Find out more about the motorcycle Integral helmet RPHA 11 from HJC, the flagship of the HJC collection and its outstanding features at Topspeed. Features Optimized shell with outstanding ventilation system RapidFireTM visex exchange system: Simple and secure visor mechanism allows quick, tool-free removal and installation Aerodynamic shell structure for trouble-free flow behavior at high speeds Emergency Kit (cheek pads) for a safe and fast rescue in emergency situations.