Rob, Here's what may be an even better solution. Thanks to Photoshop's ability to do free transform (distortion) it's possible to straighten the central verticals without doing away with the bar. The problem with doing away with the bar is that then there's no way to explain the bike handlebars, and cloning out the handlebars is more work than I'd like to do for this picture.
Frankly, I wasn't bothered by the slightly less than vertical central bars. It's a distortion caused by the angle of the shot. Believe me, there wasn't time to check central authority dicta such as the rule of thirds.