Steep descents, bike park laps, and enduro stages put teeth, jaw, and chin at risk in a way a standard half shell never covers. A full face design adds a chin bar and extended coverage while keeping airflow and goggle compatibility in focus for longer rides.
You need a fit that stays put through rough sections without pressing hard on cheeks or jaw. Your helmet choice should match head circumference first, then riding style, because padding and closure systems differ across these picks.
The Main Contenders
O’Neal Sonus Helmet Olive/Orange
OutdoorMaster Grizzly Full Face MTB Helmet Pearl White Medium
OutdoorMaster Grizzly Full Face MTB Helmet Meteorite Black Large
Fly Racing Rayce Helmet Matte Grey Large
Fly Racing Rayce Helmet Black Large
ILM Mountain Bike MTB Full Face Helmet HT58 Adjustable Size Dial
Bell Servo BMX Helmet Matte Black
A Breakdown Of The Leading Choices
Downhill and enduro riders get a purpose built full face shape here, aimed at demanding hills and trail descents. The shell uses ABS, a hard plastic shell material known for impact resistance, paired with multiple vents for airflow during climbs.
You get a Fidlock magnetic buckle that clicks shut and releases with one hand, handy with gloves on at the top of a run. A removable sweat absorbing liner can go in the wash between rides, which keeps the interior fresher for most trail days.
Where It Excels
- Magnetic buckle allows one handed fastening with gloves
- Removable washable liner simplifies cleaning after sweaty rides
- Multiple vents support airflow on long climbs
- ABS shell meets EN1078 bicycle helmet standard
- Full face coverage suits downhill and enduro use
Things To Consider
- Olive and orange colorway limits matching choices
- Medium sizing needs a circumference check before ordering
Gravity riders looking for ventilation get 27 vents molded into the shell, with weight listed just under 750g. That combination matters on bike park laps where heat builds fast and neck fatigue sets in.
The chin area uses EPP, expanded polypropylene foam, a cushioning foam layer around the chin bar, plus shock pads for added coverage. Two D-ring thicknesses let riders tune strap tension, and a goggle strap channel keeps eyewear positioned.
What Helps Most
- 27 vents channel airflow across the shell
- Weight just under 750g eases long sessions
- Removable washable liner aids cleaning
- Goggle strap channel holds eyewear in place
Worth Noting
- Fit range covers 57 to 62cm head circumference
- Pearl white finish shows dust on dry trails
- Two chin pad thicknesses add setup steps
Who It Suits Best
Riders in the 57 to 62cm range who ride downhill, DH, or BMX in warm conditions.
Where Another Pick Suits Better
Fly Racing Rayce Helmet Matte Grey Large suits riders who want downhill standard coverage with a D-ring strap.
Same Grizzly platform as the pearl white version, dressed in meteorite black for a darker look on the trail. The 27 vent layout and sub 750g weight carry over, so airflow and balance feel familiar across colors.
You’ll notice the pivoting visor here, positioned to block sun, wind, and rain while riding. A washable comfort liner and two D-ring thicknesses give adjustment options, depending on head shape and cheek pad preference.
What Pays Off
- Meteorite black finish hides trail dust better
- Pivoting visor shields eyes from sun and wind
- Removable liner can be washed between rides
Trade Offs
- Large sizing narrows the fit range for smaller heads
- Dark shell absorbs more heat in direct sun
Bike park and downhill riders get a poly-alloy shell with EPS, expanded polystyrene foam, a shock absorbing inner foam layer, meeting ASTM F1952-15, CPSC 1203, and CE EN1078 standards. That standard set signals gravity use rather than casual trail use.
Your long lap days benefit from the TFV airflow system, with intake and exhaust ports moving air through the shell. Weight sits near 930g in size M, heavier than the OutdoorMaster Grizzly, and the trade-off shows up as a more substantial feel on descents.
Bright Spots
- Meets downhill ASTM F1952-15 standard
- TFV ports support airflow in warm conditions
- Removable liner with cheek pads washes clean
- Adjustable visor uses aluminum hardware
- D-ring closure gives a secure strap hold
Minor Gripes
- 930g weight feels heavier than lighter picks
Black finish, same Rayce construction as the matte grey version, built for downhill, BMX, and bike park riding. The poly-alloy shell and EPS liner meet the same downhill and cycling standards, so protection coverage stays consistent across colors.
For most trail days, the removable liner and cheek pads keep cleaning simple between sessions. The adjustable visor with aluminum hardware moves quickly between positions, and the D-ring strap holds firm through rough sections.
