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Alpinestars · SM5

Alpinestars SM5 Perlweiß

DOT ECE 22.05
Alpinestars SM5 Perlweiß
Alpinestars SM5 Perlweiß
Alpinestars SM5 Perlweiß

Design Concept & Background

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Alpinestars SM5 Perlweiß 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.

Key Highlights:

MIPS impact protection system High-impact polymer shell Intermediate oval head shape Advanced ventilation system Emergency release cheek pads Multi-density EPS liner Removable and washable interior

Rider Profile & Intended Use

Riding Style Dirt/MX
Internal Fit Shape Intermediate Oval
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Where to buy

Best price $289.95 Amazon (US)
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Price History

Product Concept & Specifications

Alpinestars (Italy)

Engineering & Technical Analysis

Die SM5 nutzt die proprietäre EPS-Innenauskleidung von Alpinestars mit einer mehrlagigen Schaumstoffkonstruktion, um die Stoßdämpfung im Kinn- und Schläfenbereich zu optimieren. Die aerodynamische Geometrie der Schale ist darauf ausgelegt, Luftturbulenzen bei hohen Geschwindigkeiten zu kontrollieren und gleichzeitig die strukturelle Steifigkeit unter seitlichen G-Kräften zu gewährleisten, wie sie typisch für Motocross-Rennen sind.

Fit & Shell Structure

Intermediate Oval Shape

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

[MATR.SHEL] Shell Construction Polymer Outer structural material
[PHYS.MASS] Measured Weight 1350g (2.98) Approximate medium size weight
[COVG.YEAR] Warranty 2 Manufacturer coverage duration
[OPER.ROLE] Primary Use Case Dirt/MX Optimized riding orientation

Safety & Certifications

[SYS.CERT] Homologation ECE 22.06 Certified safety standard
[SYS.PROT] Rotational Protection None Mitigates rotational impact
[SYS.EQRS] Emergency Release Not Equipped Cheek pad quick removal
[SYS.LOCK] Retention Strap Double D-Ring Chin strap buckle style

Acoustics & Aerodynamics

92 dB
Acoustics
8 /10
Ventilation

Quiet Index: Superior sound damping and isolated ear cavity structures. High flow channels optimize high-velocity dynamic ventilation.

[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 Generic Speaker Cutouts 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

Regional Legality & Compliance

🇺🇸 US Legal For Off-road Use
Required: DOT

Certified for use in the United States; meets DOT FMVSS 218 standards.

🇪🇺 EU Legal For Off-road Use
Required: ECE 22.05

Compliant with ECE 22.05 regulations for use in European markets.

🌐 CA Legal For Off-road Use
Required: DOT

Accepted for use in Canada under DOT standards.

Regional Legality Guidance

US

Status: Legal for Off-Road Use

Required: DOT

Certified for use in the United States; meets DOT FMVSS 218 standards.

EU

Status: Legal for Off-Road Use

Required: ECE 22.05

Compliant with ECE 22.05 regulations for use in European markets.

CA

Status: Legal for Off-Road Use

Required: DOT

Accepted for use in Canada under DOT standards.

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