7 Best Bell Mountain Bike Full Face Helmet Options for Trail Riders (2026)
Compare seven bell mountain bike full face helmet options by fit, ventilation, weight and chin bar design, with buying tips to help you pick the right one.
By maxmotorcyclevideos editorial team
Updated November 6, 2026
As an Amazon Associate I earn from qualifying purchases. This page may contain affiliate links.
Shopping for a bell mountain bike full face helmet means balancing protection, comfort and how well the helmet suits the riding you actually do. Downhill runs, bike park laps and aggressive trail riding all put different demands on a lid, so the right choice depends on where and how you ride. This guide compares seven full-face options from the Bell lineup and the broader mountain bike market, using manufacturer specifications, brand reputation and common owner feedback as the basis for each pick. Our selection criteria focus on protection standards, fit system quality, ventilation, weight, chin bar design and goggle compatibility.
Our Top Picks
Quick Comparison
| Product | Best for | Key feature |
|---|---|---|
| Bell Super DH MIPS | Downhill and bike park riding | Heavy-duty coverage with MIPS liner |
| Bell Sixer MIPS | Aggressive trail and enduro riders | Lower-weight shell with adjustable visor |
| Bell Full-9 Fusion MIPS | Riders wanting one helmet for trail and park | Removable chin bar for versatility |
| Bell Stoker MIPS | Budget-conscious trail riders | Solid full-face protection at a budget-friendly tier |
| Bell Super Air R MIPS | Riders who want a lighter full-face option | Vented design with a lightweight profile |
| Bell Sanction 2 DLX MIPS | Riders who value a premium fit | Premium padding and fit system |
| Bell Sixer Helmet (Youth) | Younger riders building skills | Scaled-down full-face coverage for kids |
Bell Super DH MIPS
This is the choice for riders who spend most of their time on steep descents and bike park laps where impact protection matters more than saving grams. It suits riders who tend to hit rough terrain at speed and want maximum chin and jaw coverage.
Key specs
- Full-face design with extended chin bar
- MIPS (Multi-directional Impact Protection System) liner
- Designed to meet downhill-oriented impact standards as specified by Bell
- Goggle strap channel for compatible goggles
Pros
- Substantial coverage for high-speed descents
- MIPS liner adds rotational impact management
- Well suited to bike park use
Cons
- Heavier than trail-focused full-face helmets
- Can run warm on long climbs
Bell Sixer MIPS
The Sixer is aimed at aggressive trail and enduro riders who want full-face protection without the bulk of a dedicated downhill lid. It works well for riders who climb a fair amount and descend hard on the same ride.
Key specs
- Full-face construction with a trail-oriented chin bar
- MIPS liner
- Adjustable visor
- Ventilation ports across the shell
Pros
- Good balance of weight and coverage
- Adjustable visor helps with sun and glare
- Works with most goggles that have a standard strap
Cons
- Less coverage than a dedicated downhill helmet
- Vent performance varies with riding pace
Bell Full-9 Fusion MIPS
This helmet is a strong pick for riders who want one lid for both trail riding and park laps. Its removable chin bar lets you switch between a full-face setup and an open-face configuration for climbs or warmer days.
Key specs
- Modular-style removable chin bar
- MIPS liner
- Adjustable fit system
- Goggle-compatible design
Pros
- Versatile across riding styles
- Chin bar removal helps on long climbs
- Good ventilation when open-faced
Cons
- Chin bar attachment points need periodic checking
- Full-face protection depends on keeping the chin bar secured
Bell Stoker MIPS
The Stoker is a practical option for trail riders who want genuine full-face coverage and MIPS protection without paying for premium extras. It fits riders who are building their kit and want a dependable helmet for regular trail sessions.
Key specs
- Full-face shell with chin bar
- MIPS liner
- Adjustable retention system
- Vents for airflow on climbs
Pros
- Solid protection for the category
- Straightforward fit adjustment
- Good entry point into full-face riding
Cons
- Fewer premium comfort features than higher tiers
- Padding may need time to break in for some heads
Bell Super Air R MIPS
Riders who find traditional full-face helmets stifling on warm trails often look at this lighter, more heavily vented design. It suits climbers and all-day riders who want full-face coverage without the weight of a downhill-focused shell.
Key specs
- Lightweight full-face shell with large vent openings
- MIPS liner
- Adjustable fit system
- Goggle strap compatibility
Pros
- Lighter feel for climbing
- Strong airflow for warm conditions
- Good comfort for longer rides
Cons
- Vents can let in debris in dusty or muddy conditions
- Less impact coverage than heavier downhill models
Bell Sanction 2 DLX MIPS
This is the pick for riders who prioritize a refined fit and premium comfort features. It appeals to riders who will wear a helmet for hours and want padding and retention that feel dialed in.
Key specs
- Full-face construction with premium padding
- MIPS liner
- Refined fit retention system
- Goggle-compatible design
Pros
- Premium interior comfort
- Good fit adjustment range
- Well finished for everyday trail use
Cons
- Higher-tier positioning than budget options
- Heavier than lightweight trail models
Bell Sixer Helmet (Youth)
Parents looking for a full-face option for a young rider who is progressing to aggressive terrain will find this scaled-down version useful. It is intended for children who need coverage as they build confidence on steeper trails.
