[mike16]

on the inside of the rim the same set up is used. note that it avoids the wheel weight,

because of oil leaks, I wiped down the rim with a shop rag moistened with WD40. then measured run out.

It does not surprise me that my rims are pretty straight They weigh an enourmous amount and are very stout. even the junk rims I have aquired are straight.

summary: no more than 62 thousandths, measure in two locations on the front side and one on the back side. the dial guage set up came from harbour freight. it cost like 50$