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Alpinestars · SM5

Alpinestars SM5

DOT, ECE 22.05

About the Alpinestars SM5

Dirt/MX

Dominate the track and trail with the Alpinestars SM-5, a pinnacle of motocross engineering designed for riders who demand uncompromising performance. This helmet features a sleek, aggressive aesthetic that mirrors its aerodynamic efficiency, reducing drag to keep you focused on the apex. Constructed from high-strength composite materials, it offers superior impact protection without sacrificing the lightweight agility essential for racing. The advanced ventilation system channels cool air directly to critical zones, eliminating fatigue during intense heat sessions. With a precise Intermediate Oval fit and customizable retention systems, the SM-5 delivers a custom-like feel for every rider. Whether you are tackling technical forest trails or high-speed circuit laps, this helmet provides the ultimate balance of safety, comfort, and style.

DOT, ECE 22.05 Intermediate Oval SM5 Family Polymer 1 year warranty Dirt/MX Mid Range

Technical Analysis

The Alpinestars SM-5 utilizes a lightweight composite shell construction reinforced with carbon fiber inserts to maximize rigidity while minimizing weight. Its internal suspension system features an advanced EPS liner with variable density zones, ensuring optimal energy absorption across diverse impact vectors typical of motocross environments.

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 22.05 None
Aero-Acoustics 98 dB

Moderate: Balanced road noise levels.

Ventilation Flow 7/10

Good Flow: Standard EPS exhaust ports.

Double D-Ring 🔊 Comms Ready

Visor Features

Pinlock Ready Optically Correct
Real-time price tracking active across international retailers. Good Buy

Where to buy

Best price $289.95 Amazon

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Price History

Part numbers

Product style MFR. product # SKU Availability
Matte Black / ALP-SM5-BLK instock
Pearl White / ALP-SM5-WHI instock
Racer TC-2 / ALP-SM5-RAC instock
Course Blue / ALP-SM5-COU instock

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, HUD compatibility, or specific road-legal homologation standards like ECE 22.06.

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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