhill and aggressive trail riding. This adult mountain bike helmet stands out with its inclusion of Koroyd coverage and MIPS (Multi-directional Impact Protection System) technology, making it one of the safest options on the market.

Starting with its core safety features, the Smith Mainline uses Koroyd material in critical impact zones, offering superior energy absorption compared to traditional foam. This innovative material, combined with the MIPS system, significantly enhances protection by reducing rotational forces on the brain during angled impacts. These technologies work together to provide a level of security that's difficult to match, giving riders peace of mind to tackle challenging terrains.

From a comfort perspective, the Smith Mainline excels. It features an optimized ventilation system designed to draw air through the helmet, facilitating superior cooling even on hot and demanding rides. The adjustable visor is not only functional in managing sunlight and debris but also accommodates goggles comfortably, making it highly versatile for varying riding conditions.

The helmet's fit is another high point, thanks to the VaporFit adjustable fit system. This allows for precise adjustments, ensuring the helmet remains securely in place while being comfortable enough for long durations. The addition of a lightweight, single-layer webbing adds to the comfort, reducing bulk and eliminating pressure points.


  • Advanced Safety Features: Equipped with Koroyd coverage and MIPS technology for enhanced impact protection.
  • Superior Ventilation: Excellent air flow keeps the head cool even during intense rides.
  • Adjustable Visor: Easily accommodates goggles and can be adjusted to shield eyes from sun and debris.
  • Customizable Fit: VaporFit system allows for detailed fit adjustments.


  • Price Point: Higher than some competitors, which might be a barrier for some budgets.
  • Weight: Slightly heavier due to the robust construction and safety materials.

In summary, the Smith Mainline Cycling Helmet is an exceptional choice for downhill and trail enthusiasts seeking top-tier safety and comfort. Its advanced protective features, alongside superior ventilation and adjustability, make it a worthwhile investment for serious riders prioritizing helmet performance and safety.

3. BELL Super 3R MIPS Adult Mountain Bike Helmet

BELL Super 3R MIPS Adult Mountain Bike Helmet

The BELL Super 3R MIPS Adult Mountain Bike Helmet is designed with versatility and performance in mind, particularly for trail riders who require both full-face protection and the convenience of a convertible helmet. This model incorporates MIPS (Multi-directional Impact Protection System) technology, enhancing safety by reducing rotational forces on the brain during oblique impacts.

One of the standout features of the Super 3R is its adaptability. The helmet’s chin bar is removable, allowing riders to switch between a full-face and open-face configuration depending on the ride's demands or the day's weather. This dual-mode functionality makes it an excellent choice for enduro riders or those who tackle varied terrains and need flexibility in their gear.

In terms of construction, the Super 3R is built with an in-mold polycarbonate shell that bonds directly to the EPS foam liner, creating a sturdy yet lightweight structure. The integration of MIPS adds an essential layer of protection, crucial for rough trails and high-speed descents.

Comfort is another critical aspect of this helmet. It features an Overbrow Ventilation system, which consists of intake ports on the brow of the helmet to draw in cool air and push it through the air-channel matrix, ensuring a head-cooling stream over the scalp. The Float Fit system is easy to adjust and ensures a secure fit while being comfortable for long rides.


  • Convertible Design: Easily transitions between full-face and open-face, offering flexibility for different types of mountain biking.
  • MIPS Technology: Provides added protection against rotational impact injuries.
  • Lightweight Construction: In-mold polycarbonate shell with an EPS liner for a lightweight feel.
  • Excellent Ventilation: Overbrow Ventilation system helps keep the rider cool during strenuous rides.
  • Adjustable Fit: Float Fit system ensures a secure and comfortable fit.


  • Bulkiness: Even with its lightweight design, the added features make it bulkier than standard MTB helmets.
  • Chin Bar Security: While removable, the chin bar might feel less secure than those on dedicated full-face helmets.

