Alpinestars Supertech R10 Team HelmetA high end race developed street and track helmet for riders who want maximum aerodynamic performance, advanced impact protection and stable high speed airflow on supersport or superbike riding. Key Features Racing derived aerodynamic shell designed to reduce drag and lift Integrated rear spoiler for high speed stability Large eyeport for wider field of vision on tucked riding positions Tool free visor removal with metal locking mechanism Race