A strong full-face dirt bike helmet combines a stated safety certification, a secure fit and features suited to off-road riding; the right choice depends on whether you prioritize motocross performance, added impact-management technology or a ready-to-ride kit. This roundup compares 10 options, from the ILM 128S with a vented EPS liner and detachable visor to the Fox Racing V1 with Mips and DOT and ECE22.06 certifications. Several picks also include goggles, gloves or a face mask, while others focus on helmet features alone.
Check sizing carefully: listed ranges differ, and the ILM 606V specifically runs smaller than regular. Use the product details below to shortlist options, then confirm the size and current certification information for the exact model you intend to buy.
The ILM 128S is our Best Full Face Dirt Bike Helmet pick for dedicated off-road use. It is listed as DOT-certified and meeting or exceeding FMVSS-218, with an ABS shell, a vented high-density EPS liner, front and rear vents, removable washable pads and a detachable visor. Those details directly match motocross and dirt-bike riding needs.
If Mips or a bundled set matters more to you, the Fox Racing V1 or Oumurs 806 may suit your priorities better.
Our Top Picks
Best OverallBuilt for dirt-bike and off-road use, it is DOT and FMVSS-218 listed, with a vented EPS liner, washable pads and detachable visor.
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Mips Safety SystemThis off-road helmet lists DOT, FMVSS-218 and ECE22.06 compliance, plus Mips and adult sizing from XS through XXL.
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Complete Riding KitA DOT FMVSS-218 ABS-and-EPS helmet for dirt bike and ATV use, supplied with goggles, gloves and a mask across four adult size ranges.
View on Amazon- Multi-Vent Design TRIANGLE AF-10A
Compare these full-face dirt bike helmets
| # | Product | Material Type | Compatible with Vehicle Type | Weight | Buy |
|---|---|---|---|---|---|
| 1 | 1. ILM 128SBest Overall | Acrylonitrile Butadiene Styrene (ABS)… | Dirt Bike | 1.88 kg | View on Amazon |
| 2 | 2. Fox Racing V1Mips Safety System | Acrylonitrile Butadiene Styrene (ABS)… | Off-Road Bike | 1 kg | View on Amazon |
| 3 | 3. Oumurs 806Complete Riding Kit | Acrylonitrile Butadiene Styrene (ABS)… | ATV, UTV | 1420 g | View on Amazon |
| 4 | 4. TRIANGLE AF-10AMulti-Vent Design | Acrylonitrile Butadiene Styrene (ABS)… | ATV, Go-Kart, Motorcycle, UTV | — | View on Amazon |
| 5 | 5. QSTK Full Face HelmetRiders wanting a bundled kit | Acrylonitrile Butadiene Styrene (ABS) | ATV | — | View on Amazon |
| 6 | 6. 1Storm HF801Riders wanting washable padded interiors | Thermoplastic | ATV, UTV | 4 lb | View on Amazon |
| 7 | 7. O'Neal 1SRSOff-road riders preferring a simple helmet | Polyester | Motorcycle | 1500 g | View on Amazon |
| 8 | 8. CARTMAN Full HelmetRiders seeking a washable-liner kit | — | — | 1.52 kg | View on Amazon |
| 9 | 9. ILM 606VDual-sport riders wanting visor options | Acrylonitrile Butadiene Styrene (ABS) | ATV, Motorcycle | 1.71 kg | View on Amazon |
| 10 | 10. O'Neal SierraAdventure riders wanting an integrated shield | Acrylonitrile Butadiene Styrene (ABS) | ATV, PWC, off-road-motorcycles… | 3.5 lb | View on Amazon |
Detailed Reviews: Best Full Face Dirt Bike Helmet

#1 · Best Overall
1. ILM 128S
- Material Type: Acrylonitrile Butadiene Styrene (ABS)…
- Compatible with Vehicle Type: Dirt Bike
- Weight: 1.88 kg
Best for: Riders wanting washable helmet pads.
Why it ranks #1: Built for dirt-bike and off-road use, it is DOT and FMVSS-218 listed, with a vented EPS liner, washable pads and detachable visor.
