Road cyclists frequently draft behind a car or motorcycle; motor-paced racing used to be a very popular discipline and motorcycles are still used for pacing the

Road cyclists frequently draft behind a car or motorcycle; motor-paced racing used to be a very popular discipline and motorcycles are still used for pacing the Keirin event. https://en.wikipedia.org/wiki/Motor-paced_racing https://en.wikipedia.org/wiki/Motor-paced_racing