Nolan Helmets N104 Evo Flt Blk W/Mcs Md N1R527226039M Now the N-104evo MCS comes with a preinstalled headset for your Harley Davidson or Honda Goldwing factory radio Please specify which bike you have because the lower cords are different Produced in two outer shell sizes of injected polycarbonate GE Lexan, keeping the helmets weight to a minimum and proportionate to the riders size; the dimensionally correct sizing allows ample cubic volume in the chin/nose area Innovative ventilation system is also equipped with an air intake in the chin guard, an air intake in the frontal area and two rear extractors recycling air inside the helmet DOT FMVSS 218 Certified