Best Full Face MTB Helmets 2021 Reviews For Downhill Mountain Biking

As you know, the best full face MTB helmet offers excellent protection to your entire head, chin, and face in speedy downhill accidents. However, this higher level of protection needs some compromises. Mostly a full face MTB helmet feels hotter, heavier, and bulkier than an open face helmet. Thus, to overcome the downsides of full face helmets, our team researched over 26 models on market.

After research and testing, our experts found that some full face MTB helmets are the real deal. Hence, our recommended helmets are very safe, comfortable, lightweight, and ventilated. But top-rated full face helmets are relatively expensive than half-face helmets.

Best Full Face MTB Helmets

If you are a multi skilled rider then you must consider a convertible helmet. You can convert these kinds of helmets from a full face to a half-face helmet.

Caution!

Helmet proper fitting is of utmost importance for your safety and comfort. So, before purchasing any helmet you need to confirm your head circumference.

The most common helmet sizes available in the market are:

  • X-large: > 24.75″
  • Large: 23.25″–24.75″
  • Medium: 21.75″–23.25″
  • Small: 20″–21.75″
  • X-small: < 20″

Our Top Picks
Best Overall

Smith Mainline MIPS full face mtb bike helmet overall best

Smith Mainline MIPS

Lightweight: 8/10
Ventilation: 7/10
Protection Insurance: 10/10
Comfort: 10/10
Goggles Compatibility: 10/10
Material Quality: 10/10
Top Rated

Troy Lee Designs stage full face mountain bike helmet top rated

Troy Lee Designs stage

Lightweight: 9/10
Ventilation: 10/10
Protection Insurance: 9/10
Comfort: 9/10
Goggles Compatibility: 10/10
Material Quality: 10/10

Best Full Face MTB Helmets – Comparison

10 Best Full Face Mountain Bike Helmet Reviews

We prescribed the following full face mountain bike helmets with their genuine information. After the evaluation, we also explained each helmet with its pros and cons. Without any confusion, you can use these helmets for all kinds of aggressive off-road cycling activities like downhill riding, BMX racing, enduro, and trail cycling..

1. Smith Mainline MIPS, Downhill Full Face

Smith Mainline MIPS, Downhill

Our Score
Lightweight: 8/10
Ventilation: 7/10
Protection Insurance: 10/10
Comfort: 10/10
Goggles Compatibility: 10/10
Material Quality: 10/10
Specifications & Features
  • Available color: Matte Sage/Red Rock, Matte Cinder Haze, Matte Black, White/Black, AC | Rocky
  • Available Size: Small, medium, and large
  • Suitable for: BMX racing, Downhill riding, Enduro cycling.
  • Weight: 1.68 pound
  • Shell Material: Polycarbonate
  • EPS Inner foam core
  • Koroyd + MIPS technology to absorb impact
  • X-static antimicrobial inner padding
  • Visor Type: adjustable sun visor
  • 16 helmet vent, 2 brow ports & 5 chin bar vents
  • D-ring chin strap fastener
  • Different thickness pads for fitting adjustment
  • CPSC, CE and EN1078 ASTM F1952-00 DH, and ASTM F2032-06 BMX Certified
Prominent Features

In this lightweight full face MTB helmet cheek pads offer a secure fit without any discomfort. Other than EPS core and MIPS technology, there is a new honeycomb material to absorb impact from all angles at all speeds. This DH MTB helmet can absorb a super high tack energy impact. As compare to the Troy Lee Design Stage our expert marks this helmet more safe and comfortable.

 Its AirEvac ventilation system help to keep goggles fog-free 

This helmet design matches the curvature of the goggles frame. During the evaluation, we observer there is a precise alignment between the helmet and smith’s goggles ventilation system. This alignment keeps fog-causing air out of the goggles. Moreover, there is also a channel in the back to hold the goggles strap perfectly. Our expert rate this helmet perfect for goggles accommodation.

Its AirEvac ventilation system has 21 vent openings that allow good airflow around the entire head, chin, and neck. Its ventilation system good enough to keeps the rider from melting on warmer days. However, as compare to Troy Lee design Stage I found this helmet relatively hotter.

 Interchangeable pads of different thickness to maintain a sung fit 

There is no dial knob in the back of this helmet for fitting adjustment. So, only interchangeable pads of different thickness make a decent grip on the rider’s head.

Thus, there is spare pads kit in accessories that includes 3 pairs of cheek pads, two neck role pads, and two crown liners. All these X-static pads have anti-microbial properties to keep this helmet free from sweat smell. Moreover, these pads are easy to wash.

 Koroyd + MIPS technology to offer superior protection 

Honeycomb-like material calls koroyd, can absorb high impact superior energy while allowing air to pass through easily. Its crumple-zone cylinders crush uniformly to absorb rotational impact.

On the other hand, MIPS sliding plane only helps to reduce rotational forces without absorbing them. So, after blending these two technologies helmet can absorb super high tack energy impact. Our safety expert mark it safest downhill mountain bike helmet.