Key specs
- Youth sizing with full-face coverage
- Adjustable retention system
- Ventilation ports
- Compatible with youth goggles
Pros
- Full-face coverage sized for younger heads
- Adjustable fit as children grow
- Consistent styling with adult Sixer models
Cons
- Sizing needs careful checking against a child’s head measurement
- Fit window is narrower, so growth may require replacement
Buying Guide
Selection Criteria We Used
Each helmet in this list was assessed against the same set of questions. Does it meet a recognized impact standard? Does it use a rotational impact liner such as MIPS? How well does the retention system adjust? What is the approximate weight range manufacturers specify? How does the ventilation layout suit climbing versus descending? Does the chin bar design match the intended riding style? These checks give a consistent way to compare products that look similar on the shelf.
Important Features to Look For
Full-face helmets share a few core features, but the details vary. Look for a shell that covers the chin, jaw and back of the head fully, a liner with a rotational impact system, and a retention system that holds the helmet steady without pressure points. Padding should be removable and washable, since sweat and grit build up quickly on trail helmets.
Specs to Check Before You Buy
- Certification labels: Confirm the helmet displays a recognized safety standard for bicycle helmets and that the label is on the product.
- Weight: Manufacturers typically specify weight for a given size. Full-face helmets commonly sit well above open-face helmets, so compare within the category.
- Chin bar design: Fixed chin bars offer simpler construction, while removable designs add versatility but need regular checks.
- Goggle compatibility: Check that the goggles you own have a strap channel or goggle-friendly visor cutout that fits the helmet’s shape.
- Size range: Use the manufacturer’s sizing chart and measure head circumference just above the eyebrows.
Choosing by Need
If your riding is mostly bike park and downhill, prioritize coverage and impact liner quality. If you climb often and ride trails in warm weather, favor ventilation and lower weight. If you want one helmet for mixed riding, a modular or removable chin bar design gives more flexibility. For a young rider, choose youth sizing and plan for the helmet to be replaced as the child grows.
Things to Watch Out For
- Fit over comfort: A helmet that feels loose or pinches at the temples will not protect well. Test the retention system before every ride.
- Vent-related debris: Large vents let in dust and small debris, so consider a neck or face buff on dusty trails.
- Crash replacement: Most manufacturers recommend replacing a helmet after a significant impact, even if no damage is visible.
- Aftermarket changes: Adding stickers, drilling vents or modifying padding can affect performance. Stick to manufacturer-approved accessories.
FAQ
What does MIPS do in a bell mountain bike full face helmet?
MIPS is a liner system designed to allow a small amount of rotational movement between the helmet and the head during certain angled impacts. Manufacturers state this can help reduce rotational forces that a standard helmet might transmit. It is an added layer of protection, not a guarantee against injury.
How should a full-face helmet fit?
The helmet should sit level on the head, about two finger widths above the eyebrows, with the retention system snug but not painful. The cheek pads should press lightly against your face when you open your mouth. Shake your head gently to confirm the helmet stays put.
Can I use goggles with a full-face helmet?
Most full-face helmets in this category are designed to work with goggles that have a compatible strap and a frame that fits under the visor. Check the goggle and helmet manufacturers’ compatibility notes before buying, and make sure the goggle frame does not press on the chin bar.
How often should I replace my helmet?
Manufacturers commonly recommend replacing a helmet after a crash, and periodically if the shell, liner or retention system shows wear. Many suggest replacement every few years even without impact, since materials degrade with sweat, sun exposure and storage conditions. Check your specific helmet’s guidance.
Are full-face helmets hot to wear?
They can be warmer than open-face helmets, especially on climbs. Choose a model with larger vents and lighter construction if heat is a concern, and carry a hydration pack or drink water regularly on long rides.
How do I clean a full-face mountain bike helmet?
Remove the removable padding and wash it by hand with mild soap and cool water, then air dry it away from direct heat. Wipe the shell with a damp cloth and avoid harsh solvents, which can damage the finish and labels. Check the manufacturer’s cleaning instructions for your model.
Is a full-face helmet worth it for trail riding?
For riders who descend steep, technical terrain or ride bike parks, full-face coverage offers meaningful protection for the chin and jaw. For casual riders on mellow trails, an open-face or trail helmet may suit better. Consider your typical terrain and speed when deciding.
Conclusion
The best bell mountain bike full face helmet depends on how you ride. For downhill and bike park laps, the Bell Super DH MIPS offers the most coverage. Aggressive trail and enduro riders will find a good balance in the Bell Sixer MIPS. If you want one helmet for trail and park, the Bell Full-9 Fusion MIPS adds versatility through its removable chin bar. Budget-minded riders can consider the Bell Stoker MIPS, while climbers and riders in warm weather may prefer the Bell Super Air R MIPS. Those who value premium comfort should look at the Bell Sanction 2 DLX MIPS, and parents of young riders will find the Bell Sixer Helmet (Youth) a sensible starting point. Always check fit, certification labels and manufacturer guidance before you ride, and consult a bike shop fitter if you are unsure of your size.
About the author
maxmotorcyclevideos editorial team writes reviews and buying guides for Max Motorcycle Videos.