Pipo I understand what you mean but I really wanted to know if OP and myself were understanding different headgears lol.. I also understand nRO had custom content to acquire them but my focus is narrow: the official way to acquire them. OP said that they "are somewhat useless" and they of course are entitled to that but I believe many of them can be quite incredible depending on how one wishes to build. nRO even had their proper stats and attributes. My source for this is kRO of course. "No one knows what they are"? Oh no....we can know exactly what they are:
KRO : Hugel Monster Racing
Regardless, I think OP may be onto something with their suggestion. nRO probably added it to their custom content for the same reason lol. I hope so as I absolutely loved and miss my +11 RK racing cap. I do know we have a +11 racinp cap refine ticket in the MuhRO database if I'm not mistaken so thats good lol.