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In the market, there is a wide variety of types of motorcycles, each with unique characteristics and features. Models vary according to the specific needs of each user, such as ''standard'', ''cruiser'', ''touring'', ''sports'', ''off-road'', ''dual-purpose'', ''scooters'', etc.Scooters are a type of motorcycle: * * * * * * Often, some hybrid types like ''sport touring'' are considered as an additional category. There is no universal system for classifying all types of motorcycles. However, some authors argue that there are generally six categories recognized by most motorcycle manufacturers and organizations, making clear distinctions between these six main types and other motorcycles. For example, scooters, mopeds, underbones, minibikes, pocket bikes, electric bikes such as surrons or talarias or even skark vargs, and three-wheeled motorcycles are often excluded from the main categories within these classifications, but other classification schemes may also include these types of motorcycles. Nevertheless, there are strict classification systems enforced by competitive
motorcycle sport Motorcycle sport is a group of competitive sporting events that involve motorcycles, where riders participate in various disciplines such as racing, stunt riding, trials, and endurance contests. These sports test speed, skill, endurance, and con ...
sanctioning bodies, or legal definitions of a motorcycle established by certain legal jurisdictions for motorcycle registration, emissions,
road traffic safety Road traffic safety refers to the methods and measures, such as traffic calming, to prevent road users from being killed or seriously injured. Typical road users include pedestrians, cyclists, Driving, motorists, passengers of vehicles, and p ...
rules or motorcyclist licensing. There are also informal classifications or nicknames used by manufacturers, riders, and the motorcycling media. Some experts do not recognize sub-types, like naked bike, that "purport to be classified" outside the usual classes, because they fit within one of the main types and are recognizable only by cosmetic changes. Street motorcycles are motorcycles designed for being ridden on paved roads. They have smooth tires with tread patterns and engines generally in the and over range. Typically, street motorcycles are capable of speeds up to , and many of speeds in excess of . Street motorcycles powered by electric motors are becoming more common, with firms like Harley-Davidson entering the market.


Standard

Standard motorcycles (also called roadsters, or naked bikes) are street motorcycles that conform to a stereotypical image of a motorcycle, with an exposed engine and fuel tank above it. Standard bikes typically have neither fairings nor windscreens as OEM attachments (hence the modern usage ''naked bikes''). With handlebars that are set neither high nor low, and footpegs placed neither forward nor "rear-set", standards give an upright rider posture (in-between the semi-recumbent cruiser and the forward crouch of a sport bike). A standard's relationship between footpegs, handlebars and seat gives the rider a comfortable and natural posture. The comfort, ease of control, and safety of standard bikes means that beginner motorcyclists inevitably learn on standard motorcycles; and many experienced riders choose to continue riding this motorcycle type.


Cruiser

Cruiser motorcycles (or simply cruisers) are styled after American motorcycles from the 1930s to the early 1960s, such as those made by
Harley-Davidson Harley-Davidson, Inc. (H-D, or simply Harley) is an American motorcycle manufacturer headquartered in Milwaukee, Wisconsin. Founded in 1903, it is one of two major American motorcycle manufacturers to survive the Great Depression along with i ...
, Indian, and Excelsior-Henderson. Harley-Davidsons largely define the cruiser category, and large-
displacement Displacement may refer to: Physical sciences Mathematics and physics *Displacement (geometry), is the difference between the final and initial position of a point trajectory (for instance, the center of mass of a moving object). The actual path ...
V-twin A V-twin engine, also called a V2 engine, is a two-cylinder piston engine where the cylinders are arranged in a V configuration and share a common crankshaft. The V-twin is widely associated with motorcycles, primarily installed longitudinally ...
engines are the norm, although other engine configurations and small to medium displacements also exist. Their engines are tuned for low-end torque, making them less demanding to ride because it is not necessary to shift as frequently to accelerate or maintain control. The riding position places the feet forward and the hands are up relatively high, so that the spine is erect or leaning back slightly. At low to moderate speeds, cruisers are more comfortable than other styles, but riding for long periods at freeway speeds can lead to fatigue from pulling back on the handlebars to resist the force of the wind against the rider's chest. Cruisers have limited cornering ability due to a lack of ground clearance. Choppers are a type of cruiser, so called because they are a "chopped", or cut-down, version of a production cruiser. Choppers are usually custom projects that result in a bike modified to suit the owner's ideals, and, as such, are a source of pride and accomplishment. Stereotypically, a chopper may have raked-out forks, small fuel tanks and high handlebars. Choppers were popularised in the
Peter Fonda Peter Henry Fonda (February 23, 1940 – August 16, 2019) was an American actor, film director, and screenwriter. He was a two-time Academy Award nominee, both for acting and screenwriting, and a two-time Golden Globe Award winner for his a ...
film ''
Easy Rider ''Easy Rider'' is a 1969 American road drama film written by Peter Fonda, Dennis Hopper, and Terry Southern. It was produced by Fonda and directed by Hopper. Fonda and Hopper play two bikers who travel through the American Southwest and the S ...
''. Being designed primarily for visual effect, choppers will rarely be suitable for lengthy cruising. Related to the chopper motorcycle is the bobber, a solo bike which is created by "bobbing" a factory bike by removing superfluous weight and bodywork from a motorcycle to reduce mass and increase performance. A common element of these motorcycles is a shortened rear fender that creates a "bobbed" look. Power cruiser is a name used to distinguish bikes in the cruiser class that have significantly greater levels of power. They typically have with upgraded brakes and suspensions, better ground clearance, and premium surface finishes, as well as more exotic or non-traditional styling.


