Giro cinder helmetgiros cinder helmet offers all the features a passionate road cyclist requires in a lightweight helmet cinder has been inspired by the aesthetics of giros top quality synthe helmet providing comparable performance and style extra comfort prevents frictionone of the key features of the cinder helmet is the roc loc 5 this fit system allows you to easily custom tune the fit tension and fore aft tilt of the helmet in seconds using only one hand another key feature is the ai