 Lightweight helmet due to Smith Aerocore technology 

The main theme of smith Aerocore technology is to design a helmet that uses less material but can absorb impact energy efficiently. Now, you can better understand the purpose of the honeycomb webbing layer in this helmet. The use of Koroyd material also means a lightweight helmet with better airflow. As a result, there is an excellent blend of weight, ventilation, and protection in this best MTB helmet.

 Excellent comfort level 

It is the best MTB full face helmet for a great price. Its secure fitting, lightweight, good ventilation, superior protection level, and goggles compatibility make it very pleasant to wear for long riding sessions in summer. You can also use the chin bar vent opening for a drink through the bottle without taking off this helmet.

Pros
  • Lightweight full-face mountain bike helmet
  • This helmet keeps your goggles fog-free
  • Stylish helmet with a secure fit
  • Best helmet for goggle accommodation
  • Helmet with a camera and light mount
  • MIPS + Koroyd equipped helmet
  • Storage beg and spare pads kit in accessories
  • Best downhill mountain bike helmet
  • X-static pads are easy to wash
  • Adjustable sun visor can park goggles underneath
  • Secure ride with confidence
Cons
  • MIPS sliding planes noise, cause irritation
  • D-strap is hard to get on and off with a gloved hand

2. Bell Super DH MIPS Convertible MTB

Best Full Face MTB Helmet

Our Score
Lightweight: 8/10
Ventilation: 8/10
Protection Insurance: 10/10
Comfort: 9/10
Convertibility: 7/10
Visor Adjustability: 10/10
Material Quality: 10/10
Specifications & Features
  • Color of 2021 model: Matte Black. Matte Black Camo, Matte, Matte Blue /Hi-Viz, Matte Sand/Black, Matte Yellow, & Matt Red
  • Available size: Small, medium, and large
  • Suitable for: BMX racing, Downhill riding, Enduro cycling.
  • Weight: 1.87 pound
  • Shell Material: Polycarbonate
  • Dual-density EPS Inner foam core
  • Flex spherical MIPS technology
  • X-static sweat guide pads
  • Adjustable sun visor
  • 19 helmet vent, 2 brow ports & 4 chin bar vents
  • tri glides strap with magnetic FIDLOCK buckle
  • Float fit retention system
  • CPSC, CE and EN1078 ASTM F1952-00 DH, and ASTM F2032-06 BMX Certified
  • Removable chain bar with 3 buckle connection

Prominent Features

This best convertible mtb helmet is certified for downhill riding and BMX racing. As compared to the Giro switchblade, this helmet is lightweight and more ventilated. During this helmet evaluation, I felt improved air circulation around my head even at low speed. But its high-end protective features make this helmet expensive than other BELL convertible helmets. 

 The tool-free removable chin bar 

During the ride, you can easily remove its chin bar through 3 visible clamps. There are two clamps on each side near the ears and one on the backside of the helmet. But as opposed to the Giro switchblade, there is a need to take off this helmet before reinstalling its chin bar.

 Flex-spherical MIPS technology offers comprehensive protection 

In Flex-spherical MIPS technology, the sliding plane is integrated with the 360’ locking system of the helmet. This technology was born after the close collaboration between BELL and MIPS. This helmet’s inner EPS core sits firmly against the head, and the MIPS sliding plane is now hidden between the EPS core and outer shells. Thus, this spherical technology or ball-and-socket design can excellently redirect rotational impact forces.

Moreover, its variable density EPS core can manage energy transfer from different speed impacts.

   Dual flow ventilation keeps your head cool 

There are 2 brow ports and 19 helmet vents that allow cool air to intake and push hot air out. During the trial at 90’F temperature, It feels like air conditioning around my head due to the quick evaporation of sweat.

   Comfortable and secure fit system 

Its float-fit race system featured a rubber over-molded dial knob that is suspended off the back of the head. This dial allows to do the quick adjustment with one hand in micrometer sensitivity. During the evaluation, Its large size sat comfortably on my intermediate oval shape head, and I did not feel any pressure point and undue movement.

   X-static and XT2 padding with a sweat guide channel 

Its X-static padding is designed in such a way that it can channel the absorbed sweat to drips away from the brow. These X-static pads are made of quick-dry material. Moreover, there is silver fiber woven-in material that has anti-microbial properties. These pads remain free from sweat smell. Furthermore, these pads are attached to the helmet interior with double side tape. So, you can easily remove it for washing purposes.

   Chinstrap with magnetic FIDLOCK buckle 

Its chin straps are easy to buckle by magnetic FIDLOCK. This magnetic buckle is easy to manipulate even with one hand. Its mechanical engagement keeps it securely locked.

   Adjustable visor can easily park goggles underneath 

Its adjustable visor can accommodate both goggles and glasses. You can also remove it from the helmet when you want. Moreover, seamless camera mounts require no zip ties or tape for this helmet.

