ALPINESTARS HELMET SM3 RADIUM BLK/RED/WH

***All helmets are final sale.

• Advanced Shell Construction: This helmet features a thermo-injected shell incorporating a special polymer blend enhanced by varying degrees of thickness that is engineered to deliver the optimal combination of impact protection and lightweight. The SM3 medium weighs 1430g (ECE) and 1460g (DOT).
• The SM3 helmet conforms to both DOT certification and ECE 2206 homologation for use worldwide.
• The inner and outer surfaces are engineered to minimise the effects of oblique impacts.
• Stainless steel D-rings ensure a tight and secure fit.
• 5 EPS inner parts with 4 densities to effectively manage volume and impact performance.
• Equipped with an Emergency Release System and removable cheek pads to permit the safe and easy removal of the cheek pads while the helmet is still on, while the 3D contoured foam ensures rider comfort.
• Soft textile chin strap is 25mm for optimal safety and rider comfort.
• The inner and outer surfaces are engineered to minimise the effects of oblique impacts.
• Patented visor release system ensures the visor is released with the correct pre-determined amount of force, effectively reducing the forces on the rider’s neck during an impact.
• Hydration tube channels are integrated into the helmet’s cheek pads for convenience and performance.
• Comfort liner is constructed using recycled materials for a lower carbon footprint.
• The fit can be tailored to the rider’s head thanks to the helmet’s crown and cheek pads, which are available as genuine spare parts in different thicknesses.
• Maximized ventilation and high levels of heat transfer exchange thanks to 10 inlets and seven exhaust ports.
• Alpinestars patented low-friction coating is applied to the inner part of the main EPS liner to reduce the rotational acceleration forces that can result from certain oblique impacts. This layer essentially acts as a slip plane to mimic the brain’s own low-friction cerebrospinal fluid, which is the body’s natural defence against oblique impacts