The Honda tech assured me that NO full-face helmet would ever fit in the 2018 saddlebags. The Tour trunk is supposed to accommodate two helmets, as long as they are canted toward each other, with visor facing the rear. At XXXL, I have a really big head (like so many in Hollywood), so I'm happy just finding a helmet that fits. Keeping it locked up would be fantastic, but that's never going to happen.