Pros
  • Two great helmets for the price of one
  • Best downhill mountain bike helmet with the removable chin bar
  • Best BMX helmet in full-face mode
  • Come in 9 different graphic design
  • Excellent quality
  • Washable quick-dry padding
  • Comfortable and secure fit
  • Air channel matrix for full head ventilation
  • Removable cheek pads for fitting adjustments
  • Sweat guide pad design
  • Integrated breakaway camera mount
  • Wraparound chin bar offers the best protection
Cons
  • Bit expensive

3. Troy Lee Designs stage Full Face downhill Mountain Bike

Troy Lee Designs stage downhill Mountain Bike

Our Score
Lightweight: 9/10
Ventilation: 10/10
Protection Insurance: 9/10
Comfort: 9/10
Goggles Compatibility: 10/10
Material Quality: 10/10
Specifications & Features
  • Suitable for: Hardcore mountain biker & speedy downhill ride
  • Available color: Black/White, Midnight, Ropo Green/Gold
  • Available size: X-Small/Small, Medium/Large, X-Large/XX-Large
  • Weight: 1.52 pound
  • Shell Material: fiber reinforcement poly lite
  • Dual-density EPS and EPP inner core
  • X-static cheek pads, neck rolls, & liner padding
  • MIPS liner
  • Goggles compatible sun visor
  • Magnetic FIDLOCK buckle
  • 25 vent openings
  • CPSC, EN-1078 and ASTM F1952 DH, ASTM F2032 BMX Certified
  • 3-year manufacturer warranty
Prominent Features

This full face mountain bike helmet offers excellent protection to your entire face without any compromise on comfort level. Like an open face helmet, You can drink water through a bottle without taking off this full face helmet. Moreover, you can also hear other people clearly with this helmet on your head. You can also use a Bluetooth headset with this helmet. This lightweight helmet also has excellent ventilation.

   Interchangeable pads of different thickness offer a comfortable fit 

This helmet comes with a bunch of 10 spare pads of different thicknesses. These interchangeable pads help the rider to do fitting adjustments on his head. These pads include:-

  • Three pairs of jaw pads of thickness 35 mm, 25 mm, and 15 mm.
  • Two neck roll pads of thickness 25 mm, and 15 mm.
  • Two inner liners of thickness 13 mm, and 10 mm

All these X-static pads have anti-microbial properties to keep this helmet free from sweat smell. These pads are also easily washable.

Important Note

There is no dial knob in the back of this helmet for fitting adjustment. So, only thickness pads make a decent grip of this helmet on the head.

   One of the lightest full face MTB helmet on the market 

Its Fiber enrichment shell material is not only lightweight but also gives high penetration resistance. Moreover, its in-mold construction gives a single-piece shell which minimizes the material consumption. Furthermore, its large vent openings also lessen material utilization. Troy Lee did a great job to keep down helmet weight without compromising on rider safety. However, as compared to the IXS trigger, this Troy lee design stage helmet is 63 grams heavier.

   Excellent ventilation through 11 air intake and 14 exhaust ports 

Troy lee worked hard to build this best ventilated full face MTB helmet. There are 25 vent holes to intake and exhaust nearby air. During the trial, I feel like air conditioning around my head due to sweat evaporation at 90′ F. Moreover, the very front of the chin bar also helped in getting fresh air to my lungs. I did not face any issue while drinking through this front chin bar vent. Our testing expert also marks this helmet as the best ventilated full face cycling helmet.

   Large Vent holes near ears help to hear very clearly 

Mostly rider hearing ability becomes limited due to ears coverage by full face helmet pads. But this helmet solved this problem by giving two large vent holes perfectly above the ears. The biggest difference between this helmet and Fox Proframe is the above ears vent holes. Moreover, Troy Lee Design Stage has more openings around the sides than fox Proframe.
During the trial, these 2 vent openings also facilitate me to use a Bluetooth headset. I am completely satisfied with Troy Lee Design Stage comfort level. It doesn’t feel like a full-face helmet.

   Dual-density inner core can absorb high and low-speed impact 

EPP inner layer feels softer to touch. This material is very suitable to absorb low-speed impact. EPP material has a range of unique properties like impact energy absorption, thermal insulation, and chemical resistance. Furthermore, the outer EPS material of the core can absorb high-speed impact force and saves your skull during any serious accident.

   The magnetic buckle is easy to manipulate with one hand 

This helmet chin straps are buckled by magnetic FIDLOCK. It’s easy to open and close this magnetic FIDLOCK buckle with a gloved hand. Its mechanical engagement keeps it securely locked.

   Go-Pro set up on the front crown point 

If you want to make a film about your riding adventure then this helmet is also perfect for this job.

Pros
  • Lightweight helmet
  • Excellent ventilation
  • Bluetooth headset adoptable
  • Stylish helmet with a comfortable fit
  • Easy goggles accommodation
  • MIPS equipped helmet
  • Dual-density inner foam
  • Storage beg and Go-Pro mount in accessories
  • Adjustable sun visor
  • Bunch of 10 x-static spare pads
  • Excellent protection level
  • Best BMX full-face helmet
Cons
  • Expensive helmet
  • Strap with jaw pads can irritate your ears