Removable, washable inner pads make the ILM 128S a practical pick for riders who want to maintain the helmet’s interior after off-road outings. Its DOT-certified ABS shell and fully vented, high-density EPS liner combine a defined safety standard with airflow, while the detachable visor can be removed for rides when it is not needed.
The fully vented EPS liner and front-and-back air vents support airflow through the helmet, a useful feature during active dirt-bike or motocross riding. When the interior needs care, the pads can be removed and washed; the additional verified information describes buckles on the liners for removal. The visor also detaches, and its screws can be rotated to remove or reinstall the shield. That adjustability lets riders change the setup for sun protection or days without the visor.
- DOT and FMVSS-218 compliance
- Front and rear vents with a vented EPS liner
- Detachable, washable inner pads
- Removable visor for adaptable setup
- Its listed weight is 1.88 kg, which may matter to riders seeking a lighter helmet.
Skip it if you prioritize a lower listed helmet weight; the OUMURS 806 is specified at 1,420 g, compared with this ILM’s 1.88 kg.
The ILM 128S suits dirt-bike riders who value removable, washable padding and a visor they can take off between rides. Its ventilation supports airflow, but riders sensitive to helmet weight should consider the listed 1.88 kg.
Full product details
| Brand | ILM |
|---|---|
| Color | Matte Black |
| Compatible with Vehicle Type | Dirt Bike |
| Item Weight | 1.88 kg |
| Manufacturer | ILM |
| Part Number | 128S-MB-L |
| Material | Acrylonitrile Butadiene Styrene (ABS), Expanded Polystyrene (EPS) |
| Model | 128S |
| Model Number | ILM-128S-ADULT |
| Style Name | off-road-motorcycles |
Listed on Amazon as: ILM Adult Dirt Bike Helmets Motocross ATV Dirtbike BMX MX Offroad Full Face Motorcycle Helmet, DOT Approved Model 128S (Matte Black, Adult-L)
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#2 · Mips Safety System
2. Fox Racing V1
- Material Type: Acrylonitrile Butadiene Styrene (ABS)…
- Compatible with Vehicle Type: Off-Road Bike
- Weight: 1 kg
Best for: Riders prioritizing Mips and certifications.
Why it ranks #2: This off-road helmet lists DOT, FMVSS-218 and ECE22.06 compliance, plus Mips and adult sizing from XS through XXL.
Mips adds a low-friction layer between the head and helmet, making the Fox Racing V1 a clear choice for riders seeking that specified impact-management feature. It also meets FMVSS 218, DOT, and ECE22.06 standards, with youth and adult sizes listed from YS–YL and XS–XXL for a broad selection range.
The Multi-Directional Impact Protection System uses a low-friction layer between the helmet and the head, the product’s defining feature for buyers comparing protective technologies. Its listed FMVSS 218, DOT, and ECE22.06 certifications give several recognized standards to consider. Sizing covers youth YS through YL and adult XS through XXL, which supports selection across those stated categories. The included-components listing names the helmet itself, so riders can choose compatible goggles and other gear separately.
- Mips low-friction layer
- Meets FMVSS 218
- Meets DOT and ECE22.06 standards
- Youth and adult sizes listed
- The included-components listing names the helmet only, with no goggles or gloves included.
Skip it if you want an accessory bundle with goggles and gloves; the QSTK kit lists both, along with a face mask.
The Fox Racing V1 is suited to off-road riders who prioritize Mips and the listed DOT, FMVSS 218, and ECE22.06 standards. Its youth and adult size ranges offer choice, but accessories are not listed as included.
Full product details
| Brand | Fox Racing |
|---|---|
| Color | Ash |
| Compatible with Vehicle Type | Off-Road Bike |
| Included Components | Helmet |
| Item Weight | 1 kg |
| Manufacturer | Fox Racing |
| Part Number | 31369-469 |
| Material | Acrylonitrile Butadiene Styrene (ABS), Expanded Polystyrene (EPS) |
| Model | Unisex V1 Motocross Dirt Bike Helmet |
| Model Number | 31369-469 |
| Style Name | Unisex V1 Motocross Dirt Bike Helmet |
| Warranty Description | Limited Warranty |
Listed on Amazon as: Fox Racing Unisex V1 Motocross Dirt Bike Helmet
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#3 · Complete Riding Kit
3. Oumurs 806
- Material Type: Acrylonitrile Butadiene Styrene (ABS)…
- Compatible with Vehicle Type: ATV, UTV
- Weight: 1420 g
Best for: Riders choosing by head circumference.
