This is another Trivial Pursuit question where I disagreed with the given answer.
The question was "What is the World's longest non-mechanical race?" Their answer was "The Tour de France". I disagreed with the answer for two reasons; 1) A bicycle is a mechanical device, and 2) If a bicycle is allowed, then so should a yacht be, in which case a round-the-world yacht race is longer.
What are your feelings on this, experts?