3D Surface Chamfer

So after tons of searching, I have hit a roadblock. I am new to Solidworks so I apologize if this is a basic question. I have revolved a solid from a sketch, and added some detail, and I am trying to add a chamfer to the inside of the spokes. I have attached some pictures of what I am working with, and hopefully I can get some help on this. I have spent a ton of time searching, but cant quite find the answer. I keep getting an issue where I cant seem to get a smooth chamfer all the way around. I have attached an image of what I am trying to accomplish. Thanks in advance!

SolidworksParts And Features