ALPINESTARS(MX) SM3 Radium Helmet — 2XL
Engineered for MX, enduro and off-road. Thermo-injected polymer shell for lightweight protection. Low-friction liner reduces rotational forces. Patented visor release. 10 inlets, 7 exhaust ports.
Engineered for MX, enduro and off-road. Thermo-injected polymer shell for lightweight protection. Low-friction liner reduces rotational forces. Patented visor release. 10 inlets, 7 exhaust ports.
Designed for MX, enduro and off-road use, this helmet blends ease of use, comfort and impact performance.
Thermo-injected shell uses a special polymer blend with varying thickness to balance impact protection and lightweight construction.
A patented low-friction coating on the inner EPS liner reduces rotational acceleration from oblique impacts, acting as a slip plane similar to cerebrospinal fluid.
Patented visor release system releases the visor at a predetermined force to help reduce neck loads during an impact.
Maximized ventilation with 10 inlets and 7 exhaust ports ensures efficient heat transfer and airflow. 🪖