Alpinestars SMX-5R Carbon Fiber Helmet
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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 pinnacle of track performance with the Alpinestars SMX-5R, a helmet meticulously crafted for riders who demand uncompromising safety and aerodynamic efficiency. Featuring an all-carbon fiber shell, this lightweight powerhouse delivers superior impact protection without sacrificing the agility needed on the circuit. Its aggressive styling is matched by advanced ventilation channels that ensure optimal airflow, keeping you cool even during the most intense riding sessions.
Rider Profile & Intended Use
Where to buy
Price History & Trends
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Product Concept & Specifications
Alpinestars (Italy)Engineering & Technical Analysis
The Alpinestars SMX-5R utilizes a multi-density EPS liner system engineered to provide progressive energy absorption across varying impact vectors. The outer shell is constructed from a high-modulus carbon fiber composite, offering an exceptional strength-to-weight ratio that significantly reduces rotational forces during oblique impacts compared to traditional fiberglass constructions. Internal comfort is managed through a moisture-wicking, removable washable liner with integrated cheek pads designed to minimize pressure points while maintaining a secure fit.
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
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