Overall, the BELL Super 3R MIPS Adult Mountain Bike Helmet is an excellent choice for mountain bikers who value flexibility, comfort, and enhanced safety in their riding gear. It performs well across a range of conditions and riding styles, making it a versatile addition to any rider’s gear collection.

4. Mongoose Title Full Face Team Issue Bike Helmet

Mongoose Title Full Face Team Issue Bike Helmet

The Mongoose Title Full Face Team Issue Bike Helmet is a robust choice for riders seeking comprehensive protection without compromising on comfort and style. Designed to accommodate a wide range of head circumferences from 47 to 62 cm, this helmet is available in both youth and adult sizes, making it a versatile option for families or teams.

A standout feature of this helmet is its full-face design, which provides extensive coverage and superior protection. This is particularly important for BMX riders and those engaging in more extreme cycling disciplines where the risk of falls and impacts is increased. The Mongoose Title Team Issue is built to withstand these rigors, thanks to its durable construction and well-designed impact absorption system.

The helmet’s ventilation system is also worth noting. It incorporates multiple vents that ensure a continuous flow of air, helping to keep the wearer cool and comfortable even during intense activity. This is coupled with a lightweight design, which ensures that the helmet can be worn comfortably for extended periods without straining the neck or shoulders.

The fit is another critical aspect, and the Mongoose Title excels here as well. It features an adjustable dial at the back, allowing users to easily customize the fit to their specific head shape, ensuring the helmet remains snug and secure without being overly tight.


  • Extensive Coverage: Full-face design offers superior protection.
  • Adjustable Fit: Equipped with a dial adjustment system for a personalized fit.
  • Ventilation: Ample venting promotes airflow to keep the rider cool.
  • Versatile Sizing: Available in sizes suitable for both youth and adults.
  • Lightweight Design: Comfortable for long-term wear, minimizing fatigue.


  • Visibility: The full-face design might restrict peripheral vision more than open-face helmets.
  • Heat Retention: Despite ventilation, the full coverage can lead to more heat retention compared to other designs.

Overall, the Mongoose Title Full Face Team Issue Bike Helmet is an excellent investment for serious cyclists who prioritize safety and comfort. Its protective features, coupled with a lightweight and adjustable design, make it a top choice for both competitive and recreational riders. Whether hitting the trails or the track, this helmet delivers performance and protection in a sleek package.

5. BELL Super DH MIPS Adult Mountain Bike Helmet

BELL Super DH MIPS Adult Mountain Bike Helmet

The BELL Super DH MIPS Adult Mountain Bike Helmet is designed for the hardcore enthusiast who demands both versatility and exceptional protection. This helmet goes a step beyond traditional models by incorporating the MIPS Spherical technology, an advanced version of the popular Multi-directional Impact Protection System that enhances rotational impact absorption without compromising comfort or performance.

One of the most significant features of the Super DH MIPS is its convertible design. The helmet can easily transition from a full-face configuration for downhill riding to a more open, lighter setup for less intense trail rides. This versatility is achieved through a removable chin bar that integrates seamlessly with the main helmet structure.

Built with an in-mold polycarbonate shell fused to an EPS liner, the Super DH not only offers robust structural integrity but also keeps weight to a minimum. This construction approach ensures that the helmet is both lightweight and capable of dissipating impacts effectively, which is crucial for reducing fatigue during long rides.

Ventilation is another area where this helmet shines. It features over 19 vents, including four brow ports, to provide excellent airflow, helping to keep the rider cool even during exertive sessions. BELL has also included their Float Fit DH system with a Fidlock buckle, offering easy adjustability and a secure fit that remains comfortable throughout the ride.


  • Convertible Design: Easily switches between full-face and open-face, providing flexibility for different types of mountain biking.
  • Advanced Safety Features: Equipped with MIPS Spherical technology for superior protection against rotational impacts.
  • Lightweight Construction: Polycarbonate shell with EPS liner keeps the helmet light and durable.
  • Superior Ventilation: Extensive venting system helps maintain a cool head under exertive conditions.
  • Comfortable Fit: Adjustable Float Fit DH system ensures a snug and comfortable fit.


