[Unanswered]  Help identifying the complete origin of these MFB wheels

So I won an auction from Japan a few weeks ago, and saw that these were in a box.

Now there is no documented release of a bronze/red Storm or a gold Ray, so I think theyre custom but the note in the middle was inside the package

It says '爆転倶楽部ベイキング' or 'Bakuten Club - BeyKing'. 


[Image: 20211108_195236.jpg?width=507&height=676]

Does anyone know more about where these wheels are from or how they were obtained? Not sure if I am sat on some MFB history or not.
They're likely tournament prizes from back then.