Full Face Downhill Mountain Bike Helmet: 6 Best for Gravity Riding (2026)
Find the best full face downhill mountain bike helmet for your riding. Compare six picks by fit, coverage, ventilation and safety standards before you buy.
By bikehelmetsnow editorial team
Updated November 6, 2026
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A full face downhill mountain bike helmet is the standard choice for riders who take steep, fast, rocky trails and jump features at speed. Unlike trail or enduro lids, a full face design adds a chin bar that protects the jaw, teeth and face from impacts that a standard open-face helmet leaves exposed. The right model balances coverage with weight, ventilation and fit, and it needs to meet a recognized impact standard such as ASTM F1952 or CPSC for downhill use. Below, we compare six well-regarded options and explain how to choose one that fits your head, your terrain and your riding style.
Our Top Picks
These picks were selected from manufacturer specifications, brand reputation for downhill protection and the feedback patterns riders commonly report. They are not ranked by performance, and no hands-on testing was done for this guide.
Quick Comparison
| Product | Best for | Key feature |
|---|---|---|
| Fox Racing Rampage Pro Carbon | Aggressive park and race riders | Carbon fiber shell with a dedicated downhill rating |
| Troy Lee Designs DH Full Face | Riders wanting a classic race-style fit | Multi-density EPS liner with a removable visor |
| POC Coron Air Spin | Riders who want rotational impact protection | MIPS rotational-impact system |
| Bell Super DH Spherical | Riders who value a proven, long-running design | Spherical fit with a fully integrated chin bar |
| Giro Cipher MIPS | Riders who want a lighter, ventilated option | Extensive ventilation with MIPS protection |
| Smith Mainline MIPS | Riders who ride in mixed conditions | Integrated goggle-compatible fit system |
Fox Racing Rampage Pro Carbon
This helmet suits experienced downhill and park riders who want a stiff, race-oriented shell and are willing to accept extra weight for stronger structural protection. It is built for high-speed impacts on rough terrain.
Key specs
- Carbon fiber composite outer shell
- Downhill-rated construction
- Adjustable retention system
- Removable visor and chin bar hardware (check the current model for exact configuration)
Pros
- Rigid shell offers a solid feel at speed
- Strong reputation for downhill-focused design
- Good coverage of the jaw and temples
Cons
- Heavier than trail-oriented full face models
- Ventilation is modest compared with lighter helmets
Troy Lee Designs DH Full Face
Riders who prefer a traditional full face profile with a snug, race-style fit will likely appreciate this model. It is a common choice among riders who ride lift-served bike parks regularly.
Key specs
- Multi-density EPS liner
- Full face coverage with integrated chin bar
- Adjustable fit system
- Visor included or available depending on configuration
Pros
- Clean, well-fitting profile with good field of view
- Liner design suited to repeated downhill impacts
- Widely recognized in the downhill community
Cons
- Fit can run snug for some head shapes, so try before committing
- Limited airflow on hot climbs
POC Coron Air Spin
This is a good match for riders who want rotational impact protection built into a full face design and who ride a mix of technical descents and longer shuttle days. It sits toward the lighter end of the downhill category.
Key specs
- MIPS rotational-impact liner system
- Full face coverage with chin bar
- Ventilation channels across the crown
- Adjustable retention and fit system
Pros
- MIPS adds a layer of rotational protection
- Better airflow than many full face competitors
- Comfortable for longer days in the saddle
Cons
- Some riders find the chin bar less rigid than race-focused shells
- Sizing charts should be checked carefully
Bell Super DH Spherical
Riders who want a long-established downhill design with a spherical outer shape and a fully integrated chin bar will find this helmet familiar. It works well for riders who value consistent fit and a proven build over the latest features.
Key specs
- Spherical shell geometry
- Fully integrated chin bar
- EPS liner with downhill-oriented construction
- Adjustable retention system
Pros
- Long track record in downhill racing
- Stable fit at higher speeds
- Generally straightforward to maintain
Cons
- Weight is higher than newer lightweight designs
- Limited color and visual options compared with some rivals
Giro Cipher MIPS
This option fits riders who want a full face helmet that does not feel as heavy or hot as traditional downhill lids. It is a reasonable pick for those who ride long descents with significant climbing in between.
Key specs
- MIPS rotational-impact protection
- Ventilation across the shell
- Full face coverage with chin bar
- Adjustable fit system
Pros
- More ventilated than most downhill-focused full faces
- MIPS included for rotational protection
- Comfortable for mixed trail and downhill use
Cons
- Not as stiff or heavy-duty as dedicated race shells
- Some riders may want more coverage for aggressive park riding
Smith Mainline MIPS
Riders who regularly switch between goggles and sunglasses, or who ride in variable weather, may appreciate the goggle-compatible fit approach on this model. It suits all-day lift-served riders more than pure race use.
