Stupid question: Does anyone know what this could be? Looks like a harmless manufacturing flaw but I want to be sure? It is round, seems to have a cut halfway and when I move my finger over it, it feels very hard.

tire.jpg


--

RC (Germany) - Rennteam Editor Porsche 991 Turbo S, Cayenne GTS (958), BMW X3 35d (2013)