Why it ranks #3: A DOT FMVSS-218 ABS-and-EPS helmet for dirt bike and ATV use, supplied with goggles, gloves and a mask across four adult size ranges.
Four adult size ranges, from M through XXL, give the OUMURS 806 a clearly stated circumference guide for riders selecting a full-face dirt bike helmet. Its DOT FMVSS-218-certified ABS shell and EPS lining are paired with goggles, a mask, and gloves, making this a bundled option for dirt-bike, ATV, or UTV use.
The size chart maps M to 570–580 mm and continues through XXL at 630–640 mm, helping buyers compare their head circumference with the listed ranges before choosing. The ABS shell and EPS lining form the stated helmet construction, while DOT FMVSS-218 certification identifies its safety standard. Goggles, a mask, and a pair of gloves are included, so the package covers several riding accessories without needing to assemble them separately. Its listed vehicle compatibility includes ATV and UTV as well as dirt-bike use.
- Four adult sizes from M to XXL
- Published head-circumference ranges
- DOT FMVSS-218 certification
- Includes goggles, mask, and gloves
- The listed weight is 1,420 g, a consideration for riders prioritizing a lighter helmet.
Skip it if you need a helmet below 1,420 g; the ILM Model 128S is listed at 1.88 kg, so compare weights carefully before deciding.
Consider this OUMURS for adult dirt-bike, ATV, or UTV riders who want a circumference-based size chart and bundled riding accessories. Choose carefully from its four listed size ranges, since the chart is central to selecting the right size.
Full product details
| Brand | Oumurs |
|---|---|
| Color | Crazy Blue |
| Compatible with Vehicle Type | ATV, UTV |
| Included Components | 1 Pair Gloves, 1 x Dirt Bike Helmet, 1 x Goggles, 1 x Mask |
| Item Weight | 1420 g |
| Manufacturer | Oumurs |
| Part Number | D001TY06331MB |
| Material | Acrylonitrile Butadiene Styrene (ABS), Expanded Polystyrene (EPS) |
| Model | OUMURS 806 |
| Model Number | OUMURS 806 |
| Style Name | sporty |
| Warranty Description | 60 Days |
Listed on Amazon as: OUMURS Adult Dirt Bike Helmet DOT Approved, Full Face Motocross Helmets
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#4 · Multi-Vent Design
4. TRIANGLE AF-10A
- Material Type: Acrylonitrile Butadiene Styrene (ABS)…
- Compatible with Vehicle Type: ATV, Go-Kart, Motorcycle, UTV
Best for: Ventilation-focused ATV and UTV riders.
Why it ranks #4: Its DOT-listed ABS shell and EPS liner suit off-road use, while chin, side, top and back vents and included goggles add practical detail.
Chin, side, top, and back vents give the TRIANGLE AF-10A multiple listed airflow entry points for riders who want ventilation across the helmet. Its DOT-certified ABS shell and high-density EPS impact-absorbing liner provide the stated protective construction, and the included goggles and gloves add useful riding accessories to the package.
The vent positions at the chin, sides, top, and back are described as drawing fresh air into an internal circulation system, which can support comfort during a ride. A high-strength ABS shell and high-density EPS liner form the stated helmet construction, while DOT certification identifies its safety standard. The listed compatibility spans ATV, go-kart, motorcycle, and UTV riding. Since goggles and gloves are included, buyers can keep those accessories together with the helmet rather than source them separately.
- DOT certification
- High-strength ABS shell and high-density EPS liner
- Chin, side, top, and back vents
- Goggles and gloves included
- The listed included accessories are goggles and gloves; no mask is listed in the package contents.
Skip it if you want a listed mask bundled with your helmet; the QSTK kit includes a face mask along with goggles and gloves.
