Can You Identify These Parts?

Recently purchased a WR250R and received these in a box. I thought they were for a rear tail rack but can't figure how they would mount. Any ideas what these are?  I am sure you know!

They look strange and possibly home made. With that in mind I wonder if they are side gear racks and mount using the 4 subframe mounts under the rear tail that are not used on a stock bike but are used on a rear rack. And then maybe off to the frame again somewhere.

I mean its hard to guess from this pic. I would suggest in the pic they are upside down and possibly mount back into the passenger pegs maybe?

Yup rear racks for hard or soft bags,

Fiftygrit wrote:

Yup rear racks for hard or soft bags,

I would sure like this to be true but can't see anyway to fit them.

Try the 4 holes in the rear subframe like on my rear rack. They may not be drilled out if you don't have a rack and they just bolt up under the guard. I will show pictures to try and help.

The subframe


The holes in the guard which you may or may not have ( If you have no rack you probably don't need the holes drilled out)
But the racks looks to line up to these holes.