[D-CEL]

Sorry, Yes the word is hub, lol
I had a "hub" that was machined out of a factory rotor/hub assembly. I was chasing a flutter in the pedal for a while and confused why I couldn’t fix it. When I checked the hub face it had .015 run out. Replaced the hubs with a Wilwood part and it was all fixed.

The only guys that run the 1.38 and larger rotors are the stock cars and other heavy applications. There are a few calipers in that category, Prolite, Integra, GNIII, TC6R.

What does your car weigh?
Your 160-3874/75’s are 14.8 lbs each!! That’s a lot of rotating mass.
If you went to a 1.25 x 12.19 (160-4576/77) they are only 10.7 lbs each., you would drop 8lbs of RM.
Or you could maybe go bigger at the same weight?
I was able to put 12.720x1.25 with SL6Rs inside my 15” Trigos

What size wheel do you run?