a race run much like a criterium, except that the racecourse involves dirt surfaces, trails, and a variety of other surfaces and obstacles, many of which must be overcome by running with the bicycle.

an off-road race that involves riders having to dismount and run over obstacles, carrying their bikes.

a fall or winter event contested mostly or entirely off pavement. Courses include obstacles, steps and steep hills that force riders to dismount and run with their bikes.