The under-seat hook provided to secure helmets to my 2002 R1150RT just wouldn't work with my helmet. The chinstrap wasn't long enough to get the helmet out of the way for the passenger seat to go back on. Don't know if any other combination of model/helmet would benefit, but here it is. Made from 0.025" stainless that was fairly stiff. (I think a misbehaving toaster donated the material) The hole was for some kind of lanyard but the seat holds it in place without.