Helmet Alpinestars S-M3 Radium Red

The Alpinestars S-M3 Radium youth helmet offers safety and comfort for younger riders.

Specifications:

• Hydration tube channels: the integrated routing in the cheek pads keeps the hydration line tidy and in place for easy access during long runs and enduro stages.
• Emergency release system: removable cheek pads allow for faster helmet removal after an incident, helping to make post-crash management more efficient.
• Adjustable inner fit: interchangeable crown and cheek pads in various thicknesses allow precision adjustment of comfort and stability for a more personalized feel.
• Off-road usability: rider-oriented interior features are designed to provide practicality and comfort during racing when conditions and sections become more demanding.
• The internal and external surfaces are designed to minimize the effects of oblique impacts.
• Five internal EPS sections with four densities are integrated to manage impact energy in different impact scenarios.
• The fit can be adapted to the rider's head with crown pads and cheek pads available in different thicknesses, helping maintain a secure and stable protective position.
• The SM3 helmet meets DOT certification and ECE 2206 homologation.
• Thermoinjected shell constructed from a special blend of polymers and with varying shell thicknesses throughout the structure to keep weight low.
• Chin bar area reinforced with optimized shell thickness and helmet geometry for a stronger front structure.
• Multidensity EPS liner with 5 internal parts and 4 densities, combined with profiling of the internal and external surfaces to form the helmet's impact-absorbing structure.
• Emergency Release System with removable cheek pads and contoured 3D foam padding for a modular interior assembly.
• 25 mm wide soft textile chin strap with stainless steel D-rings for the retention system.
• Approximate weight: 1430 g (ECE) / 1460 g (DOT), size M.