Center Cap size for TE37SL?
 

Hoping some current owners can give insight.. the hub bore is 65mm on the wheel but the center cap opening is slightly smaller, I measured it at around 63mm. Can someone confirm what the proper center cap size is?

I imagine the 65mm would compress 1mm both ways to lock in, but I want to make sure I'm getting the right size.

Wheel spec: 18x9.5 +40 TE37SL

Thanks in advance