casco hjc rpha 70 carbon 1A supreme sport touring helmet, designed for any type of trip, from short rides to long distance cruises. The RPHA 70 Carbon is exceptionally compact and lightweight thanks to the carbon fiber outer shell that provides greater impact resistance with reinforcement material including carbon and a hybrid glass and Carbonvetro fabric. Compatible with SMART HJC Bluetooth. SPECIFICATIONS SIZES Size Cheek Pads Liner XS 54 55cm 45mm 12mm S 55 56cm 40mm 9mm M