Touring

Although any motorcycle can be equipped and used for touring, touring motorcycles are specifically designed to excel at covering long distances. They have large-displacement engines, fairings and screens that offer good weather and wind protection, large-capacity fuel tanks for long ranges between fill-ups, and a relaxed, upright seating position. Passenger accommodation is excellent and expansive luggage space is the norm for this class. Such bikes can have
wet weight Motorcycle testing and measurement includes a range of more than two dozen statistics giving the specifications of the motorcycle, and the actual performance, expressed by such things as the output of the engine, and the top speed or accelerati ...
s of and top fully loaded with a rider, passenger and gear. Bagger, full dresser, full dress tourer, or dresser are various names for touring motorcycles, sometimes used disparagingly or jocularly, and originally referring to a Harley-Davidson or other cruisers with full sets of saddlebags. This can now refer to any touring motorcycle.


Sport

Sport bikes are road bikes that emphasize top speed, acceleration, braking, handling and grip, ("…a powerful, lightweight motorcycle, designed for optimal speed and handling" ) typically at the expense of comfort and fuel economy in comparison to other motorcycle types. Sport bikes have comparatively high performance engines supported within a lightweight frame.
Inline-four engine A straight-four engine (also referred to as an inline-four engine) is a four-cylinder piston engine where cylinders are arranged in a line along a common crankshaft. The majority of automotive four-cylinder engines use a straight-four layout ( ...
s dominate the sport bike category, with
V-twin A V-twin engine, also called a V2 engine, is a two-cylinder piston engine where the cylinders are arranged in a V configuration and share a common crankshaft. The V-twin is widely associated with motorcycles, primarily installed longitudinally ...
s and parallel twins having a significant presence; and most other engine configurations appear in small numbers at times. High-performance braking systems may use upgraded brake pads, multi-piston calipers and larger vented rotors. Sports bike suspension systems may be more sophisticated, with greater adjustments for compression and rebound. Sport bikes have fairings to completely enclose the engine, along with windscreens that effectively deflect the air at high speeds away from the rider, thereby minimising overall drag. Sport bikes may have footpegs that are both higher and set further back than on a standard bike, improving ground clearance when cornering and enabling a more prone position for the rider. There may be a long reach to the hand controls, which positions the body and center of gravity forward, above the fuel tank. The rider leans forward into the wind, the force of which may support the rider's weight at high speeds. However, at lower speeds a rider may experience excessive weight on the arms and wrists, causing fatigue. is a nickname for a motorcycle type, derived from a sport bike design, that puts a disproportionately high priority on engine power. Streetfighters are derived from sport bikes, originally being customized sport bikes with the fairings removed and higher handlebars replacing the low clip-on handlebars. Since the 1990s, factory streetfighters have been produced. As with naked bike and muscle bike (below), the name streetfighter is used to help clarify the middle ground occupied by designs that blend elements of both sport bikes and standards.


