The all-new Alpinestars Honda SM5 Helmet in Gloss White / Blue / Red is meticulously designed for MX riders seeking superior protection and comfort. This lightweight helmet features a thermo-injected shell crafted from a special polymer blend, engineered to balance impact protection with minimal weight. The inner liner is constructed from a 7-piece expanded polystyrene (EPS) system with five different densities, strategically placed for optimal impact absorption.

The outer shell is made from advanced impact-resistant thermoplastic, available in three anatomical sizes, and paired with three individual EPS liner sizes. This combination ensures six unique sizes for an ideal fit and maximum protection. The helmet includes a raised, padded area designed to reduce force transmission to the collarbone, and a patented visor release system that ensures the visor detaches with a precise amount of force regardless of the impact angle.

Improvements in the medium, large, XL, and 2XL sizes have increased the lower shell volume by approximately 3%, making the helmet easier to don and remove. This increase in volume also enhances impact management performance, achieving a 44% improvement over the regular-speed threshold. For the new ECE 22.06 standard, the SM5 demonstrates a 44% better regular-speed impact rating, a 32% better low-speed score, and a 31% better high-speed linear impact score compared to previous standards.

The multi-density inner liner ensures proper density placement for enhanced impact absorption. The redesigned chin bar features a sculpted base area to avoid collarbone contact, supplemented by a softer EPS liner extending beyond the shell and covered by a flexible rubber compound to reduce collarbone injury risk. The helmet’s patented visor release system guarantees the visor detaches correctly upon impact.

Ventilation is maximized through multi-air inlets and exhaust ports, with the visor designed to direct air into these ports for improved airflow. Additional features include the ERS Emergency Release System cheek pads and hydration hose routing loops for easy hydration system integration.

Both the inner and outer surfaces of the helmet are engineered to mitigate the effects of oblique impacts. Alpinestars’ proprietary low-friction technology on the inner surface of the EPS liner helps counter rotational impact forces. For the new ECE 22.06 standard, which now includes rotational oblique impact ratings, the SM5 scores 70% under the new regulation.

The Alpinestars Honda SM5 Helmet combines cutting-edge safety features, lightweight construction, and thoughtful design to deliver an exceptional riding experience, making it an essential choice for MX riders.

FEATURES

KEY FEATURES

• Lightweight outer shell is constructed from a technologically advanced impact resistant thermoplastic in three anatomical shell sizes, plus three individual EPS inner liner sizes with a combination of inner lining and cheek padding to offer 6 unique sizes and to ensure the best fitment and protection

PROTECTION

• An engineered raised area with padding effectively reduces the forces transmitted to the collarbone and a patented visor release system that ensures the visor is released with the correct pre-determined amount of force, irrespective of the angle of impact
• Revised the medium, large, XL, and 2XL lower shell volume to be around 3% wider to make the helmet easier to put on and take off, where the increase in helmet volume has also improved the impact management performance which is now 44% lower than the regular-speed threshold
• For the new ECE 22.06 standard, the SM5 achieves a 44% better regular-speed impact rating compared to the current 33% figure, as well as a 32% better low-speed, and 31% better high-speed linear impact score than the prevailing standard
• Multiple density inner liner to ensure the correct density in the correct area for enhanced impact absorption
• Redesigned chin bar’s new profile, where the base area has been specifically sculpted to give a relief section, raised to clear the collarbone, with a new softer EPS liner which extends beyond the helmet shell itself, and is covered by a more flexible rubber compound providing a reduced chance of any sort of collarbone injury
• Patented visor release system ensures the visor is released with the correct pre-determined amount of force, irrespective of the angle of impact
• Maximized ventilation and high levels of heat transfer exchange thanks to multi-air inlets and exhaust ports
• The visor has been designed to direct air into the ports for enhanced airflow.
• ERS Emergency Release System cheek pads
• Hydration hose routing loops to facilitate hydration system mounting

CONSTRUCTION

• The inner and outer surfaces are engineered to minimize the effects of oblique impacts. To help fight and mitigate those rotational impact forces, Alpinestars has designed a proprietary technology by creating a low friction surface on the inner surface of the EPS liner. For the ECE 22.06 standard, which now includes the rotational oblique impact rating, the SM5 scores 70% under the new regulation

SIZE GUIDE

Using a measuring tape, measure the head circumference at the head's widest point, just above the eyebrows and the ears.