The TRIANGLE AF-10A fits riders seeking a ventilated DOT-certified helmet for ATV, UTV, motorcycle, or go-kart use. Its included goggles and gloves suit buyers wanting those accessories, while the package listing does not include a mask.
Full product details
| Brand | TRIANGLE |
|---|---|
| Color | Black Red |
| Compatible with Vehicle Type | ATV, Go-Kart, Motorcycle, UTV |
| Included Components | Gloves, Goggle |
| Manufacturer | TRIANGLE |
| Part Number | AF-10A-BR-S |
| Material | Acrylonitrile Butadiene Styrene (ABS), Expanded Polystyrene (EPS) |
| Model | AF-10A-BR-S |
| Model Number | AF-10A |
| Warranty Description | 1 YEAR |
Listed on Amazon as: TRIANGLE Adult Dirt Bike Helmet Full Face Motocross Helmets DOT Certified
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#5
5. QSTK Full Face Helmet
- Material Type: Acrylonitrile Butadiene Styrene (ABS)
- Compatible with Vehicle Type: ATV
Best for: Riders wanting a bundled kit.
Why it ranks #5: This DOT FMVSS-218 ABS full-face helmet targets ATV and motocross riders and includes goggles, gloves and a mask with an adjustable visor.
The QSTK pairs a DOT-certified full-face helmet with goggles, gloves, and a face mask, so riders can start with several off-road essentials in one kit. Its ABS shell and shock-absorbing EPS liner are specified for ATV, motocross, off-road, and downhill riding, with an adjustable visor for changing sun exposure.
The high-impact ABS shell and EPS foam liner provide the helmet’s stated protective construction, while the DOT FMVSS-218 certification gives buyers a clear safety-standard reference. Intake and exhaust vents work together to channel air, which the listing says helps reduce fogging and heat during rides. The included goggles, gloves, and mask create a ready-to-use set of accessories, and the adjustable visor lets riders alter its position for their needs. Consider the bundle if those separate pieces are useful.
- DOT FMVSS-218 certification
- ABS shell and shock-absorbing EPS liner
- Intake and exhaust ventilation system
- Includes goggles, gloves, and face mask
- The kit’s included pieces add several separate items to carry and store.
Skip it if you want a helmet-only purchase; this package includes goggles, gloves, and a face mask alongside the helmet.
A practical choice for ATV and off-road riders who want a DOT-certified full-face helmet with several accessories in the same kit. It suits buyers who will use the goggles, gloves, and mask, and who value an adjustable visor.
Full product details
| Brand | QSTK |
|---|---|
| Color | BLACK |
| Compatible with Vehicle Type | ATV |
| Included Components | Helmet Shell,Face mask, gloves, goggles |
| Manufacturer | QSTK |
| Material | Acrylonitrile Butadiene Styrene (ABS) |
| Model | Black Striped |
| Warranty Description | 2 Year Manufacturer |
Listed on Amazon as: Full Face Dirt Bike Helmet DOT Certified – Complete Adult ATV Helmet Kit with Goggles, Gloves & Mask, Adjustable Visor, Quick Release
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#6
6. 1Storm HF801
- Material Type: Thermoplastic
- Compatible with Vehicle Type: ATV, UTV
- Weight: 4 lb
Best for: Riders wanting washable padded interiors.
Why it ranks #6: The motocross and ATV helmet is DOT-approved to FMVSS-218 and offers a thermoplastic shell with removable, washable padding.
Removable, washable padding gives the 1Storm HF801 a clear maintenance advantage for riders who want to clean the helmet interior after use. The racing-style full-face model combines a thermoplastic alloy shell with a cushioned interior and meets DOT and FMVSS 218 requirements, with the listed size L fitting a 57–58 cm circumference.
The removable padding can be washed, which gives owners a straightforward way to maintain the interior over time. Its heavily cushioned lining is specified for comfort, while the aerodynamic thermoplastic alloy shell supplies the outer construction. DOT approval and FMVSS 218 compliance provide the model’s stated safety credentials. The published size L range of 57–58 cm gives a concrete point of reference for selection, and the listing identifies ATV and UTV compatibility for riders considering those uses.