4. IXS Unisex Trigger Full-Face Mountain Bike helmet

IXS Unisex Trigger Full-Face Mountain Bike helmet

Our Score
Lightweight: 10/10
Ventilation: 10/10
Protection Insurance: 8/10
Comfort: 9/10
Goggles Compatibility: 10/10
Material Quality: 9/10
Specifications & Features
  • Available size: Small/Medium (21.25”-22.83”) & medium/large (22.8”-24.4”)
  • Suitable for: Enduro, Trail & Downhill riding,
  • Weight: 1.38 pound
  • Monohull full circumference Shell
  • EPS Inner foam core
  • Highly breathable mesh padding
  • Adjustable sun visor
  • Gro-Pro mount
  • 10 intake vents & 17 exhaust vents
  • Ergofit-ultra fit system
  • Nylon chin strap with chin pad & FIDLOCK buckle
  • Multi- thickness cheek pads and cloth bag in accessories
  • CPSC, EN1078, and ASTM DH Certified
Prominent Features

This helmet is the world’s lightest full face helmet. IXS design this ultra-lightweight helmet to offer good ventilation and maximum protection. The unique thing in its construction is the addition of an internal X-frame. X-frame addition makes this helmet certified for downhill riding while keeping the weight to an absolute minimum.

   Fully in-molded uni-body construction 

Fully in-mold uni-body construction involves the direct connection of helmet shell with EPS material. It results in increased structural strength by eliminating the weak joint. The advantage of fusing everything is the reduction in weight and volume without any compromise on structural strength. After evaluation, our safety expert appreciated IXS effort in designing this strong body helmet without adding extra material.

   Internal X-frame offer DH level protection 

The internal skeleton that braced in chin-bar adds tremendous strength to the structure of this helmet. IXS call this skeleton an X-frame. X-frame helps this helmet to earn its ASTM DH certification. The high strength to weight ratio of this helmet is due to this X-frame addition.

   Its Egro-fit ultra allow fitting adjustments according to the head size and shape 

Its Ergo fit retention system includes a dial knob that is integrated with horizontally and vertically adjustable cradles. This flexible cradle keeps the helmet secure in position without creating any pressure point on the head. After evaluation, we also found that this helmet sits properly on every head shape, and there is no undue movement.

   Its Muti-thickness cheek pads offer a secure and comfortable fit 

There are 2 sets of cheek pads of thickness 15 mm and 25 mm. If I share my experience with this helmet, I prefer to use cheek pads of 25 mm thickness to get a snug fit. It feels better but a little tight on my face.

   This helmet is designed for ventilation 

Its 27 vent openings keep my head cool during enduro cycling. These vent sizes and shapes are designed to maximize heat exchange in the skull section of the head form. Thus, At 85’F temperature, I did not feel any need to remove this helmet because of thermal discomfort.

   Goggles accommodation 

Its 3 point adjustable visor can easily park goggles underneath. Moreover, there is a rubber pad in the back to hold the goggles strap.

   This Comfortable helmet is suitable for an all-day ride 

During testing, I found that only one-hand operation needs for fitting adjustment, visor positioning, goggle parking, and FIDLOCK buckling or unbuckling. Moreover, I took off and put on this helmet comfortably with one hand. Moreover, Its lightweight, excellent ventilation, and secure fitting make this helmet very comfortable for long riding sessions in summer.

Pros
  • Best lightweight DH helmet
  • Durable shell material
  • Ventilation like open face helmet
  • Moisture-wicking pads
  • Suitable for all head shape
  • Best budget full face mtb helmet
  • Comfortable to wear all day long
  • Precision interlock with micro fitting adjustments
  • Uncompromised protection
  • Goggles compatible adjustable visor
  • Magnetic closure
  • In-mold Unibody technology
Cons
  • Lack of MIPS or other rotational impact absorption technology

5. POC, Coron Air Spin, Downhill Mountain Bike Helmet

 POC, Coron Air Spin, Downhill Mountain Bike Full Face

Our Score
Lightweight: 5/10
Ventilation: 7/10
Protection Insurance: 10/10
Comfort: 9/10
Goggles Compatibility: 10/10
Material Quality: 10/10
Specifications & Features
  • Available size: X Small/Small (20”-21.25”) & medium/large (21.6”-22.83”)
  • Suitable for: Enduro, Trail & Downhill riding,
  • Weight: 2.5 pound
  • Carbon Fiber Shell material
  • Muti-impact EPP inner foam core
  • Removable internal lining pads
  • Adjustable sun visor
  • Gro-Pro mount
  • 14 intake & 6 exhaust vents
  • SPIN technology to absorb impact
  • Nylon chin strap with clip buckle
  • Multi- thickness cheek pads and cloth bag in accessories
  • CPSC, EN1078, and ASTM DH Certified
Prominent Features

This best full face MTB helmet has lots of great safety features along with a comfortable fitting. Moreover, this best downhill mountain bike helmet has excellent build quality. Its inner EPP core can also absorb multiple hits. However, its ventilation is not as good as the best enduro-style helmets. Furthermore, this helmet is not the lightest, but it is one of the safest full face helmets in the entire list of our recommendations.

   Long-lasting EPP inner core material 

This best full face MTB helmet is paired with a multi-impact EPP inner core that offers excellent crash protection. According to the manufacturer, its EPP core remains undamaged after absorbing multiple hits. Furthermore, some users even say that they are using this helmet for more than two years and there is no crack or physical damage after multiple hits. However, according to our safety expert opinion, a rider how experienced a significant impact must replace his helmet.

