tubular diameter 25 mm / installation by a qualified mechanic is recommended

It incorporates high-density thermo-compressed foam protectors on the back

Its compact size is achieved through the use of two outer shell sizes

factory-assembled clear screen

ensuring that the helmet meets rigorous safety requirements for reliable protection

HJC F100 REFF MC1 Casco Modular De Moto Size:XL tubular diameter 25 mm /HJC F100 REFF Modular Motorcycle Helmet Carbon fiber outer shell: Provides a lighter and more comfortable helmet with greater impact resistance. ACS (Advanced Channeling) ventilation system: Full airflow from front to back with 2 inlets and 1 outlet that removes heat and humidity. HJ 45 visor prepared for Pinlock: With 99% UV protection and anti scratch treatment. Dark sun visor fitted as standard for more comfortable driving in the sun. Advanced