Alpinestars SM5 Corp Motorcycle Helmets

The Alpinestars SM5 helmet is the result of intensive engineering, designed to provide motocross riders with a premium balance of safety, weight, and comfort. Featuring a high-tech thermo-injected shell and multi-density protection, it is purposefully built for elite performance on the track.

Advanced Construction

• Impact Resistant Thermoplastic: Constructed from a technologically advanced polymer blend for optimal impact protection and minimal weight.

• Anatomical Shell Sizes: Available in three distinct outer shell sizes to ensure a perfect fit across the size range.

• 5-Density EPS Liner: Features a specialized inner liner with varying densities to ensure the right protection in the right areas.

• Optimized Sizing: Six unique sizes available through a combination of three EPS sizes and tailored cheek padding.

Key Performance Features

• Collarbone Protection: Engineered with a raised, padded area specifically designed to reduce force transmission to the collarbone.

• Patented Visor Release: A unique system that releases the visor with a pre-determined force regardless of the impact angle.

• Improved Shell Volume: Medium to 2XL sizes are 3% wider, making the helmet easier to put on and take off while improving impact management.

• Superior Aerodynamics: The visor is designed to direct air into intake ports for significantly enhanced cooling.

• Lightweight Performance: The ECE version weighs only 1,350 grams (Size Medium), reducing rider fatigue.

High-Level Protection & Safety

• ECE 22.06 Certified: Surpasses the latest safety standards with a 44% better regular-speed impact rating than standard requirements.

• Linear Impact Excellence: Scores 32% better in low-speed and 31% better in high-speed linear impacts compared to prevailing standards.

• Rotational Force Mitigation: Engineered low-friction surfaces on the inner EPS liner help minimize the effects of oblique and rotational impacts.

• Sculpted Chin Bar: The base area features a soft EPS liner and flexible rubber compound to reduce the risk of collarbone injuries.

• High-Flow Ventilation: Maximized heat exchange through multiple air inlets and exhaust ports for extreme temperature control.

Safety Certifications

• ECE R 22.06 Certified. 

• Rotational Oblique Impact Rated: Scores 70% under the new regulation standards.