Casque de motocross Alpinestars Supertech M3 Jettson (gris/violet/noir)

Features

• Engineered for MX, enduro and offroad riding
• 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
• 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
• Equipped with an Emergency Release System (ERS) and removable cheek pads to permit the safe and easy removal of the cheek pads while the helmet is still on
• 3D contoured foam ensures rider comfort
• Stainless steel D-rings on the 25 mm soft textile chin strap offer a tight and secure fit for optimal safety and rider comfort
• 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
• Maximized ventilation and high levels of heat transfer exchange thanks to ten inlets and seven exhaust ports
• The inner and outer surfaces are engineered to minimize the effects of oblique impacts
• Alpinestars proprietary 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 defense against oblique impacts
• Alpinestars proprietary 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
• Five EPS inner parts with four densities to effectively manage volume and impact performance
• Medium size weighs approximately 1430 g
• The following standards apply to this product: tested and certified to DOT/​ECE 22.06