Hi Chris,
you can just use the fillet tool as shown in the photo.
I did the collar trim to give a variable fillet as I was unable to get it with the fillet tool.
I'm basically trimming the solid with a collar produced by sweeping desired fillets.
The sweep path is the edge where spoke joins the hub.
If your still unsure post me your curves and I will mark up what's needed.
Cheers
Barry

Edit:
It's possible to do it with the fillet tool with variable fillet my problem was filleting across the seam of the hub.