making the helmet your best ally on the trails

Constructed with a single-layer high-flex stretch chassis

Advanced ventilation and ergonomic cargo pockets ensure comfort and practicality across diverse terrains

it delivers superior airflow and moisture management in demanding conditions

and perforated goat leather for enhanced airflow

s m3 radium visor ece06 red motochrome red fluo white glossy Size:One Size making the helmet your bestThe SM3 Radium Visor is an official Alpinestars helmet accessory designed to restore coverage, roost deflection, and the original look of S M3 Radium motocross helmets. Developed for MX riders who demand precise fit and seamless integration, it delivers a dependable replacement solution that keeps your helmet ready for track and off road use.