   Shearing pads inside or SPIN technology 

The purpose of SPIN pads technology is almost similar to MIPS. There is gel-based material that places throughout the SPIN pads. These pads sit directly over the head and act as a sliding plane between the EPP core and the head. SPIN pads can shear in any direction to minimize the effect of an oblique impact. You can also remove these pads for washing purposes.

   Breakaway visor also minimize the impact force 

In a crash, Its breakaway visor pivots backward in almost 180 degrees instead of breaking. This breakaway visor prevents the rider’s head from twisting during the collision. In this way, there is minimum impact transfer to the neck. Several POC owners who met accidents are found this feature very helpful in the prevention of neck injuries.

   Dual flow ventilation 

There are 14 intake vents including five vent ports across the brows. , These 5 vents do an amazing job by adding additional airflow to the forehead. Moreover, these five vents also keep fog-causing air out of the goggles. It is one of the amazing features of this helmet. But over expert does not rate it as a best-ventilated helmet.

However, its ventilation system works well up to 80’F. Anyhow, I recommend you remove its cheek pads to increase ventilation while climbing up.

   Sung fitting pads of this helmet is the key to protection 

In this full face MTB helmet, there is no dial knob for fitting adjustments. So, only sung fitting pads hold this helmet perfectly on the head. The neck-roll of this helmet does not allow the helmet to push away from the neck.

During the trial, this helmet was very tight especially around the jaw/cheek area at first, but after some time it was fine. Its removable cheek pads don’t squish my cheeks into the eyes. Moreover, these cheek pads added extra protection during the downhill ride. But I removed them for increased ventilation during the ride between the Enduro race stages. Furthermore, Its cheek pads with ear chambers design helped in healing and balancing this helmet on my head.

However, a bunch of spare pads along this helmet allow you to do fitting adjustments according to your face shape. There should not any space between the pads and the head. But sung fit does not mean that helmet have any odd pressure points or too tight-fitting.

Pros
  • Safest MTB full-face helmet
  • Comfortable and secure fit
  • Excellent design and build quality for the price
  • Durable EPP core material
  • Easy goggle accommodation
  • Bluetooth headset adoptable
  • Added protection due to breakaway sun visor
  • Removable cheek pads with ear chambers
  • Not make any noise on the trail
  • Smooth and easily cleanable surface
  • Removable silicon inner pads
  • Top-rated full-face helmet
  • Spare pads and cotton bag in accessories
Cons
  • A little bit warmer
  • Heavy

6. Giro Switchblade MIPS Convertible Downhill MTB Full Face

Giro Switchblade MIPS Convertible Downhill MTB Full Face 

Our Score
Lightweight: 6/10
Ventilation: 6/10
Protection Insurance: 10/10
Comfort: 8/10
Convertitbility: 10/10
Visor Adjustability: 10/10
Material Quality: 10/10
Specifications & Features
  • Suitable for: Enduro, Trail & Downhill riding,
  • Available size: Small, medium, and large
  • Weight: 2.16 pound
  • Shell Material: Polycarbonate
  • EPS Inner foam core
  • Spare visor to mount camera
  • Ventilation: 20 vent openings
  • Roc Loc fit system
  • Chin strap with D ring buckle
  • CPSC, EN-1078, and ASTM 1952-DH Certified
  • Removable chain bar
Prominent Features

It’s sung fitting with chin bar offers the best coverage to the face and head as needed in the best full face MTB helmet. It is very convenient to detach the chin bar by pressing down a button on the left and right sides of the chin bar. In open face mode, it also offers the best coverage to my head and ears. However, as compared to other convertible helmets, I felt it heavier and hotter in open face mode.

   Easily removable chin bar 

I found its chin bar attaching and detaching mechanism very simple. For attaching, The rider just needs to align metal lugs and click them in place. And for detaching, there is a need of pressing two buttons right near the jaw bone. It is the only convertible helmet that uses cheek pads even when the chin bar is not attached. However, if you don’t want to carry your backpack on the ride, then storing its chin-guard after detaching is difficult.

   Helmet with MIPS technology offers excellent protection 

Its incredible sturdy shell with MIPS technology offers superior protection in case of an accident. MIPS technology lets the helmet slide relative to the skull and adds more protection against the rotational force transfer to the brain. After the survey, our research team found that many Giro switchblade owners who have met accidents are satisfied with its protection level.

   Hydrophilic inner pads lining 

Its washable inner pad lining is hydrophilic and antimicrobial. According to the manufacturer, these pads can absorb sweat up to 10 times more than its weight. However, I did not test it experimentally. During the trial, these moisture-wicking pads provide cooling by evaporating sweat at 85’F temperature. There is no sweat pads dripping issue during the ride. But once these pads are fully saturated, then there is a need to press pads with a finger to drip down sweat.

   One-handed adjustment system 

Its Roc Loc adjustment system includes a back knob that helps me to make a quick adjustment with one hand during cycling. During the ride, I moved its visor up and down with one hand to keep sunlight out of my eyes. But, you need a two-handed operation for attaching or detaching its chin-guard. Overall it is the best full face mtb helmet.

