12″ Factory Beadlock Wheel Specs

I ordered some spacers from Amazon for my machine and the bolt pattern is not exactly right. I’m trying to return them and the seller is wanting to know the centerbore and thickness of my wheels? Does anyone know where I can get this information? I ordered 4×137 spacers and the item description said it was supposed to fit my machine…. very frustrating.

If anyone can help me out with the centerbore and thickness of my 12" factory beadlock wheels on a 2014 Maverick Max 1000 XRS, I would greatly appreciate it.