We just measured TIR at 0.004"
Not horribly bad, but all those tolerances add up.
0.004 on the hub holes
0.004 on the pin
0.004 on the wheel
0.004 on the hub adapter to the hub
and you are now out 0.016 and you wonder why your wheels won't go on. Now, I am not saying the hub and wheel are out. I am just illustrating the nasty concept of "Tolerance Stacking."
David
