Tuff Wheel Repair

I had one like this in the late 80's.

I used a thin gauge needle to inject super glue from an inconspicuous spot on the back side.

I think I may have done 2 places equidistant from the center and the places where the foam stopped being loose.

Worked great.

kind of a common problem.
That's the way I was leaning but over-thinking it with a viscous two part epoxy and making a couple slits in the faux seam on the inside diameter and then injecting as much as would go in and squish it around. Super glue might be easier if the working time is long enough.