  • Price Point: Higher price range, which might not be suitable for all budgets.
  • Complexity in Conversion: Some users might find the process of converting the helmet between modes a bit cumbersome.

Overall, the BELL Super DH MIPS Adult Mountain Bike Helmet is an excellent choice for riders looking for top-notch safety and versatility. It’s suitable for those who frequently switch between aggressive downhill rides and more casual trail biking, offering superb protection and comfort in both scenarios.

What To Consider Before Buying Full Face Mountain Bike Helmet

When selecting a full-face mountain bike helmet, several key considerations can help ensure you choose a helmet that not only protects you but also enhances your riding experience. Here's a comprehensive guide on what to consider before purchasing a full-face mountain bike helmet:

1. Safety Certifications

The primary purpose of a full-face helmet is to provide maximum protection, so it's essential to check for safety certifications. Look for helmets that meet standards such as ASTM F1952, which is specific to downhill mountain biking helmets, or CPSC 1203, suitable for bicycle helmets in general. These certifications ensure the helmet has undergone rigorous testing for impacts and crashes.

2. Material and Construction

The material and construction of the helmet affect both its weight and safety. Most full-face helmets are made from materials like fiberglass composite, carbon fiber, or polycarbonate. Carbon fiber is typically lighter and can absorb significant impacts but tends to be more expensive. The construction technology, such as in-mold or hard shell, also plays a crucial role in how shocks are absorbed and how the helmet's weight is distributed.

3. Weight

Full-face helmets are generally heavier than their open-face counterparts due to the added materials for protection. However, a helmet that is too heavy can cause neck fatigue on long rides. Look for a helmet that balances protection and weight, ensuring it is comfortable for prolonged use, especially if you plan on lengthy sessions or enduro rides.

4. Ventilation

Good ventilation is crucial in a full-face helmet to manage heat and ensure comfort during rides. Look for designs that feature adequate venting—this includes both intake and exhaust vents to facilitate air circulation around the head. More advanced helmets may also feature ventilation channels that help direct airflow efficiently.

5. Visibility and Eye Protection

Visibility is vital when wearing a full-face helmet. Ensure the helmet offers a wide field of view to easily see trails and potential obstacles. Additionally, consider how well it integrates with your goggles if you use them. Some helmets come with adjustable visors to accommodate goggles and improve eye protection against sunlight, dirt, and debris.

6. Fit and Comfort

An ill-fitting helmet can compromise safety and comfort. A proper fit means the helmet is snug but not uncomfortably tight, with no pressure points or loose areas. Most helmets come with varying thicknesses of padding to fine-tune the fit. Additionally, features like adjustable cheek pads, a precision-adjustable fit system, and a comfortable chin strap are important for securing the helmet and enhancing comfort.

7. Ease of Use

Consider how easy it is to put on and take off the helmet, especially if you need to do it frequently during rides. Features like magnetic buckles or quick-release straps can be very convenient. Also, check how easy it is to clean the helmet, as sweat and dirt are inevitable. Removable and washable liners are a great feature that can keep your helmet fresh and ready for the next ride.

8. Additional Features

Some helmets come with extra features like MIPS (Multi-directional Impact Protection System), which adds an additional layer of protection against rotational forces in a crash. Another feature to consider is a built-in action camera mount if you enjoy recording your rides.

9. Aesthetics and Design

Lastly, while not as critical as the other factors, the aesthetics and design of the helmet can also be important. A helmet that you like the look of will make you more likely to wear it consistently. Plus, it should reflect your style and possibly match with your other gear.


Choosing the right full-face mountain bike helmet involves balancing several factors, from safety and comfort to weight and ventilation. By considering all these aspects, you can find a helmet that not only provides excellent protection but also enhances your mountain biking experience. Remember, investing in a good helmet is investing in your safety and enjoyment on the trails.

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