Description
Alpinestars SM3 Helmet – MX, Enduro & Off-Road Helmet
The Alpinestars SM3 Helmet is engineered for serious motocross, enduro, and off-road riders, delivering advanced impact protection, lightweight performance, and all-day comfort. Built with cutting-edge safety technology and certified to the latest standards, the SM3 is designed to perform when it matters most.
Key Features
Lightweight Protective Shell
- Advanced thermo-injected shell construction using high-performance polymer blend
- Variable shell thickness for optimal strength-to-weight ratio
- Approx. weight: 1430g (Medium – ECE)
Advanced Impact Protection System
- Multi-density EPS liner (5 zones, 4 densities) for superior energy absorption
- Low-friction internal layer reduces rotational impact forces from angled crashes
- Inner and outer shell surfaces engineered to minimize oblique impact effects
Maximum Ventilation
- 10 intake vents / 7 exhaust ports for high airflow
- Designed for effective heat management in extreme riding conditions
Patented Visor Release System
- Visor detaches at a pre-set force during impact
- Reduces rotational stress and potential neck injury
Reinforced Chin Protection
- Exceeds standard helmet testing requirements
- Optimized chin bar structure for improved frontal impact performance
Comfort & Fit
- Removable, washable comfort liner made from recycled materials
- 3D contoured foam for enhanced rider comfort
- Interchangeable cheek pads and crown liners (multiple thickness options)
- Integrated hydration tube channels for off-road riding
Safety & Emergency Features
- Emergency Release System (ERS) for safe helmet removal
- Removable cheek pads while helmet is still worn
- Soft 25mm chin strap for comfort and security
- Durable stainless steel D-ring closure system
Certifications
- DOT Approved (USA)
- ECE 22.06 Certified (latest European safety standard)
Why Choose the Alpinestars SM3 Helmet?
- Lightweight motocross helmet with advanced safety tech
- Designed for MX, enduro, trail, and off-road riding
- Superior ventilation and rider comfort
- Meets global safety standards
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