Rockers are members or followers of a biker subculture that originated in the United Kingdom during the late 1950s and was popular in the 1960s. It was mainly centred on motorcycles and rock 'n' roll music. By 1965, the term greaser had also been introduced to Great Britain and, since then, the terms greaser and rocker have become synonymous within the British Isles, although used differently in North America and elsewhere. Rockers were also derisively known as Coffee Bar Cowboys. Their Japanese counterpart was called the Kaminari-Zoku.

Motorcycling is the act of riding a motorcycle. For some people, motorcycling may be the only affordable form of individual motorized transportation, and small-displacement motorcycles are the most common motor vehicle in the most populous countries, including India, China and Indonesia.