Given a rotor thickness of 25.0mm and a lateral runout measurement of .11mm, what action can be taken to fix the runout error?

To address the lateral runout measurement of .11mm with a rotor thickness of 25.0mm, the solution involves determining how much material can be machined off the rotor to correct the runout. Machining the rotor by .11mm would eliminate the runout completely, restoring it to the manufacturer's specifications.

Choosing to machine the rotor by this amount is feasible because the total thickness of the rotor is significantly greater than the runout measurement. As long as the final thickness remains above the minimum discard thickness specified by the manufacturer, machining the rotor by .11mm effectively resolves the runout issue.

Other options may suggest partial fixes or alternative methods, but either they would not fully correct the runout or risk bringing the rotor thickness too close to the minimum thickness, potentially compromising safety and performance. Thus, machining the rotor by .11mm is the adequate and superior solution to rectify the lateral runout problem, allowing it to function correctly within safe operating limits.