There you go again. WikiPedia is NOT a credible source. It's not an admissible reference for high-school papers, much less university/phD level dissertations. Where is a sideways force coming from? The only forces on a moving bike is longitudinal. Friction pushes you back and your momentum pushes you forward. Where does the sideways force come from and what generates it?

Let me give you a hint, for any given lean-angle, there are three states. There is a "balanced" radius of turn and speed such that no steering is needed. There is also a radius & speed where you need to "turn into" the turn and there's a radius & speed where you need to "turn out" of the turn. Since there are three variables, we have a cartesian-product of 9 possible states of cornering to describe. Look up camber thrust and camber roll as it relates to rounded tyre profiles.