true up

present singular third person trues up · participle present trueing up · participle present truing up · participle past trued up · past trued up

1. To make something true, equal, or correct, as for example by turning and facing a part on a lathe.

   He trued up the brake discs and installed new pads.

   1 more example

   He trued up his faceplate before doing the next setup.

2. cyclingTo make a wheel level, balanced or even by adjusting the spokes; to true a wheel; ideally, to make it perfectly circular in relation to the hub with no left or right bulges nor 'flat spots'.