I use a Nolan modular. A little easier to talk to your riding buddy at stops by popping it open instead of shouting through the helmet of a regular full yet still gives you full face protection. Get one with good venting. Also better on wind noise then open face.

05 BA, Goodwood Green, Chevy605 pipes , ai removed, Freak kit, K&N pods, 145 main/42 pilot / 3 turns out, bags and screen