Pro Trac front skinnies question

[R68GTO]

Hope this is the right forum for this question, and hope it's not a dumb question....bought some Protrac 55515 front skinnies for my 4.5" wide Ansen slots. My question is related to the tire itself. I didn't notice it until they were mounted but 1 sidewall has a different profile than the other. One side has about a 1/8" raised section on the sidewall with the other side being more typical. I checked the Coker site and one of their pictures show that offset so I assume it's correct. The top pic shows the sidewall with the offset, the bottom pic shows the other side. My question is, should that be on the inside or outside of the wheel?