Rays Centre Caps

[PhilGTR]

Has anyone fitted rays centre caps before? I have a set of gram lights 57f pros that came with a set of centre caps and a set of these metal rings. When i put the centre cap over the centre of the wheel it fits nicely but there is nothing at the back of the wheel for the centre cap clips to clip onto.. Is there something else i need??

[Gts-t]

I have rays rims, but my center caps had rubber o-rings in them. Once pushed in they are a very snug fit.

At a half educated guess id try and fit the metal ring to the center cap or the mag and then fit the center cap into place.

Pics would probably help too