^ Calipers are NOT rotating mass but they are unsprung weight which effects suspension performance.
Physics 101…
Light tires = best
Light wheels = great
Light rotors = very good
Light calipers = good
In other words, the less mass you have on the bigger diameter the better.
Or, try to keep as much mass near center as possible.
I just mounted new tires on the Xterra and I couldn’t beleive how much they weighed.
I am used to little low profile tires.
All I could think is how much torque these big tires rob.
Imagine a monster truck tire!!!