Thor builds off-road helmets for riders who demand performance on the track and trail. The Reflex and Sector lines cover youth through adult sizing, with MIPS technology across key models to redirect rotational forces on impact. Built to ECE and DOT certifications, Thor helmets are a serious choice for MX and enduro.
Thor 2024 Reflex Cube Red/Black Helmet
Thor 2024 Reflex Cast White/Black Helmet
Thor 2023 Sector MIPS Runner Grey/Teal Helmet
Thor 2023 Sector Blackout Helmet
Thor 2023 Sector Chev Red/Navy Helmet
Thor 2024 Reflex Cube Grey/Orange Helmet
Thor 2024 Sector Chev Red/Navy Youth Helmet
Thor 2023 Sector Fader Orange/Magenta Helmet
Thor 2023 Reflex Accel Multi Helmet
Thor 2024 Reflex Blackout Helmet
Thor 2024 Reflex Cube Black/Mint Helmet
Thor 2023 Sector MIPS Runner Navy/White Helmet
Thor 2023 Sector MIPS Runner Red/Blue Helmet
Thor Off-Road Helmets: What You Need to Know Before You Buy
Thor produces dedicated off-road helmets across two core lines: the Reflex and the Sector. Both are purpose-built for motocross and off-road riding, featuring the wide visor peak, elongated chin port, and ventilation architecture that separates MX lids from road helmets. Here is how they compare.
Reflex vs Sector: Core Differences
| Feature | Thor Reflex | Thor Sector |
|---|---|---|
| Target rider | Competitive / advanced | Club / recreational |
| Shell construction | Composite fibreglass | Polycarbonate |
| MIPS availability | Selected models | Selected models (Sector MIPS) |
| Certifications | DOT / ECE 22.06 | DOT |
| Adult sizing range | XS to 2XL | XS to 2XL plus youth |
MIPS: Why It Matters
MIPS (Multi-directional Impact Protection System) adds a low-friction liner that moves independently of the outer shell by approximately 10 to 15 mm during an angled impact. Angled impacts account for the majority of real-world crashes, making MIPS a meaningful upgrade over a standard EPS liner alone. The Sector MIPS and select Reflex models carry this system.
Certifications Explained
ECE 22.06 is the current European standard, replacing ECE 22.05, and includes rotational impact testing absent from many older standards. DOT FMVSS 218 is the US federal minimum. Both certifications are accepted by Australian road and racing authorities. For competitive MX events in Australia, verify your specific governing body's requirements before race day. The ECE 22.06 standard requires testing at 6 impact velocities, compared to 2 under ECE 22.05.
Youth Sizing
The Sector line extends to youth sizing, covering head circumferences from approximately 50 cm up through adult XS at 54 to 55 cm. Youth models include MIPS variants, ensuring younger riders have access to the same rotational impact protection technology as adults. Always measure head circumference in centimetres and cross-reference Thor's published size chart. Helmet fit should be snug with no pressure points after 30 minutes of wear.
Buying Guidance
Choose the Reflex if weight reduction is a priority and you ride regularly at competition pace. Its fibreglass composite shell is lighter than polycarbonate, reducing neck fatigue over long motos. Choose the Sector if you want a dependable, entry-accessible MX helmet with proven DOT certification and MIPS available at a practical entry point. Adult sizing runs XS through 2XL across both lines. Both lines are helmet-only: pair with goggles, a neck brace or collar, and a chest protector for complete off-road protection.
Frequently asked questions
What is the difference between the Thor Reflex and Thor Sector helmets?
The Reflex uses a composite fibreglass shell and targets competitive riders seeking a lighter lid. The Sector uses a polycarbonate shell and suits club and recreational riders. Both lines include MIPS variants for rotational impact protection.
Are Thor helmets approved for riding in Australia?
Yes. Thor Sector helmets carry DOT certification, and select Reflex models meet ECE 22.06, both of which are accepted by Australian road and state racing authorities. Always check your specific event rules for competition.
Do Thor helmets come in youth sizes?
Yes. The Thor Sector line includes dedicated youth sizing, covering head circumferences from approximately 50 cm upward. Youth Sector MIPS models are available, giving younger riders access to the same rotational impact protection as adults.