Rockers, leather boys,Ton-up boys, and possibly café racers[better source needed][better source needed] are members of a biker subculture that originated in the United Kingdom during the 1950s. It was mainly centred on British café racermotorcycles 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 equivalent was called the Kaminari-zoku (Thunder Tribe).
Until the post-war period motorcycling held a prestigious position and enjoyed a positive image in British society, being associated with wealth and glamour. Starting in the 1950s, the middle classes were able to buy inexpensive motorcars so that motorcycles became transport for the poor.
The rocker subculture came about due to factors such as: the end of post-war rationing in the UK, a general rise in prosperity for working class youths, the recent availability of credit and financing for young people, the influence of American popular music and films, the construction of race track-like arterial roads around British cities, the development of transport cafes and a peak in British motorcycle engineering.
During the 1950s, they were known as "Ton-Up boys" because doing a ton is English slang for driving at a speed of 100 mph (160 km/h) or over. The Teddy boys were considered their "spiritual ancestors". The rockers or ton-up boys took what was essentially a sport and turned it into a lifestyle, dropping out of mainstream society and "rebelling at the points where their will crossed society's". This damaged the public image of motorcycling in the UK and led to the politicisation of the motorcycling community.
The mass media started targeting these socially powerless youths and cast them as "folk devils", creating a moral panic through highly exaggerated and ill-founded portrayals. From the 1960s on, due to the media fury surrounding the mods and rockers, motorcycling youths became more commonly known as rockers, a term previously little known outside small groups. The public came to consider rockers as hopelessly naive, loutish, scruffy, motorized cowboys, loners or outsiders.
The Rocker subculture was associated with 1950s and early-1960s rock and roll music by artists such as Gene Vincent, Eddie Cochran and Chuck Berry, music that George Melly called "screw and smash" music.
The term café racer originated in the 1950s, when bikers often frequented transport cafés, using them as starting and finishing points for road races. A café racer is a motorcycle that has been modified for speed and good handling rather than for comfort. Features include: a single racing seat, low handlebars (such as ace bars or one-sided clip-ons mounted directly onto the front forks for control and aerodynamics), large racing petrol tanks (aluminium ones were often polished and left unpainted), swept-back exhaust pipes, rear-set footpegs (to give better clearance while cornering at high speeds) with or without half or full race fairings.
These motorcycles were lean, light and handled various road surfaces well. The most defining machine of the rocker heyday was the Triton, which was a custom motorcycle made of a Norton Featherbed frame and a Triumph Bonneville engine. It used the most common and fastest racing engine combined with the best handling frame of its day. Other popular motorcycle brands included BSA, Royal Enfield and Matchless.
The term café racers is now also used to describe motorcycle riders who prefer vintage British, Italian or Japanese motorbikes from the 1950s to late 1970s. These modern café racers do not resemble the rockers of earlier decades, and they dress in a more modern and comfortable style, with only a hint of likeness to the rocker style, nor do they share the passion for 50s rock'n'roll. These modern café racers have taken elements of the American greaser, British rocker, and modern motorcycle rider styles to create a look of their own. Rockers in the 2000s tend still to ride classic British motorcycles, however, classically styled European café racers are now also seen, such as Moto Guzzi or Ducati, as well as classic Japanese bikes, some with British-made frames such as those made by Rickman.
Rockers bought standard factory-made motorcycles and stripped them down, tuning them up and modifying them to appear like racing bikes. Their bikes were not merely transport, but were used as an object of intimidation and masculinity projecting them uneasily close to death, an element exaggerated by their use of skull and crossbone-type symbolism.
First seen in the United States and then England, the rocker fashion style was born out of necessity and practicality. Rockers wore heavily decorated leather motorcycle jackets, often adorned with metal studs, patches, pin badges and sometimes an Esso gas man trinket. When they rode their motorcycles, they usually wore no helmet, or wore a classic open-face helmet, aviator goggles and a white silk scarf (to protect them from the elements). Other common items included: T-shirts, leather caps, Levi's or Wrangler jeans, leather trousers, tall motorcycle boots (often made by Lewis Leathers and Goldtop) or brothel creepers. Also popular was a patch declaring membership of the 59 Club of England, a church-based youth organization that later formed into a motorcycle club with members all over the world. The rocker hairstyle, kept in place with Brylcreem, was usually a tame or exaggerated pompadour hairstyle, as was popular with some 1950s rock and roll musicians.
Largely due to their clothing styles and dirtiness, the rockers were not widely welcomed by venues such as pubs and dance halls. Rockers also transformed rock and roll dancing into a more violent, individualistic form beyond the control of dance hall management. They were generally reviled by the British motorcycle industry and general enthusiasts as being as an embarrassment and bad for the industry and the sport.
Originally, many rockers opposed recreational drug use, and according to Johnny Stuart:
They had no knowledge of the different sorts of drugs. To them amphetamines, cannabis, heroin were all drugs - something to be hated. Their ritual hatred of Mods and other sub-cultures was based in part on the fact that these people were believed to take drugs and were therefore regarded as sissies. Their dislike of anyone connected with drugs was intense.
The rockers' look and attitude influenced pop groups in the 1960s, such as The Beatles, as well as hard rock and punk rock bands and fans in the late 1970s. The look of the ton-up boy and rocker was accurately portrayed in the 1964 film The Leather Boys. The rocker subculture has also influenced the rockabilly revival and the psychobilly subculture.
Many contemporary rockers still wear engineer boots or full-length motorcycle boots, but Winklepickers (sharp pointed shoes) are no longer common. Some wear brothel creepers (originally worn by Teddy Boys), or combat boots. Rockers have continued to wear leather motorcycle jackets, often adorned with patches, studs, spikes and painted artwork; jeans or leather trousers; and white silk scarves. Leather caps adorned with metal studs and chains, common among rockers in the 1950s and 1960s, are rarely seen any more. Instead, some contemporary rockers wear a classic woollen flat cap.
In the early 1970s, the British rocker and hardcore motorcycle scene fractured and evolved under new influences coming from California: the hippies and the Hells Angels. The remaining rockers became known as greasers, and the scene had all but died out in form, but not in spirit.
In the early 1980s, a Rockers revival  was started by Lennie Paterson (an original 59 Club member)  and a handful of original rockers who were "Chelsea Bridge Boys" who had continued to meet over the previous 20 or more years at the tea stall on the bridge. They organized nostalgic rocker reunion dances called piss-ups, which attracted individuals from as far as Europe, America and Japan[better source needed] and runs to nostalgic locations. The first rocker reunion motorcycle run of 70 classic British motorcycles rode to Pitsea. Following runs went to other destinations with historic relevance to Rockers such as Brighton, Southend and Southsea which, in 1988, attracted over 7,000 bikes. They established a model which has become a worldwide movement. Within a few years, these events attracted 10,000 to 12,000 revivalists, gaining widespread media attention and new converts.
In 1994 police officers Mark and brother Robert Wilsmore and others organised the first Ace Cafe Reunion to mark the 25th anniversary of the closure of the famous transport cafe before going on to re-opening it with business investors, trademarking the word "rockers" for their sole business uses in 1995 , and established a series of events. These events now attract up to 40,000 motorcyclists.
British motorcycle customisation stretches back to the 1950s, when the term cafe racer was coined. They were stripped-down machines, lighter than stock with dropped clip-on handlebars to make the riding position more aerodynamic, and were the low-cost mode of transport for the growing band of post-war rockers who would race ton-up (100mph) between transport cafes, such as the famous Ace Cafe on London's North Circular Road, along the then quiet motorway network.