Also known as CX or cross, cyclocross is a type of off-road bicycle racing done on an obstacle course. It can also refer to a style of off-road riding. Cyclocross bikes look similar to road bikes but have certain features (like knobby tires and disc brakes) made for off-roading. Think of it as a happy medium between road and mountain biking.

A form of bicycle racing that consists of many laps of a short course featuring pavement, wooded trails, grass, steep hills and obstacles requiring the rider to quickly dismount, carry the bike past some obstacles and remount.