Road racing is motorcycle racing conducted on paved surfaces, either on purpose-built closed circuits or on public roads temporarily closed by legal order. The latter form — historically the original meaning of "road racing" — survives primarily in Europe, with prominent events including the Isle of Man TT, the North West 200, and the Ulster Grand Prix, all run on long public-road circuits.
Grand Prix motorcycle racing is the premier tier of road racing. It is divided into three classes:
Moto3, introduced in 2012, replaced the former 125 cc two-stroke class with 250 cc single-cylinder four-stroke machines. Rider age is limited to 25 for new signings and wild cards, with an absolute ceiling of 28 for all competitors.
Moto2 was established by Dorna Sports in 2010 as a 600 cc four-stroke intermediate class, replacing the previous 250 cc two-stroke category. From 2019 onwards Triumph Motorcycles supplies the controlled engine, based on the 765 cc Street Triple RS unit.
MotoGP is the premier class. It ran 500 cc two-stroke prototypes for decades before admitting 990 cc four-strokes in 2002; from 2003 the two-strokes were phased out entirely. Engine displacement was reduced to 800 cc in 2007, then settled at 1000 cc four-strokes in 2012. All Grand Prix machines are prototypes with no direct production counterpart.
Superbike racing uses modified production motorcycles with four-stroke engines displacing 800 to 1200 cc for twin-cylinder machines and 750 to 1000 cc for four-cylinder machines. The motorcycle's overall silhouette — as viewed from front, rear, and sides — must match the road-going homologated model even though mechanical components are heavily modified.
Supersport racing operates under tighter regulations on similarly derived production machines: four-stroke engines of 250 to 600 cc for four-cylinder configurations and 600 to 750 cc for twins, with engine tuning permitted but tightly controlled. Machines must remain substantially standard compared to Superbikes.
Endurance racing tests equipment durability and rider stamina over long-distance events. Multiple riders share each machine, with driver changes permitted, and races are run either to a set lap-count or to the greatest distance covered within a fixed time.
Sidecar racing pairs a rider and a passenger whose active weight-shifting across the platform is critical to cornering performance. Modern racing sidecars are purpose-built low-slung vehicles very different from the classic bolted-on sidecar look. Sub-disciplines include sidecarcross, sidecar trials, F1/F2 road racing, and historic racing.
Motocross (MX) translates the closed-circuit racing format to non-tarmac surfaces — dirt, sand, mud, grass — typically incorporating significant elevation changes and jump sections. Mass starts of up to 40 riders make the opening corner a defining moment of each race; a separate award, the holeshot, goes to the first rider through. Classes span engine displacements from 50 cc youth machines through 450 cc four-strokes, with additional divisions by rider age, sidecar, and quad/ATV configurations.
Supercross is indoor motocross, staged in stadiums and arenas with dense technical layouts and numerous jumps. In North America supercross became a major spectator sport capable of filling large football and baseball stadiums, driving a distinction between the "indoors" (supercross) and the "outdoors" (motocross).
Supermoto is a crossover discipline combining tarmac road-racing and motocross: the machines are predominantly motocross-derived but fitted with road-racing tyres, and the track blends paved and dirt sections. The distinctive riding style involves rear-wheel slides through tarmac corners with the inside leg extended rather than the knee-down posture of pure road racing.
Traditional enduro — sometimes called Time Card Enduro — focuses on maintaining precise pace over long multi-stage laps of predominantly off-road terrain. Penalties are assessed for arriving at checkpoints early or late, making accuracy as important as speed. Special timed tests punctuate each lap. Events range from three or four hours to multi-day national and world championship rounds where motorcycles are kept in secure overnight parc fermé.
The International Six Days Enduro (formerly the International Six Days Trial) is enduro's equivalent of a World Cup, with national teams competing in a location that rotates around the globe.
Hard Enduro extends the discipline to extreme terrain, gathering elements from hard enduro, classic enduro, cross-country, and beach racing under the FIM Hard Enduro World Championship. The Hare Scramble is a related off-road format run over multiple laps of rugged natural terrain, with the overall winner determined by highest sustained speed across the event.
Cross-country rally events, also called Rallye Raid, cover hundreds of miles of open off-road terrain over multiple days on large-displacement machines. The Dakar Rally is the most famous example: originally running from Western Europe to Dakar in Senegal via the Sahara, it relocated to South America from 2009 to 2019 before moving to the deserts of Saudi Arabia in 2020. The FIM Cross-Country Rallies World Championship encompasses additional events such as the Silk Way Rally, Abu Dhabi Desert Challenge, and Rallye du Maroc.
Speedway is the most prominent track racing form: competitors race anti-clockwise around flat oval circuits of shale or dirt on single-gear, brakeless machines, controlling speed through corners by powersliding — allowing the rear wheel to break traction and slide the bike around the bend. Grasstrack is effectively outdoor speedway on longer circuits (400 metres or more), often on grass, with rear suspension and typically two gears but still no brakes.
Ice speedway applies the same format to oval ice tracks between 260 and 425 metres in length, with metal spikes or screws fitted to tyres for grip. Board track racing, popular in the United States during the 1910s and 1920s, saw competition on oval courses surfaced with wooden planks before fading into obsolescence by the early 1930s.
Flat track racing in North America encompasses miles, half-miles, short tracks, and TT events on dirt ovals, all governed by the AMA Grand National Championship. Machines run specialized Class C tyres resembling street rubber rather than knobby off-road compounds; on mile, half-mile, and short-track ovals only a rear brake is permitted and all turns go left. TT courses introduce at least one right-hand turn and optionally a jump, and allow front brakes.
Drag racing and sprinting pit two riders against each other over a straight quarter-mile paved strip, with elapsed time and terminal speed recorded. Hill climbing tests a single rider against the clock on a steep gradient, either on closed tarmac or off-road terrain. Land speed record events, with the International Motorcycle Speed Trials at the Bonneville Salt Flats as the pre-eminent fixture, classify machines by body style, engine displacement, and fuel type in pursuit of class speed records.
Vintage racing preserves historic motorcycles — generally at least 25 years old — in competition organized by production era and engine displacement, with modern safety equipment and tyres permitted. Classes now extend into 1980s and 1990s machinery as the 25-year threshold advances.
The Fédération Internationale de Motocyclisme oversees motorcycle sport globally and sanctions world championships across the principal disciplines. National bodies include the Auto Cycle Union in the United Kingdom, the American Motorcyclist Association in the United States, Motorcycling Australia, and equivalent organizations in France, Ireland, and South Africa, among others.
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