SM3 Radium Visor tech air The Formula 1-derived stretch panels

The Formula 1-derived stretch panels provide excellent levels of flexibility and freedom of movement in all the key areas that require mobility

The extremely lightweight Level 2 CE and UKCA Nucleon Flex Pro Protection Vest features a highly ventilated hybrid of Nucleon Cell and Nucleon Flex protectors for the optimum balance of force dispersion and flexibility

performance-ready feel

Advanced NUCLEON PLASMA knuckle protection delivers CE Level 1 certification while maintaining a lightweight

they effectively filter out fine dust while maintaining essential airflow through the RAM-AIR ventilation system

SM3 Radium Visor tech air The Formula 1-derived stretch panelsThe 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.