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The hub center is more important for the disc/bearing/cv joint. Not really the road wheels. If the car has bolts, the hub is used to help you mount the wheel If your car has studs, rather that bolts then the center hub does nothing to mount the wheel to the hub. Personally I like a bit more hub clearance as I have had alloys that have corroded to the hub.
I'd get a machine shop to machine the hub center and chamfer it. Easy enough with the right pilar drill ;)
But then the crucial measurement should be the "fatter inner bit" right? Bit weird since that measurement was listed in a parentheses? So are all hubs made like this with a wider ridge with a degree of slope with a corresponding slope on the rim? (havent really been paying attention when changing wheels on cars b4).