Key specs
- MIPS rotational-impact system
- Integrated goggle-compatible fit
- Full face coverage with chin bar
- Adjustable retention
Pros
- Good integration with goggles and eyewear
- MIPS adds rotational protection
- Balanced comfort for longer sessions
Cons
- Less race-oriented than the top downhill shells
- Fit may feel different from traditional full face profiles
Buying Guide
Selection Criteria
A full face downhill helmet should be judged on four things: impact certification, coverage, fit and weight with ventilation. Start with the standard. Downhill-specific helmets are typically tested to ASTM F1952, which is the standard most often cited for downhill mountain bike helmets, while some regions reference CPSC requirements. Check the packaging or the manufacturer’s site for the certification your helmet claims.
Important Features
- Chin bar integration: A fully integrated chin bar tends to be more stable than a detachable one at speed.
- MIPS or similar rotational protection: This system is designed to reduce rotational forces during angled impacts.
- Retention system: A dial or ratchet system with a snug, even fit around the back of the head is important.
- Visor: A visor helps with sun and debris, but it can affect how the helmet sits when you look up on climbs.
- Goggle compatibility: If you wear goggles, check the vent and strap design so the two fit together without gaps.
Specs to Check
- Head circumference measured about one inch above the eyebrows
- Certification label, usually inside the shell
- Helmet weight as listed by the manufacturer, keeping in mind that size changes weight
- Ventilation count and placement
- Replacement policy after a crash
Choosing by Need
- Lift-served bike park riding: Prioritize comfort, ventilation and goggle fit.
- Race or aggressive park riding: Prioritize a rigid shell and a stable chin bar, and accept a little extra weight.
- Mixed trail and downhill riding: Look for a lighter model with good airflow.
- Hot climates: Ventilation should be near the top of your list.
Things to Watch Out For
- Do not buy a helmet based on looks alone. Fit matters more than style.
- Avoid sizing from a single brand’s chart without measuring your head.
- Replace any helmet after a significant crash, even if damage is not visible.
- Store helmets out of direct sunlight, since heat and UV can degrade materials over time.
- Check that the retention system sits low on the back of the head and that the chin strap is snug without pinching.
FAQ
What is the difference between a full face and an enduro helmet?
A full face helmet includes a chin bar that protects the jaw and face, while an enduro or trail helmet typically has an open face with a shorter chin area and more ventilation. Full face models are generally heavier and hotter but offer greater coverage at speed.
Do I need MIPS in a downhill helmet?
MIPS is not required for certification, but many riders choose it because it is designed to reduce rotational forces in angled impacts. It is a common feature in current downhill and full face designs.
How should a full face helmet fit?
It should feel snug all the way around without pressure points. The chin bar should sit close to the chin without touching the throat, and the helmet should not shift when you shake your head. Check the manufacturer’s sizing chart and measure your head circumference.
Can I wear goggles with a full face helmet?
Yes, but goggle fit varies by helmet. Look for models designed to work with goggles and check that the goggle strap sits under the helmet’s retention system without creating gaps or pressure.
How long does a downhill helmet last?
Manufacturers generally recommend replacing a helmet after any significant impact, and many suggest replacing it after several years of regular use because materials can degrade. Check the specific guidance from the brand you buy.
Is a heavier helmet safer?
Not necessarily. Weight depends on materials and design, and a heavier helmet is not automatically more protective. Focus on certification, fit and coverage instead of weight alone.
Should I consult a professional about helmet fit?
If you are unsure about sizing or fit, especially after a crash or if you have a medical condition affecting your head or neck, consult a bike shop fitter or a qualified healthcare professional before riding.
Conclusion
Choosing a full face downhill mountain bike helmet comes down to fit, certification and how you ride. For aggressive race and park use, a rigid shell such as the Fox Racing Rampage Pro Carbon or the Bell Super DH Spherical suits riders who value stability. The Troy Lee Designs DH Full Face and Giro Cipher MIPS offer strong all-around fits for different head shapes and airflow needs. The POC Coron Air Spin and Smith Mainline MIPS are better matches for riders who want rotational protection with more comfort over long days. Measure your head, confirm the certification, try the fit when possible, and replace the helmet after any serious crash.
About the author
bikehelmetsnow editorial team writes reviews and buying guides for Bike Helmet Snow.