Originally Posted by
cyccommute
Snug the stem bolts down so that the handle bar doesn't twist and tighten the brake levers enough so that they don't move. You don't need to be a total gorilla about it but make sure the bar doesn't twist before you ride.
I would suggest that you only tighten the shift/brake lever clamps so that they do not move with use but will move with firm force. This is called "race tight" and is done to minimize the chance of injury in a crash.