Off-road

Off-road motorcycles, also known as dirt bikes or scramblers, specially designed for
off-road Off-roading is the act of driving or riding in a vehicle on unpaved surfaces such as sand, dirt, gravel, riverbeds, mud, snow, rocks, or other natural terrain. Off-roading ranges from casual drives with regular vehicles to competitive events w ...
use. The term off-road refers to driving surfaces that are not conventionally paved. These are rough surfaces, often created naturally, such as sand, gravel, a river, mud or snow. These types of terrain can sometimes only be travelled on with vehicles designed for off-road driving (such as SUVs, ATVs,
snowmobile A snowmobile, also known as a snowmachine (chiefly Alaskan), motor sled (chiefly Canadian), motor sledge, skimobile, snow scooter, or simply a sled is a motorized vehicle designed for winter travel and recreation on snow. Their engines normally ...
s and
mountain bike A mountain bike (MTB) or mountain bicycle is a bicycle designed for off-road cycling (''mountain biking''). Mountain bikes share some similarities with other bicycles, but incorporate features designed to enhance durability and performance in r ...
s in recent decades, and
minibikes A minibike is a two-wheeled, motorized, off-highway recreational vehicle popularized in the 1960s and 1970s, but available continuously from a wide variety of manufacturers since 1959. Their off-highway nature and (in many countries) typically ent ...
even earlier) or vehicles are designed to better handle off-road conditions. Compared to road-going motorcycles, off-road machines are lighter and more flexible, typically having long suspension travel, high ground clearance, and are geared higher to provide more torque in off-road situations. Wheels (usually 21" front, 18" rear) have knobby tires, often clamped to the rim with a rim lock. Many competitive events have emerged and developed into a variety of off-road
motorcycle sport Motorcycle sport is a group of competitive sporting events that involve motorcycles, where riders participate in various disciplines such as racing, stunt riding, trials, and endurance contests. These sports test speed, skill, endurance, and con ...
s, for which a number of specialized motorcycles have been built: *
Motocross Motocross is a form of off-road motorcycle racing held on enclosed off-road circuits. The sport evolved from motorcycle trials competitions held in the United Kingdom. History Motocross first evolved in Britain from motorcycle trials competi ...
- Such bikes are raced on short, closed off-road tracks with a variety of obstacles. The motorcycles have a small fuel tank for lightness and compactness. Long-travel suspension allows riders to take jumps at high speed. Motocross engines are single-cylinder
two-stroke A two-stroke (or two-stroke cycle) engine is a type of internal combustion engine that completes a power cycle with two strokes of the piston, one up and one down, in one revolution of the crankshaft in contrast to a four-stroke engine which re ...
or
four-stroke A four-stroke (also four-cycle) engine is an internal combustion (IC) engine in which the piston completes four separate strokes while turning the crankshaft. A stroke refers to the full travel of the piston along the cylinder, in either directio ...
units, which vary in size from 50cc up to about 500cc. At the professional level, bikes are split up into two levels based on their displacements: MX and MX Lite. The MX Lite class contains 125cc two-stroke
engines An engine or motor is a machine designed to convert one or more forms of energy into mechanical energy. Available energy sources include potential energy (e.g. energy of the Earth's gravitational field as exploited in hydroelectric power gen ...
and 250cc four-stroke engines, while the MX class pits 250cc two-stroke engines against 450cc four-stroke engines. The actual displacement for both four-strokes and two-strokes can be under what is listed for the different bikes. The differences in power,
displacement Displacement may refer to: Physical sciences Mathematics and physics *Displacement (geometry), is the difference between the final and initial position of a point trajectory (for instance, the center of mass of a moving object). The actual path ...
, torque, and weight are all variables that balance the competition between two-stroke and four-stroke engines. Motocross sidecar outfits have bigger engines, usually four-stroke and often twin-cylinder. Motocross bikes are also used in
freestyle motocross Freestyle motocross (also known as FMX) is a variation on the sport of motocross in which motorcycle riders attempt to impress judges with jumps and stunts. The two main types of freestyle events are: *Big air (also known as "best trick"), in wh ...
. * Trials - A specialized form of off-road competition testing balancing skills and precision rather than speed. For a trials bike, low weight and crisp throttle response power are prioritized, so trials bikes tend to have a small (125 cc to 300 cc) engine, with two-strokes being common. During the trial, the rider stands on the foot-pegs, so a trials bike will have only a vestigial seat, or no seat at all. Fuel tanks are very small, giving a very limited range. A trials bike is usually considered the best to start riding off-road because of its low seat and light weight. Trials bikes are designed to tackle obstacles which would be impossible for other kinds of motorcycle. *