   Goggles accommodation 

Its 4 points adjustable visor includes three riding positions, and the 4th high position use to park the goggle above the brow. There is also a channel in the back to hold the goggles strap. During the trial, I did not face any issues related to goggles parking or fogging-up.

    Ventilation 

It’s Roc Loc Air DH fit system balance this helmet slightly off the top of my head. This adjustment allows some air to pass over the head and exhaust from the back. Moreover, there are 20 vent openings to increase cool air circulation around the head. As a full face helmet, I found its ventilation is not bad but as an open face helmet, it is relatively hotter.

   Certified helmet for DH ride 

CPSC, EN-1078, and ASTM 1952 certification proved that it is the safest convertible helmet for downhill cycling, enduro, trail, skateboarding, and roller skates. Furthermore, after examination, our safety expert also declares this helmet safe for aggressive off-road cycling activities.

Pros
  • Excellent protection with MIPS technology
  • Comfortable & lightweight convertible helmet
  • Easily adjustable great fit system
  • Best mtb full face helmet
  • Easily switchable between the full and half face
  • Hydrophilic & washable inner pads
  • 4 step adjustable visor mechanism
  • Downhill standard ASTM 1952-DH Certified
  • Spare visor with camera mount
Cons
  • Bit expensive but it’s quality worth the price
  • Hot and heavy as open face helmet

7. Troy Lee Designs D3 BMX Full Face Helmet Review

Troy Lee Designs D3 BMX Full Face Helmet

Our Score
Lightweight: 5/10
Ventilation: 6/10
Protection Insurance: 9/10
Comfort: 8/10
Goggles Compatibility: 10/10
Material Quality: 10/10
Specifications & Features
  • Available size: X-Small, Small, Medium, Large, X-large, XX-large
  • Available color: Navy/White, Red/White, Navy/silver, Orange/Yellow
  • Suitable for: BMX cycling, Enduro, Trail & Downhill riding,
  • Weight: 2.6 pound
  • Fiberglass Shell material
  • Dual-density EPS+EPP inner foam core
  • Antimicrobial inner pads liner
  • Adjustable sun visor with break-away screws
  • Gro-Pro mount on top
  • 14 intake & 6 exhaust vents
  • Chinstrap with D-ring fastener
  • Quick-release cheek pads
  • Chin guard with dual density pads
  • CPSC, EN1078, ASTM-DH & ASTM-BMX Certified
  • 3-year warranty
Prominent Features

As compared to the latest D4, this D3 helmet comes with the same safety features at a great price point. Its chin guard has dual-density pads to keep teeth safe in case of chin bar impact. Cheek pads of this helmet also come out by pulling tabs strap in case of a neck injury. Moreover, its outer shell also has 2 layers of carbon fiber for more impact resistance. However, the ventilation and weight of the D3 model are not quite outstanding. So, to overcome these issues Troy Lee introduces the D4 model which is 160grams lightweight and more ventilated but almost double in price than D3.

   The construction material of this helmet is quite impressive 

The top layer of the shell is made of unidirectional carbon fiber. And underneath this top layer, there is a woven carbon fiber layer for more impact resistance. Moreover, dual-density EPS+EPP inner core material dissipates energy at high and low crash speed.

Removable and washable inner pad lining is made of high-quality moisture-wicking material. Furthermore, the chin strap comes with the most secure stainless steel D-ring fastener.

   High level of protection 

The highest build quality of this helmet gives the best coverage to the head. There is extra foam in a certain area to enhance the protection level. This heavily padded helmet makes me feel secure and protected while wearing it. Moreover, dual-density pads in the chin bar can keep teeth safe in case of a front impact. Due to its double padded chin bar, our safety expert mark this helmet safest for downhill riding. But our experts show a little disappointment about this helmet because it does not have any rotational impact protection technology.

   Quick-release cheek pads 

This unique feature is really helpful for an emergency case of helmet removal. In case of head injury, a first aider can easily remove this helmet by pulling out cheek pads. Thus the chance of further damage minimize during helmet removal.

   Air channel through EPS foam 

This helmet is not super breathable because it has a relatively small vent opening. Furthermore, all the vents are cover with a wire mesh screen. But there are brow ports that channel cool air into the helmet and exhaust through 6 back vents. During the trial, I found its front-to-back air channeling through EPS foam very effective at high-speed cycling. But at slow speed, I felt like melting at 90’F.

   Its sung fitting does not have odd pressure points 

I feel this helmet a little tight in the fitting. However, there is neither a dial knob nor spare pads for fitting adjustment. But its heavily padded inside feels soft to my face. Maybe, you feel this helmet a little tight at the start but after some rides, pads loosen up and adjust according to your head shape. During the examination, we found that the crown of this helmet fits beautifully on every head shape. Moreover, there is a wraparound design underneath of forehead to keep the liner from moving down.

   Caution 

This helmet comes with multiple size option. If your head circumference is on the edge of two sizes then it better to choose the upper size for this helmet.

