I use that method to get it close. Then, to get it exact, I just take the bike out on some level pavement at medium speed and take my hands off the bars. If my rear tire is in perfect alignment, the bike will stay in line. If not, the bike will start to lean one way or another. If you can ride hands-off then your rear tire is in alignment.
One other point... look at where the chain is just meeting the rear sprocket when the tire is turned (i.e. when it first begins to touch the sprocket). This is where it should be centered. Once it is on the sprocket for a partial revolution, it will tend to center itself.
[I]When you think of the long and gloomy history of man, you will find more hideous crimes have been committed in the name of obedience than have ever been committed in the name of rebellion.[/I]
- C. P. Snow
Last edited by Jarlaxle28; 05-14-2014 at 05:01 AM.