- DOT approved and meets FMVSS 218
- Removable, washable padding
- Heavily cushioned interior
- Size L specified for 57–58 cm circumference
- The supplied size detail lists size L only, so buyers should check the available size selection.
Skip it if you need a published range covering multiple sizes; the OUMURS 806 lists adult sizes M through XXL with circumference measurements.
The 1Storm HF801 fits ATV or UTV riders seeking a racing-style helmet with washable padding and a cushioned interior. Its supplied size detail centers on L at 57–58 cm, so size selection deserves attention.
Full product details
| Brand | 1Storm |
|---|---|
| Color | Matt Black |
| Compatible with Vehicle Type | ATV, UTV |
| Item Weight | 4 pounds |
| Manufacturer | Power Gear Motorsports |
| Part Number | HF801_MattBlack |
| Material | Thermoplastic |
| Model | HF801_MattBlack |
| Model Number | HF801 |
| Style Name | Racing |
Listed on Amazon as: 1Storm Adult Motocross Helmet BMX MX ATV Dirt Bike Four Wheeler Quad Motorcycle Full Face Helmet Racing Style: HF801 Matt Black
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#7
7. O'Neal 1SRS
- Material Type: Polyester
- Compatible with Vehicle Type: Motorcycle
- Weight: 1500 g
Best for: Off-road riders preferring a simple helmet.
Why it ranks #7: This off-road-specific helmet includes intake and exhaust vents, but the supplied details do not specify a safety certification or shell material.
Intake and exhaust vents are the O’Neal 1SRS’s clearest practical feature, directing airflow through this off-road helmet for ventilation and cooling. The listing identifies a 1,500 g helmet made for motorcycle use, with a black finish and a single helmet included, keeping the package focused on the core piece of gear.
The intake and exhaust vents provide the listed ventilation and cooling function, a useful consideration for off-road riders during active use. Its 1,500 g stated weight gives buyers a concrete figure to compare when considering helmet heft. The 1SRS is listed for motorcycle compatibility and comes as a helmet-only package, so riders can choose goggles and other accessories separately. The product information emphasizes engineering, comfort, safety, and style, but does not provide additional construction details to evaluate here.
- Intake and exhaust ventilation
- Listed weight of 1,500 g
- Off-road style
- Helmet included as the core item
- The listed package includes the helmet only, not goggles or gloves.
Skip it if you want goggles and gloves included; the CARTMAN Matte Black helmet package lists goggles, a windproof cover, and two pairs of gloves.
The O’Neal 1SRS suits off-road riders who want a helmet-focused purchase with intake and exhaust ventilation. Buyers who need bundled goggles or gloves should account for the helmet-only included-components listing.
Full product details
| Brand | O'NEAL |
|---|---|
| Color | Black |
| Compatible with Vehicle Type | Motorcycle |
| Included Components | Helmet |
| Item Weight | 1500 g |
| Manufacturer | O'Neal |
| Part Number | 0632-115 |
| Material | Polyester |
| Model | 1SRS Helmet Solid |
| Model Number | 0632-115 |
| Style Name | Off-Road |
| Warranty Description | See Manufacturer Site |
| Additional Information | Important Information Proposition 65 Warning for California Consumers WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov |
Listed on Amazon as: O'Neal 1SRS Adult Dirt Bike Helmet
View on AmazonWhy it ranks #8: An explicitly ATV and dirt-bike-oriented DOT and FMVSS-218 helmet with a washable liner, adjustable visor and included goggles, windproof cover and gloves.
A removable, washable liner makes the CARTMAN full-face helmet easier to maintain between rides, while its listed kit also includes goggles, a windproof cover, and two pairs of gloves. DOT and FMVSS-218 certification, an ABS shell, and an adjustable sun visor add the key construction and riding details buyers may want to weigh.
CARTMAN lists sizes S through XL and a head-circumference range of 21.3–24 inches, giving buyers a defined range to compare when selecting a fit. The adjustable chin strap and removable washable liner support fit adjustment and interior upkeep. Its aerodynamic shape is described as minimizing wind resistance and noise, and the adjustable sun visor offers a way to manage sun exposure. The included goggles, windproof cover, and two pairs of gloves make this a notably accessory-rich package.