Pros
  • Multiple size option
  • Attractive graphic design
  • Best BMX full-face helmet
  • Breakaway visor
  • Compatible with goggles
  • Excellent quality material for the price
  • Helmet with 5 certification
  • The dual pads chin bar
  • Quick-release cheek pads
  • Removable inner pads for wash
  • Go-Pro mount on top
Cons
  • A little heavy
  • Not much breathable
  • D-strap is hard to get on and off
  • Not a MIPS helmet

8. DEMON UNITED Podium Full Face MTB Helmet

DEMON UNITED Podium Full Face MTB Helmet 

Our Score
Lightweight: 7/10
Ventilation: 6/10
Protection Insurance: 8/10
Comfort: 7/10
Goggles Compatibility: 8/10
Material Quality: 9/10
Specifications & Features
  • Available size: small, medium, large and X-large
  • Available color: Black/Red, Black/Orange, Black/Green, Grey/Blue, White, Tan/Black, & Full Black
  • Weight: 2 pound
  • Shell Material: polycarbonate
  • Adjustable sun visor
  • Ventilation: 13 vent opening
  • EPS inner core
  • Removable Soft inner padding.
  • Padded Chin bar
  • Chinstrap with clip buckle
  • CPSC certified
Prominent Features

This best budget full face helmet gives a better look than other expensive helmets. During the trial, I feel this helmet secure and safer than any other expensive open face helmet. If you are an average rider and want standard full-face protection, then this helmet is the best option. MIPS version of this helmet is also available but you have to pay 35$ more for it than the standard version. However, after examination, we found this helmet relatively hotter and heavier than the bell sanction full-face helmet.

   Vent holes near the ears help you to hear very clearly 

There is limited hearing ability due to ears coverage by full face helmet pads. But this helmet solved this problem by giving two vent holes perfectly above the ears. You can also use a Bluetooth headset with this helmet.

   Excellent visibility 

A full face helmet increases face protection, but on the other hand, you have to compromise on excellent visibility and ventilation. But this best full face MTB helmet offers good visibility. There is also plenty of room for sunglasses. During the trial, I could see other people, bike tire, and everything around me easily. However, there was an average airflow around my head. Our expert also rated it as an average ventilated helmet.

   Good visibility 

This helmet has a relatively fewer number of vent openings. However, according to the manufacturer, these vent sizes and shapes are designed by experts to maintain good airflow around the head and face and a rider can use it all through summer. But I did not find this helmet comfortable above 95’F temperature.

   Comfortable helmet 

You feel this full face bicycle helmet a little tight at the start but it is easy to put on/take off. Moreover, it offers satisfactory ventilation and good visibility. You can also hear other people clearly with this helmet on your head. All these features make it a comfortable full face mountain bike helmet.

   Design and graphic 

This is a great-looking well-made helmet for the price. During the examination, I did not find any outside surface imperfection. Moreover, this helmet comes in 9 different eye-catching colors and graphic designs. It is also padded as a motorcycle helmet.

   Customers are satisfied with this helmet protection 

The most important purpose of every helmet is to give impact protection. Its tough polycarbonate shell makes the Podium full face helmet safe. It meets all the CPSC safety standards. Moreover, It has protected many user heads from injury. Customers are satisfied with this great product. But our safety experts do not recommend it for professional riders. They mark it safe for an average rider.

   Its adjustable sun visor can park goggles underneath 

Its adjustable visor is nicely placed to keep the sun out of the eyes. Overall it is the best full-face helmet with a visor. If you need eye protection from dirt or other contaminants, then this helmet can also adopt airtight goggles. However, it is a bit difficult to park goggles underneath the sun visor after moving it to up-position.

Pros
  • Bluetooth headset adoptable
  • Good ventilation
  • Available in all sizes
  • Best budget full-face MTB helmet
  • Back channel to hold goggles strap
  • Comfortable
  • Nice looking
  • Storage bag in accessories
Cons
  • Some customer of round face shape has the fitting issue
  • Not a MIPS helmet
  • A little Heavy

9. Bell Sanction Adult Full Face MTB Helmet

Bell Sanction Adult Best Full Face Mountain bike Helmet 

Our Score
Lightweight: 8/10
Ventilation: 7/10
Protection Insurance: 7/10
Comfort: 8/10
Goggles Compatibility: 9/10
Material Quality: 8/10
Specifications & Features
  • Available size: X-small, small, medium, and large
  • Available color: Matte Blue, Gloss Black, Gloss Silver/Red/Blue, & Matter Crimson/ Slate/Gray
  • Suitable for: BMX or dirt jumping
  • Weight: 1.87 pound
  • Shell Material: ABS
  • EPS inner foam core
  • Adjustable sun visor
  • Chin strap with clip-buckle
  • 15 vent opening
  • CPSC,CE& EN1078 certified
Prominent Features

If you are a BMX rider and looking for the best mountain bike helmet under 100$ then this helmet is a suitable option. As compared to the same price Demon united podium helmet, the Bell sanction is lightweight and more ventilated. However, the protection level of both helmets is the same.

   Suitable for child and adults 

This helmet is designed for adults, but its x-small size also fits nicely to a child of age less than 5 years. Before purchasing, measure the head circumference above the ears. Then consult the guide for a good size match. During the examination, I found this helmet is a little on the small side. So, If your head circumference is on the edge of two sizes then it better to choose the upper size for this helmet.

