Alpinestars · S-M5 Action
Alpinestars S-M5 Action Hi-Viz Gelb
Design Concept & Background
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Alpinestars S-M5 Action Hi-Viz Gelb is a high-performance motorcycle helmet engineered by Alpinestars to meet high standards of safety and comfort. Inspect its detailed design background and specifications below.
Rider Profile & Intended Use
Where to buy
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Amazon (US)
Store Profile
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$249.95 | ● In Stock | 1 second ago | Buy Now → |
Certified Alpinestars Stores in US
Price History
Product Concept & Specifications
Alpinestars (Italy)Engineering & Technical Analysis
Die S-M5 Action nutzt das proprietäre Multi-Directional Impact Protection System (MIPS) von Alpinestars, integriert in eine leichte Verbundstoffschale, um Rotationskräfte bei Offroad-Aufprallen zu minimieren. Die aggressive aerodynamische Konturierung reduziert Windturbulenzen bei hohen Geschwindigkeiten, während das umfangreiche Belüftungsnetzwerk die Wärmeableitung gewährleistet, ohne die strukturelle Steifigkeit zu beeinträchtigen.
Fit & Shell Structure
Intermediate Oval Shape
Balanced oval fit: standard ergonomic curvature fitting 80%+ of riders.
Safety & Certifications
Acoustics & Aerodynamics
Moderate Index: Standard wind noise suppression at highway speeds. High flow channels optimize high-velocity dynamic ventilation.
Technology & Convenience
Regional Legality & Compliance
Compliant with FMVSS 218 standards for off-road and street use where applicable.
Meets current ECE 22.06 safety regulations for motorcycle use.
Regional Legality Guidance
Interactive Size & Fit Finder
Designed for dirt/MX riding with high-visibility yellow color; specific fit details vary by head shape and size selection.
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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