- DOT and FMVSS-218 certification
- Removable, washable liner
- Head-circumference range of 21.3–24 inches
- Includes goggles, windproof cover, and two pairs of gloves
- The stated head-circumference range ends at 24 inches, limiting its listed fit range.
Skip it if you need a listed fit above 24 inches; the OUMURS 806 chart extends through XXL, with a stated range up to 640 mm.
This CARTMAN suits riders who want a washable liner, adjustable sun visor, and a bundle of riding accessories. Check the stated 21.3–24-inch circumference range against your needs before choosing this full-face ATV or dirt-bike helmet.
Full product details
| Brand | CARTMAN |
|---|---|
| Color | Black |
| Included Components | 1 piece of protective goggles, 1 piece of windproof cover, 2pcs gloves |
| Inner Material | Polyester |
| Item Dimensions | 14 x 10.01 x 10 inches |
| Item Weight | 1.52 kg |
| Manufacturer | CARTMAN |
| Model | XL |
| Outer Material | Acrylonitrile Butadiene Styrene (ABS) |
| Recommended Uses | Motorcycling |
| Size | X-Large |
| Special Feature | Adjustable Strap |
| Warranty Description | 1 Year |
Listed on Amazon as: CARTMAN Matte Black Adult Full Helmet X-Large, DOT Approved ATV Dirt Bike
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#9
9. ILM 606V
- Material Type: Acrylonitrile Butadiene Styrene (ABS)
- Compatible with Vehicle Type: ATV, Motorcycle
- Weight: 1.71 kg
Best for: Dual-sport riders wanting visor options.
Why it ranks #9: It is DOT-approved and works for ATV and dual-sport riding, with dual visors; the listing advises choosing one size up.
A wide-angle face shield and a separate inner tinted visor give the ILM 606V distinct options for managing vision and sunlight on the ride. The DOT-approved dual-sport helmet also has a rotatable sun visor, and its detachable shield and visor allow it to be configured for full-face, dual-sport, or off-road bicycle use.
The wide-angle lens is specified to increase peripheral vision, while the inner tinted visor and adjustable sun visor offer additional ways to manage sunlight. Because the face shield and sun visor detach, riders can change the helmet configuration for different listed uses, including full-face, dual-sport, and off-road bicycle riding. An aerodynamic air-intake system brings fresh air into the helmet. The stated DOT and FMVSS-218 compliance provides a clear safety-standard reference for riders considering the model.
- DOT and FMVSS-218 compliance
- Wide-angle face shield
- Inner tinted visor and adjustable sun visor
- Detachable visor and face shield
- The listing says this helmet runs smaller than regular sizing and recommends choosing one size up.
Skip it if you want a regular-size fit without sizing up; the ILM 128S listing does not give the same smaller-than-regular fit warning.
This ILM is suited to dual-sport riders who want a wide-angle shield and multiple sun-visor options in a configurable helmet. Take its stated smaller-than-regular sizing into account when choosing a size.
Full product details
| Brand | ILM |
|---|---|
| Color | Green |
| Compatible with Vehicle Type | ATV, Motorcycle |
| Included Components | liner |
| Item Weight | 1.71 kg |
| Manufacturer | ILM |
| Part Number | ILM-606V |
| Material | Acrylonitrile Butadiene Styrene (ABS) |
| Model | 606V |
| Model Number | ILM-606V |
| Style Name | Sporty |
| Warranty Description | 2 Year Manufacturer |
| Additional Information | Important Information Toy Safety Our recommended age: Manufacturer's minimum age: not_suitable_under_14_years |
Listed on Amazon as: ILM DOT Motorcycle Dual Sport Dirt Bike Full Face Helmet ATV Men Women 606V
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#10
10. O'Neal Sierra
- Material Type: Acrylonitrile Butadiene Styrene (ABS)
- Compatible with Vehicle Type: ATV, PWC, off-road-motorcycles…
- Weight: 3.5 lb
Best for: Adventure riders wanting an integrated shield.
