Alpinestars SM-5 Course Blue
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Add to compareQuick 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.
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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Experience the perfect blend of race-ready performance and everyday versatility with the Alpinestars SM-5 Course Blue. Designed for riders who demand precision engineering without compromising on style, this helmet features a sleek, aerodynamic profile that cuts through the wind while delivering superior cooling through strategically placed vents. The vibrant blue finish is complemented by premium graphics that make a statement on the track or the street.
Rider Profile & Intended Use
Where to buy
Price History & Trends
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Product Concept & Specifications
Alpinestars (Italy)Engineering & Technical Analysis
The Alpinestars SM-5 Course Blue utilizes a multi-density EPS liner system designed to optimize energy absorption across varying impact vectors. The outer shell is constructed from high-grade carbon fiber composite, offering an exceptional strength-to-weight ratio that reduces rotational forces during lateral impacts while maintaining structural rigidity. Integrated with the MIPS (Multi-directional Impact Protection System) technology, the helmet features a low-friction slip plane that allows the inner liner to rotate independently of the head upon oblique impacts, significantly reducing the risk of traumatic brain injury.
Fit & Shell Structure
Intermediate Oval Shape
Balanced oval fit: standard ergonomic curvature fitting 80%+ of riders.
Safety & Certifications
Acoustics & Aerodynamics
Technology & Convenience
Interactive Size & Fit Finder
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.
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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.