Originally Posted by
Dave Mayer
Other factor: traction. Unless you're running some kind of weird front-drive bike, you need more tread on the rear than the front.
Maybe if we just rode in straight lines, this would make sense. However, the rest of us encounter turns, so front traction is usually the limiter. I can't think of a real-world reason why I would run a more aggressive tire in the rear and not the front.