Why it ranks #10: This DOT-certified ABS full-face helmet supports off-road use, but its stated street, enduro and adventure focus is less specific to dirt-bike riding.
An integrated face shield gives the O’Neal Sierra a ready-to-use visor setup for riders moving between off-road and on-road adventures. Its ABS shell, moisture-wicking removable liner, and padded chin strap with a double-D safety lock add practical details for comfort, interior care, and fastening during rides.
The integrated face shield provides a built-in visor option, while the product information also describes the shield as height adjustable for street, enduro, and adventure riding. Its air-channeled liner wicks moisture and can be removed and washed, supporting upkeep after a ride. The ABS shell is listed at 1,590 g (with a 50 g tolerance), and the padded chin strap uses a double-D safety lock. Vehicle compatibility spans ATV, PWC, off-road, cruiser, and touring motorcycles.
- Integrated, height-adjustable face shield
- Moisture-wicking, removable, washable liner
- Padded chin strap with double-D safety lock
- ABS shell and DOT certification
- The listed weight is 1,590 g with a 50 g tolerance, a consideration for weight-conscious riders.
Skip it if you want a listed helmet below 1,500 g; the O’Neal 1SRS is specified at 1,500 g, though compare each model’s fit and features too.
The Sierra suits adventure, enduro, and mixed on/off-road riders who want an integrated shield and washable moisture-wicking liner. Its listed 1,590 g weight is worth considering if helmet weight is a priority.
Full product details
| Brand | O'NEAL |
|---|---|
| Color | Flat White |
| Compatible with Vehicle Type | ATV, PWC, off-road-motorcycles, street-cruiser-motorcycles, street-touring-motorcycles |
| Included Components | helmet |
| Item Weight | 3.5 pounds |
| Manufacturer | O'Neal |
| Part Number | 0817-514 |
| Material | Acrylonitrile Butadiene Styrene (ABS) |
| Model | Sierra R Helmet |
| Model Number | 0817-514 |
| Style Name | Full-face-helmet-style |
| Warranty Description | See Manufacturer |
| Additional Information | Important information Safety Information DOT Certified |
Listed on Amazon as: O'Neal Sierra Helmet, Flat White LG
View on AmazonAvoiding fit and visor surprises
Fit mismatches and visor expectations are practical failure points to check before buying. The Oumurs 806 gives adult circumference ranges from 570–580 mm for M through 630–640 mm for XXL, while CARTMAN lists a 54–61 cm range across S to XL. Those ranges are not interchangeable size charts, so measure your head and compare it with the specific model’s guidance rather than assuming your usual letter size carries over.
The ILM 606V listing explicitly says it runs smaller than regular and recommends choosing one size up. Visor design also varies: the ILM 128S has a detachable visor, whereas the ILM 606V provides dual visors and a tinted inner visor.
A visor setup that helps with sun exposure may differ from what you want for goggles or your particular riding conditions; check the intended configuration and compatibility before ordering.
Understand what certification listings establish
A certification label is a useful starting point, but it does not answer every question about suitability, fit or protection. The supplied listings identify DOT or FMVSS-218 claims for several models, and the Fox Racing V1 additionally lists ECE22.06 and Mips. These are product-page claims, not comparative test results in this roundup, so they do not establish that one helmet performs better than another in a crash.
The O’Neal 1SRS entry describes ventilation and off-road use but supplies no certification detail here; that absence in the provided data should prompt a check of the exact model’s current documentation, not an assumption either way. Likewise, a bundle containing gloves, goggles or a mask does not tell you whether those pieces fit your face, goggles or riding setup.
Confirm the exact model, certification marking, size and included components before relying on a listing.
How to Choose a Dirt Bike Helmet
Certification and impact features
Look for a clearly stated certification that matches your intended riding, and distinguish that from features that are not certifications. The ILM 128S, Oumurs 806, TRIANGLE AF-10A and 1Storm HF801 list DOT or FMVSS-218 claims; the Fox Racing V1 lists DOT, FMVSS-218 and ECE22.06, as well as Mips. That makes the Fox a relevant pick if you specifically want its listed impact-management system and additional certification claim, while riders seeking a straightforward motocross helmet can compare the DOT-listed ILM or Oumurs.