   Tight-fitting at first but lose a bit after sometime 

It’s a budget BMX full-face helmet. So, there is a decent amount of thick but soft padding on the cheeks and back of the helmet to maintain snug fitting. If you feel uncomfortable, then the helmet size is probably small. But if you feel it bulky, then the size is probably big. During the evaluation, I found it a bit tight but, there are small gaps in the foam cushion to allow air to circulate. It is a little difficult for this helmet to accommodate long hairs.

   Acceptable full face Protection 

Its protection level is satisfactory due to the ABS shell material and EPS foam core. Moreover, ABS material is much cheaper, lightweight, and hard. This helmet meets all the CPSC safety standards and did a great job by protecting many average riders’ heads from injuries. Customers are satisfied with this great product. However, our safety expert does not recommend it for aggressive adult riders.

   Good ventilation and Comfort 

As we all know, A full face helmet protects the entire head, chin, and face. However, with increase protection, a rider has to compromise on ventilation and comfort. But this helmet comes with 15 vent openings to maintain cool air circulation around your neck, jaws, and head. As compared to other full face helmets in this budget, I found this helmet ventilation good enough. Moreover, its lightweight with inner foam padding makes this helmet fit properly. All these features increase the comfort level of an average rider. Moreover, I did not find any problem with this helmet goggles compatibility.

Pros
  • Best budget full face MTB helmet
  • Available in different size options
  • Attractive graphic design
  • Also suitable for skateboarding and roller skates
  • Lightweight
  • Best Mtb full-face helmet
  • Easily goggle accommodate
  • Good quality material
  • Good looking & stylish
  • Excellent for kids & adults
Cons
  • Tight for chubby cheeks face
  • Not a MIPS helmet
  • No extra pads or dial knob for fitting adjustment

10. DEMON UNITED FR link Convertible Helmet

DEMON UNITED FR link Convertible Helmet

Our Score
Lightweight: 8/10
Ventilation: 9/10
Protection Insurance: 7/10
Comfort: 8/10
Covertibility: 7/10
Visor Adjustability: 9/10
Material Quality: 9/10
Specifications & Features
  • Available size: Medium/Large (22.8”-24.4”)
  • Suitable for: trail & Enduro cycling.
  • Weight: 1.79 pound
  • Shell Material: Polycarbonate
  • EPS Inner foam core
  • Adjustable sun visor
  • 20 large vent openings
  • Dial knob for fitting adjustments
  • Additional thickness pads for correct sizing
  • Chinstrap with clip buckle
  • CPSC Certified
  • Flip-easy removable chin guard
Prominent Features

This latest convertible helmet is designed by DEMON UNITED to keep the rider’s head cool and protected with a stylish helmet. Its removable chin bar makes this helmet versatile for uphill and downhill riding. You can detach and plugin its chin bar easily in one step without any tool. We recommend this helmet best for a day ride in summer.

   Good ventilated helmet in full-face mode 

Its aerodynamic design has 20 big vents openings that maximize cool air circulation around the head, jaws, neck, and face. During the trial, my head did not get sweat at 85’F temperature. On a pretty hot day, this helmet feels like air conditioning around the head due to sweat evaporation.

   Lightweight and robust material 

In-mold construction of outer shell with polycarbonate material makes this helmet very light in weight. In open face mode, our head of testing team declared it the best trail helmet for the all-day ride in summer.

   Dual fit adjustment system 

You can also tune fit tension around your head by using a cinch-tight dial in the back. However, this helmet also comes with an extra padding kit to maintain sung fitting around the head.

   Its movable visor can park goggles underneath 

This helmet can easily accommodate goggles and sunglasses. Moreover, you can also easily place goggles above your brow by moving the visor to an up position. There is also a channel in the back to fit the goggle strap perfectly.

   Relatively easy to remove its chin bar 

There are two stainless steel tabs on the chin bar that slot into the internal frame of this helmet. As compared to the Giro switchable helmet, its chin bar detaching or plugin mechanism is relatively difficult. You have to align metal tabs and then click them in place. Anyhow, after a detailed examination, our safety expert marks it as the best convertible helmet for average enduro and trail rider.

Pros
  • Cheap convertible helmet
  • Extra pad kit for adjustment
  • Good protection level
  • Women full-face mountain bike helmet
  • Helmet with maximum ventilation
  • Lightweight helmet
  • Easy plugin and plug out of Chin bar
  • Unique modern design
Cons
  • Limited size option
  • Chin bar look flimsy but feel pretty strong after attaching to the helmet
  • Not certified for downhill racing
  • Not a MIPS helmet
Conclusion

Our team carefully selected these 10 best full face MTB helmets. Every product I have described, are come with some unique features. This article is very beneficial for the readers to select the best full face downhill MTB helmet according to his/her choice. Whatever you chose will be the right decision; because all these are best-rated helmets are known for their protection, durability & comfort.

The top pick of our team is Smith Mainline MIPS full face Bike Helmet. It is the most breathable and lightweight full face helmet with no compromise on safety. And we are sure, after reading this article you can find your best full face MTB helmet.

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