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Alpinestars

阿尔派纳斯特斯SM-5珍珠白

DOT FMVSS 218 ECE 22.06

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Design Concept & Background

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阿尔派纳斯特斯SM-5珍珠白 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

Internal Fit Shape Intermediate Oval
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Price History

Product Concept & Specifications

Alpinestars (Italy)

Engineering & Technical Analysis

Alpinestars SM-5 利用多密度EPS衬层系统，旨在在不同冲击矢量下优化能量吸收。外壳由高强度碳纤维复合材料制成，提供比传统玻璃纤维结构更优的刚性与重量比率，增强结构完整性在高速冲击时，减少整体旋转质量。这种材料选择允许实现更激进的气动剖面而不损害安全标准。

Fit & Shell Structure

Intermediate Oval Shape

Balanced oval fit: standard ergonomic curvature fitting 80%+ of riders.

[MATR.SHEL] Shell Construction Carbon Fiber Composite Shell with EPS Liner Outer structural material
[PHYS.MASS] Measured Weight 1450g (3.2) Approximate medium size weight
[COVG.YEAR] Warranty 2 Manufacturer coverage duration
[OPER.ROLE] Primary Use Case All-round Sport Optimized riding orientation

Safety & Certifications

[SYS.CERT] Homologation DOT FMVSS 218, ECE 22.06 Certified safety standard
[SYS.PROT] Rotational Protection Standard EPS Mitigates rotational impact
[SYS.EQRS] Emergency Release Not Equipped Cheek pad quick removal
[SYS.LOCK] Retention Strap Quick-Release Buckle with D-Ring Chin strap buckle style

Acoustics & Aerodynamics

84 dB
Acoustics
7 /10
Ventilation

Quiet Index: Superior sound damping and isolated ear cavity structures. Good flow balance utilizing EPS exhaust ports.

[AERO.TEST] Wind Tunnel Tested No Optimized shell aerodynamics
[VISR.FOG] Pinlock Tech Not Included Anti-fog shield insertion

Technology & Convenience

[SYS.COMM] Comms Integration N/A Intercom cutout availability
[FIT.GLASS] Glasses Friendly No Inner lining eyewear grooves
[VISR.SYS] Visor Shield Tech Single Visor Integrated drop-down sun visor
[FIT.LINR] Removable Interior Partial / Fixed Washable lining modules

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