The O’Neal 1SRS listing does not provide certification details in the supplied data, so verify the exact helmet before choosing it on safety grounds.
Fit range and sizing guidance
Choose by your measured head circumference and the exact model’s size chart, not by a size label alone. Oumurs lists M at 570–580 mm, L at 590–600 mm, XL at 610–620 mm and XXL at 630–640 mm. CARTMAN gives an overall 54–61 cm range across S to XL, while Fox Racing V1 is offered in adult XS–XXL without circumference values in the supplied details.
The ILM 606V specifically runs smaller than regular and advises sizing up. Oumurs suits shoppers who want clearly stated circumference bands; anyone considering the 606V should account for its fit warning, and all buyers should confirm sizing for the exact variant.
Ventilation and useful accessories
Consider whether airflow, removable padding or a bundled accessory set matters most for your riding routine. The ILM 128S has front and rear vents, a vented EPS liner and washable pads; the TRIANGLE AF-10A lists chin, side, top and back vents. O’Neal 1SRS specifies intake and exhaust vents but provides fewer construction details in this data.
Oumurs, QSTK and CARTMAN include combinations of goggles, gloves, masks or a windproof cover, while the Fox Racing V1 includes the helmet only. Riders who already own compatible gear may prefer the ventilation-focused descriptions; new riders may value a listed bundle, but should confirm accessory fit and contents before purchase.
Which Dirt Bike Helmet Should You Choose?
Choose the ILM 128S if you want a dirt-bike-focused helmet with a DOT and FMVSS-218 listing, vented EPS liner, washable pads and detachable visor. Pick the Fox Racing V1 if Mips, adult XS–XXL availability and its DOT, FMVSS-218 and ECE22.06 claims matter most. For a bundled setup, the Oumurs 806 includes goggles, gloves and a mask, with adult circumference ranges from M through XXL.
The TRIANGLE AF-10A is a fit if its multi-position vents and included goggles stand out. Consider the ILM 606V for dual-sport flexibility, but heed its one-size-up warning.
If you favor a specific fit or accessory combination, compare the product listing for that exact variant before ordering.
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Frequently Asked Questions
How should I measure my head and choose between helmet sizes?
Measure around the widest part of your head, just above your eyebrows and ears, and compare that circumference with the sizing chart for the exact helmet and variant. A secure fit should feel evenly snug without painful pressure or shifting. If you fall between sizes, follow the maker’s fitting guidance and verify the listing.
How often should I replace a dirt bike helmet after a crash or routine use?
Replace a helmet after a significant impact, even if damage is not obvious, and follow the manufacturer’s guidance for routine replacement. Inspect it regularly for cracks, crushed or loose liner areas, damaged straps, and worn fasteners. The product details here do not give a universal replacement interval, so check the specific maker’s instructions.
Can I wear a motocross helmet on public roads, and what local rules apply?
It depends on the helmet’s certification, design, and the rules where you ride. Some listings here state DOT approval or certification, but that alone does not establish compliance with every local requirement or make every motocross helmet road-legal. Check current local laws and the exact helmet’s certification before riding on public roads.
What should I check when comparing included accessories?
Confirm which items are included with the exact product variant before ordering. The Oumurs 806 is described as including goggles, gloves, and a mask; the TRIANGLE AF-10A listing is noted for included goggles. Accessories can vary by listing or variant, so verify the product details rather than assuming a bundle applies to every option.
When is a dual-sport helmet a better fit than a motocross-focused option?
Consider a dual-sport option if you want flexibility across different riding settings, while matching the helmet to your fit and intended use. The ILM 606V is identified here as a dual-sport choice, and its listing carries a one-size-up warning. Check the exact variant’s sizing guidance before deciding.
Final Words
For dedicated dirt-bike and motocross use, the ILM 128S is the strongest match in this roundup: its listing states DOT certification and FMVSS-218 compliance, and it includes a vented EPS liner, washable pads, and a detachable visor. Choose the Fox Racing V1 if Mips is a priority, or the Oumurs 806 for its listed accessory bundle. Before ordering, confirm the exact variant’s fit, certification, and included items.



