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Alpinestars · SM5 · Alpinestars SM5

Alpinestars SM5 Pearl White

DOT, ECE 22.05

About the Alpinestars SM5 Pearl White

Dirt/MX

Dominate the track and trail with the Alpinestars SM5 in a striking Pearl White finish, designed for riders who demand uncompromising performance without sacrificing style. This dirt-specific helmet features an aggressive aerodynamic profile that slices through the air, reducing drag and minimizing wind noise for enhanced focus during intense off-road sessions. The interior is lined with moisture-wicking fabric and customizable EPS padding, ensuring a secure, race-ready fit that adapts to your head shape perfectly. With its robust construction meeting rigorous safety standards, the SM5 offers peace of mind when pushing limits on rough terrain. Whether you are navigating technical single-track or racing on closed circuits, this helmet delivers superior ventilation through strategic intake and exhaust ports, keeping you cool even in the hottest conditions. Elevate your riding experience with a piece of gear that blends cutting-edge technology with timeless Alpinestars heritage.

DOT, ECE 22.05 Intermediate Oval SM5 Family Polymer 2 year warranty Dirt/MX Mid Range

Technical Analysis

The SM5 utilizes Alpinestars' proprietary EPS liner architecture with a multi-density foam construction to optimize impact absorption across the chin and temple regions. Its aerodynamic shell geometry is engineered to manage airflow turbulence at high speeds while maintaining structural rigidity under lateral G-forces typical of motocross racing.

Feature 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

Safety & Aero-Acoustics HUD

Awaiting SHARP Audit

SHARP impact test results pending.

ECE 22.06 None
Aero-Acoustics 92 dB

Extremely Quiet: Superior long-distance sound damping.

Ventilation Flow 8/10

High Flow: Dynamic multi-channel active venting.

Double D-Ring 🔊 Comms Ready

Visor Features

Pinlock Ready Optically Correct
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Where to buy

Best price $289.95 Amazon

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Price History

Interactive Size & Fit Finder

Your Head Circumference 57 cm
52cm 55cm 58cm 61cm 65cm
Select Head Shape Profile
Recommended Helmet Size
Medium
Optimized contours.
Perfect for standard intermediate head profiles.

Alpinestars SM5 is a motocross/dirt helmet designed for off-road use; it does not feature integrated speakers, cable management ports, or HUD compatibility.

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.

Available Colors & Graphics

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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