Real-World Strengths
- Black finish pairs with dark riding gear
- Washable liner refreshes after race days
- Adjustable visor adapts to riding style
Room For Improvement
- Weight near 930g adds neck load on long days
- Large size limits fit for smaller heads
- Dark color holds heat in summer sun
Made For
Downhill and BMX riders in large size who prefer a dark finish and D-ring closure.
Consider Something Else When
OutdoorMaster Grizzly Full Face MTB Helmet Pearl White Medium suits riders who want lighter weight and more vents.
Trail riders get an adjustable size dial plus an adjustable buckle, a combo aimed at a stable fit across head sizes. The package includes goggles with soft foam around the frame, useful for dusty off road sections and dirt bike style riding.
You can adjust the visor for changing light on climbs and descents, while vents across the shell help airflow during long sessions. The chin bar uses EPP reinforcement with EPS foam, meeting ASTM F1447 and CPSC standards.
Useful Strengths
- Size dial tunes fit across head sizes
- Included goggles add eye coverage for dust
- Removable washable liner keeps interior fresh
- Adjustable visor adapts to trail light
Points To Note
- Style runs large, ordering one size down helps fit
- Extended chin bar adds bulk for storage
BMX and trail riders get full chin and jaw coverage with plush interior padding and a neck roll for extra padding at the back. The ABS shell handles challenging conditions, and an adjustable visor helps shield eyes from sun and branches.
Cheek pads come out for washing, a practical touch for riders logging frequent sessions. Fit suits most heads measuring 58 to 61cm, and a head measurement before ordering prevents a loose or tight result.
The Practical Payoff
- Plush padding covers head, chin, and jaw
- Removable cheek pads wash between rides
- Neck roll adds padding and protection
Softer Spots
- Fit range limited to 58 to 61cm heads
- Design suits bicycles only, not motorized bikes
- Matte black finish shows scuffs over time
What Matters Most Before Choosing Full Face Helmets
Fit And Head Circumference
Measure head circumference and compare it with the stated range for each model. Cheek pad thickness and dial systems change the feel, so a snug but even pressure around the forehead and jaw matters more than a loose strap.
Ventilation For Long Climbs
Vent count and port placement affect heat buildup on climbs and during bike park laps. Riders logging long sessions benefit from multiple intake and exhaust paths, while short runs tolerate fewer vents.
Closure And Liner Care
Magnetic buckles, D-rings, and dial systems each change how quickly the helmet goes on with gloves. Removable washable liners and cheek pads simplify cleaning, a real factor for riders who sweat through multiple rides each week.
Standards And Chin Protection
Downhill standards such as ASTM F1952-15 signal gravity use, while EN1078 and CPSC standards cover bicycle helmet requirements. Chin bar foam types, including EPS and EPP layers, describe how impact absorption is structured.
Key Considerations Across These Picks
Common Shopping Slip Ups
Skipping a circumference measurement leads to returns and poor fit. Ordering by usual hat size alone misses cheek pad differences, and ignoring liner washability creates a helmet that stays damp between rides.
What The Higher Tier Buys
Higher tier models add downhill specific standards, aluminum visor hardware, and structured airflow systems. Those additions suit frequent gravity riding, while casual trail use gains less from the extra structure.
Frequently Asked Questions
What head size range fits most full face MTB helmets here?
Most picks list a range such as 57 to 62cm or 58 to 61cm. Measure circumference and match it with the stated range for a secure fit.
How does ventilation differ between these picks?
Vent counts range from multiple ports to 27 vents on the OutdoorMaster Grizzly. More vents help airflow on climbs, while TFV ports on the Fly Racing Rayce focus on intake and exhaust flow.
Are goggles included with any of these helmets?
The ILM HT58 includes goggles with foam padding around the frame. Other picks use a goggle strap channel or visor without included eyewear.
Which closure systems appear across the list?
Closures include Fidlock magnetic, D-ring strap, and adjustable buckle with size dial. Magnetic systems suit glove use, while D-rings give a traditional secure hold.
Can these helmets be used with motorized bikes?
The Bell Servo suits bicycles only and is not for motorized bikes. Check the intended use for each model before riding a motorized vehicle.
Closing Remarks
Gravity riders who want downhill standards and structured airflow should look closely at the Fly Racing Rayce in matte grey. Riders who prioritize lighter weight and high vent count will find a strong match in the OutdoorMaster Grizzly. Match circumference, closure preference, and liner care with the riding style that fills most weekends.