Helmet Alpinestars SM5 Action 2 Black Yellow Red

Elevate your riding experience with the Alpinestars SM5 Action 2 helmet.

Specifications:

• Clavicle protection and visor release: a raised, padded area designed to effectively reduce forces transmitted to the clavicle, while a patented visor release system ensures the visor detaches with the correct amount of preset force, regardless of impact angle.
• Optimized shell volume: the lower shell volume has been revised in sizes M, L, XL, and 2XL to make it approximately 3% wider, making helmet donning and removal easier; this increased volume has also improved impact management, now sitting 44% below the regular speed threshold.
• ECE 22.06 performance: for the new ECE 22.06 standard, the SM5 achieves a regular speed impact rating 44% better than the current figure of 33%, as well as a result 32% better for low-speed linear impact and 31% better for high-speed linear impact than the current standard.
• Multi-density inner liner: ensures the correct density in each area to enhance impact absorption.
• Redesigned chin bar profile: the base area has been specifically sculpted to create an elevated relief section that clears the clavicle, with a new softer EPS liner extending beyond the shell itself and covered by a more flexible rubber compound, reducing the likelihood of clavicle injury.
• Ventilation system: maximizes airflow and thermal exchange via multiple air intakes and exhaust ports.
• Lightweight: the ECE version of the SM5 helmet weighs 1,350 grams in size M, and 1,420 grams in the ECE DOT version with visor.
• Visor design: developed to direct air toward the ports and improve airflow.
• Available versions: the SM5 is available in 2 versions, ECE R 22.06 and ECE R 22.06/DOT.
• The inner and outer surfaces are designed to minimize the effects of oblique impacts. To help combat and mitigate these rotational impact forces, Alpinestars has developed proprietary technology by creating a low-friction surface on the interior face of the EPS liner. For the ECE 22.06 standard, which now includes rotational oblique impact rating, the SM5 scores 70% below the new regulation.
• The patented visor release system ensures the visor releases with the correct amount of preset force, regardless of impact angle.
• The lightweight outer shell is constructed from technologically advanced, impact-resistant thermoplastic in three anatomical shell sizes, plus three individual EPS inner liner sizes, with an inner liner and cheek pad combination to offer 6 unique sizes and ensure the best fit and protection.
• The lightweight outer shell is constructed from technologically advanced, impact-resistant thermoplastic in three anatomical shell sizes, plus three individual EPS inner liner sizes, with an inner liner and cheek pad combination to offer 6 unique sizes and ensure the best fit and protection.