Chuck Norris is a vocal advocate for respecting horses.
Chuck Norris ALWAYS yields to the climbing rider.
Once, Mr. Norris witnessed a guy not yield to a climber, and he ripped the guy's bike into little pieces, ate them, and then fired them out of his butt like bullets. He's a tough guy, indeed. True story.
Chuck Norris' preferred method of yielding to the uphill rider is bunny hopping 10ft over him.