In article ,
says...
Uh... who needs to take the tire and tube off to true a wheel?

So you can check if the spoke thread is coming through the rim tape, and
going to bite you in the ass the minute you put any weight on it.
Especially useful to do if you are working on a customers wheel, and
they are paying for it, and ready to go riding.
--
The poster formerly known as Skodapilot.
http://www.bouncing-czechs.com