Thor Motocross Helmet

The Thor S21 Reflex Motocross Helmet combines performance, comfort, and protection for riders who demand the best. Designed in collaboration with professional riders, it delivers race-ready features that adapt to every trail and riding condition.

First, the dual-density EPS liner absorbs impacts progressively, reducing force transfer and increasing safety. In addition, the injection-molded polycarbonate/ABS shell provides strong, durable protection while remaining lightweight for maximum control.

Moreover, ventilation plays a key role in rider comfort. Extensive internal air passages channel airflow efficiently, while the hi-flow mouth vent with filter keeps debris out. At the same time, the fully adjustable visor allows optimal coverage, and the flexible rubber nose piece deflects roost without compromising comfort.

Furthermore, the rear shell design secures goggles in place, preventing slippage during jumps or high-speed maneuvers. Combined with DOT and ECE 22.05 approval, the S21 Reflex meets strict safety standards for local and international riding.

Finally, Thor balances advanced engineering with practical features to create a helmet that supports both everyday training and competitive performance. Whether hitting single-track, motocross tracks, or rugged trails, this helmet keeps riders protected, cool, and confident.

Key Features

• Dual-density EPS liner for progressive impact absorption
• Injection-molded polycarbonate/ABS shell for durable protection
• Fully adjustable visor for optimal coverage
• Hi-flow mouth vent with debris filter
• Flexible rubber nose piece to deflect roost
• Rear shell designed for secure goggle placement
• Extensive ventilation for maximum cooling
• DOT & ECE 22.05 approved

The Thor S21 Reflex Motocross Helmet combines safety, airflow, and versatility, making it the perfect choice for motocross riders seeking control, comfort, and confidence at every ride.

Sizing

To determine which helmet size fits you best, measure the widest circumference of your head using a flexible measuring tape or piece of string; approximately 2cm above your eyebrows and ears as illustrated below. If your head measurement falls between two sizes, it is generally recommended to select the smaller of the two.

For maximum safety and comfort, take note of the following points when fitting the helmet (and securely fastening the chin strap):

• Helmet may take some effort to slide over your head, but should not be overly difficult
• Should fit snuggly around the crown of your head without creating uncomfortable pressure points
• The top padding presses on the top of your head
• The cheek pads press against your cheeks, so that your teeth touch the inside of your cheeks when opening / closing your mouth
• There should be no space to slide two fingers between the helmet and your temple
• Hold the helmet on either side and without moving your head, try to move the helmet up and down, and side to side. It should not be easy to move and you should feel the skin of your head and face being pulled
• Your eyes should be located in the center of the helmet's viewpoint