This is my 5th modular since my first BMW system 1 back in 85. Including system 2, Schoei, & Caberg. With the C3 pro Schuberth addressed noise and comfort issues with the C3.
It is by far the comfiest and quietest helmet I ever owned, right out of the box. I must have a Schuberth XXL head shape. There is still some noise, but it's so muted it's eerie. And I can ride with the visor shut, the included pinlock lives up to it's hype. 20F and it only fogs at stoplights. Clears up soon as I get moving. My Caberg I had to leave the visor cracked and froze my face. Never would have spent so much on a lid but this was a gift, it would be really hard to go back to a "normal" helmet. No interest in communication systems so can't comment about that. No guarantees it will work for anyone else, but I like it. And I've got enough crunched helmets on my shelf I rarely venture out bareheaded.
