Alpinestars · SM5 · Alpinestars SM5
Alpinestars SM5 Matte Black
Quick Facts at a Glance
Verified Safety Snapshot
How this helmet’s verified certifications map to recognized safety homologations and crash testing.
Safety standards compliance is based on official manufacturer documentation and public safety laboratory test results. Always verify regional compliance labels on the physical helmet prior to use.
Verified Fit & Sizing Guide
Head shape profile matching and interactive size calculator based on verified manufacturer dimensions.
Alpinestars SM5 is a motocross/dirt bike helmet designed for off-road use. It features a multi-density EPS liner and an adjustable dial-fit system. The matte black finish is cosmetic.
How to measure
Wrap a cloth measuring tape around your head just above your eyebrows and ears. Pull the tape comfortably snug, read the length, and repeat for consistency.
Design Concept & Background
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Dominate the dirt track with the Alpinestars SM5 Matte Black, a helmet engineered where style meets uncompromising safety. This premium MX headgear features a sleek, aggressive matte finish that commands respect on the podium and the trail alike. Constructed with advanced composite materials, it delivers exceptional impact resistance without sacrificing lightweight agility. The integrated MIPS system provides critical protection against rotational impacts, ensuring you stay safe while pushing your limits at full throttle. Superior ventilation channels keep you cool during intense sprints, while the ergonomic fit ensures zero distraction. Whether you are racing in national championships or conquering local trails, the SM5 is the ultimate partner for serious riders who demand both performance and prestige.
Key Highlights:
Rider Profile & Intended Use
Where to buy
Price History & Trends
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Product Concept & Specifications
Alpinestars (Italy)Engineering & Technical Analysis
The SM5 utilizes Alpinestars' proprietary Multi-Directional Impact Protection System (MIPS) to mitigate rotational forces during high-speed impacts. Its aerodynamic shell design features a low-profile visor and optimized chin bar geometry, reducing wind turbulence while maintaining an open-face acoustic profile suitable for motocross environments.
Fit & Shell Structure
Intermediate Oval Shape
Balanced oval fit: standard ergonomic curvature fitting 80%+ of riders.
Safety & Certifications
Acoustics & Aerodynamics
Technology & Convenience
Regional Legality & Compliance
Certified for use in the United States; meets DOT FMVSS 218 standards.
Compliant with ECE 22.05 regulations for use in European markets.
Accepted for use in Canada under DOT standards.
Regional Legality Guidance
Interactive Size & Fit Finder
Alpinestars SM5 is a motocross/dirt bike helmet designed for off-road use. It features a multi-density EPS liner and an adjustable dial-fit system. The matte black finish is cosmetic.
How to measure
Wrap a cloth measuring tape around your head just above your eyebrows and ears. Pull the tape comfortably snug, read the length, and repeat for consistency.
Available Colors & Graphics
View on retailers
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Data Confidence & Verification Provenance
Helmetsan enforces field-level verification and multi-source cross-referencing. Unverified values are explicitly flagged rather than estimated.