SMK Allterra Solid GL120 Motocross/Enduro Helmet – Glossy White

The SMK Allterra Solid GL120 is an off-road motorcycle helmet in glossy white, designed for motocross, enduro, and other off-road riding. The open-face design allows the use of motocross goggles, and the extended chin guard provides additional protection when riding on more demanding terrain.

The helmet is made of durable EIRT thermoplastic and uses two outer shell sizes for a better fit for different head sizes. It is equipped with a removable and adjustable upper peak, an efficient ventilation system, a removable inner lining, and a secure Double-D Ring buckle. ECE 22.06 homologation confirms compliance with the current European safety standard.

Key Features

• ECE 22.06 Homologation – compliance with the current European safety standard for motorcycle helmets.
• Off-road design – suitable for motocross, enduro, and off-road riding.
• EIRT thermoplastic shell for effective protection and appropriately low weight.
• Two outer shell sizes for a better fit depending on the selected helmet size.
• Removable and adjustable upper peak for protection against sun, mud, and flying debris.
• Extra-wide eyeport allows the use of most motocross goggles.
• Channeled ventilation system with multiple intake and exhaust vents.
• Double-D Ring buckle for secure and reliable fastening.
• Removable and washable inner lining for easy cleaning and maintenance.
• Hypoallergenic and breathable interior with moisture-wicking properties.
• Unisex design – suitable for men and women.

Technical Specifications

Size Chart

To choose the correct size, measure your head circumference with a tape measure approximately one centimeter above your eyebrows and above your ears. The helmet should fit evenly across your entire head, but should not cause excessive pressure or move independently when you move your head.

What does ECE 22.06 homologation mean?

ECE 22.06 is the current version of the international safety standard UN Regulation No. 22 for protective motorcycle helmets. Homologation confirms that the helmet type has been tested according to prescribed procedures and meets the required conditions regarding protection, construction, fastening system, field of vision, and other safety features.

The ECE 22.06 standard uses more demanding and extensive tests than the previous ECE 22.05 version. Helmets are checked at different speeds and in multiple areas of the shell, which better assesses their performance in various types of road and off-road accidents.

What is checked under the ECE 22.06 standard?

• Impact energy absorption – checks how much energy the helmet transfers to the head upon impact.
• Impacts at different speeds – the helmet is tested at multiple load levels and not just at one speed.
• Multiple impact zones – different parts of the shell are tested, including additional randomly selected points.
• Oblique or rotational impacts – the stress that can cause rotational movement of the head is also assessed.
• Shell strength and internal protective layer – the ability of the construction to withstand prescribed loads is checked.
• Helmet stability on the head – the helmet must not easily come off or slip from the head during an accident.
• Buckle and chin strap strength – the fastening system must remain closed and properly positioned even under heavy loads.
• User's field of vision – the helmet's construction must not dangerously restrict vision while riding.
• Safety of additional equipment – accessories and attachment points must not reduce the helmet's protective properties.