Alpinestars Sm3 Youth Wurx Helmet Motorcycle Helmets

The all-new SM3 Youth Helmet is anatomically engineered and profiled specifically for younger riders. Optimized for MX, Enduro, and Off-road use, it incorporates advanced technologies from Alpinestars' adult range to deliver the ultimate blend of performance, safety, and comfort.

Key Features & Fit

• Thermo-Injected Shell: Constructed from a technologically advanced impact-resistant thermoplastic with a special polymer blend for optimal weight and protection. 

• Youth-Specific Sizing: Available in three shell sizes (YS, YM, YL).

  • YS (Youth Small): Dedicated fit for very young riders (typically 3-4 years old).

  • YM & YL Compatibility: Shared EPS size allows a YM helmet to be reconfigured to YL as the child grows via spare parts. 

• Tailored Comfort: Fit can be customized using crown and cheek pads of different thicknesses.

• Lightweight Performance: Weighs approximately 1060g (ECE) and 1170g (DOT). 

• Region-Specific Protection: DOT versions feature a composite fiber layer between the shell and EPS for maximum impact resistance.

Advanced Construction

• Multi-Density Inner Liner: Ensures the correct density in specific areas for superior impact absorption and reduced weight. 

• Rotational Force Reduction: Features Alpinestars’ patented low-friction coating on the EPS liner to mimic the brain’s natural defense against oblique impacts.

• Maximized Ventilation: Equipped with 10 inlets and 7 exhaust ports for high-level heat transfer. 

• Patented Visor Release System: Designed to release with a pre-determined force to reduce stress on the rider’s neck during an impact.

• Eco-Friendly Comfort: The comfort liner is constructed using recycled materials to reduce the carbon footprint. 

Safety & Technical Standards

• Alpinestars New Safety Standard: Optimized shell thickness and structure in the chin area to exceed standard homologation requirements. 

• ERS (Emergency Release System): Removable 3D contoured cheek pads allow for safe helmet removal in emergency situations.

• Secure Fastening: High-quality stainless steel D-rings ensure a tight and reliable fit. 

• Hydration Ready: Integrated channels in the cheek pads for easy hydration tube installation.

• Global Certification: Conforms to both DOT certification and ECE 2206 homologation.