I have 2 orf the Shoei Neo Tec2 helmets with the new metal slide locking system. I am hoping someone on here either has or can come up with a solution for locking the helmets as they do not have a D ring for locking. I have called Shoei and they were no help other than say buy a plastic cable and lock to the bike. I would like to make something but I do not have the stuff needed. I would like to make a receiver for the metal slide that has a key lock and a way to lock to the bike. I may just stick with the cable and padlock.