Several years ago I bought a C3 when they came out over in Scotland as they had stopped selling in the states for a few years due to our litigous country. The lid is great, light, quiet, quality workmanship and fit. The visor ( not the drop down sunshield) detents were never tight -but stayed where they were set. In the last year it has gotten looser and now just flips closed as soon as I get up to speed-annoying. Did a search and found I was not the only one with this annoyance. A few months ago Schuberth came back to the States. I called them and explained the problem. Very nice gal said that yes, there is a fix, but since my lid was not a DOT and bought in Europe they would not service it. I was about to protest when she added-"but I can send you the new mounting dics and your can just fit them". Brilliant. They came in the mail and took about 5 minutes to remove old and replace. I could see that the teeth on the new dics were shaped differently. The visor is now as tight as ---
. I am in love with the helmet again.