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Alpinestars · SM5 · Alpinestars SM5

Alpinestars SM5 Racer TC-2

DOT, ECE 22.05

About the Alpinestars SM5 Racer TC-2

Dirt/MX

Dominate the track with the Alpinestars SM5 Racer TC-2, a helmet engineered for those who demand uncompromising performance without sacrificing style. This dirt/MX masterpiece combines aggressive aesthetics with cutting-edge safety technology, featuring an integrated MIPS system that mitigates rotational forces during high-speed impacts. The TC-2 certification ensures it meets the rigorous standards of top-tier motocross racing, while its aerodynamic profile slices through the air to reduce drag and wind noise. Inside, a meticulously mapped intermediate oval fit provides a snug, secure hold, allowing you to focus entirely on your lines. With superior ventilation channels that keep you cool during intense heat sessions, this helmet is not just protective gear; it is an extension of your riding precision. Whether you are carving corners in the dirt or pushing limits on the tarmac, the SM5 Racer TC-2 delivers the confidence and clarity needed to race at the highest level.

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

Technical Analysis

The SM5 Racer TC-2 utilizes Alpinestars' proprietary MIPS technology integrated with a multi-density EPS liner to enhance rotational impact protection while maintaining a low center of gravity. Its aerodynamic shell design, featuring optimized air intakes and exhaust ports, balances high-velocity airflow for cooling with minimal wind turbulence at speed.

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 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
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Where to buy

Best price $339.95 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 Racer TC-2 is a motocross/dirt bike helmet designed for off-road racing. It features a carbon fiber composite shell with an EPS liner and a removable chin bar (TC-2). The fit is generally aggressive and low-profile, suitable for riders with standard to slightly narrow head shapes who prefer a tight, secure fit typical of MX helmets.

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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