ON3P is one of, if not the only company that measures true/above listed size. Companies, say Icelantic and armada seem to have a -3cm difference. So a 191 Nomad 105 measures out to 187 somehow (per source of a 191 Icelantic owner I know). Also know someone who had a 186 Magnus and they measured to a little over 187. Just something to keep in mind if you didn’t already know.