I got the 17mm hexes from GPM racing they are a nice fit on the buggy and also onto a 17mm hex wheel.
i just replaced the standard hex on the front it didn't need the collar they came with now i just need to buy that street tire wheel combo for it.
I figured it out the silver collar goes on the out side of the wheel since the wheel nut is small to brace it.
This wheel hex kit is genius and fits like oem i hope it holds up.
I won't be using these buggy wheels there too heavy i just used them for show.