Enduro Enduro is a form of motorcycle sport run on extended cross-country, off-road courses. Enduro consists of many different obstacles and challenges. The main type of enduro event, and the format to which the World Enduro Championship is run, is ...
- A modified and road-legal motocross bike which is something between a Trial motorcycle and Motocross, having the addition of a horn, lights, effective silencing and a number plate. Enduro riders compete over a longer course (which may include roads); and an enduro event may last between one day and six days (such as the International Six Days Enduro). Some enduro events (known as "multi-lappers") are held on rather shorter circuits, not unlike scramble tracks. "Multi-lappers" are especially popular with novice riders. ** Hard Enduro–Enduro bike with more focus on durability, lighter weight, agility and low-end torque. *
Rally raid Rally raid is a type of off-road motorsport event competed with different types of vehicles. Along with shorter Baja (cross-country rally), baja rallies, rally raid constitutes cross-country rallying. Both the Fédération Internationale de l'Aut ...
, or "rallies"—A special type of enduro bike with a significantly larger fuel tank for very long distance racing, typically through deserts (e.g.
Paris-Dakar rally The Dakar Rally () or simply "The Dakar" (), formerly known as the Paris–Dakar Rally (), is an annual rally raid organised by the Amaury Sport Organisation (ASO). It is an off-road endurance event traversing terrain much tougher than conventi ...
). Engine capacities tend to be larger, usually between 450 cc and 750 cc. * Hill Climb–Longer wheelbase to prevent backflip,
paddle A paddle is a handheld tool with an elongated handle and a flat, widened end (the ''blade'') used as a lever to apply force onto the bladed end. It most commonly describes a completely handheld tool used to propel a human-powered watercraft by p ...
or spiked tyres. Unlike the small screws/studs found on snow tyres, each spike is 4cm long and 1cm thick, bolted on with two washers on interior and exterior of tyre. 1, 2 or 3 in a row, spaced equidistantly around the circumference of a tyre. * Dual-Sport—A dual-sport bike is a multi-purpose bike, made for on-road and recreational off-road riding. A dual-sport bike may resemble an enduro bike, but since a dual-sport bike is not intended to be used for competition, it may be less rugged, and equipped with dual-purpose tires and with more road legal equipment, such as indicators, mirrors and extra instruments. Most dual-sport bikes require a number plate to be ridden on state and county roads. *
Track racing Track racing is a form of motorcycle racing where teams or individuals race opponents around an unpaved oval track. There are differing variants, with each variant racing on a different surface type. The most common variant is Speedway which h ...
—High-speed oval racing, typically with no brakes, nor rear suspension. The engines, fueled by methanol, are long-stroke four-stroke singles, such as
JAP ''Jap'' is an English abbreviation of the word " Japanese". In the United States, some Japanese Americans have come to find the term offensive because of the internment they suffered during World War II. Before the attack on Pearl Harbor, ''Jap ...
and Jawa. They have at most two gears. Some types, such as speedway, and grass-track bikes, are designed to take left turns only. * Snow bikes—A snow bike takes a typical dirt-bike and replaces the rear wheel with a single tread system similar to a
snowmobile A snowmobile, also known as a snowmachine (chiefly Alaskan), motor sled (chiefly Canadian), motor sledge, skimobile, snow scooter, or simply a sled is a motorized vehicle designed for winter travel and recreation on snow. Their engines normally ...
and the front wheel with a large ski. They are much smaller and more nimble than a snowmobile, and they have a tighter turning radius, which lets the rider go where many snowmobiles cannot. The first prototype of motorcycles with a rear tread date all the way back to the 1920s, with failed attempts to bring them onto the market until recent times. Many motorcycles made after the 1990s or later can be fitted with a kit that transforms them into a snow bike.


Dual-purpose

Dual-purpose motorcycles, sometimes called dual-sport, on/off-road motorcycles, or adventure motorcycles, are street legal machines that are also designed to enter off-road situations. Typically based on a dirt bike chassis, they have added lights, mirrors, signals, and instruments that allow them to be licensed for public roads. They are higher than other street bikes, with a high center of gravity and tall seat height, allowing good suspension travel for rough ground. Adventure motorcycles (ADV) are motorcycles with touring capability on paved and unpaved roads. As a dual-sport they have a significant on-pavement bias and perform well on pavement at higher speeds unlike most dual-sports. Their size, weight and sometimes their tires, however, limits their off-road capability. Most adventure motorcycles function well on graded dirt and gravel roads but are less than ideal on more difficult off-pavement terrain. Supermoto motorcycles were designed to compete on a single course that alternated between three genres of
motorcycle racing The motorcycle sport of racing (also called moto racing and motorbike racing) includes motorcycle road racing and off-road racing, both either on circuits or open courses, and track racing. Other categories include hill climbs, drag racing and ...
:
road racing Road racing is a North American term to describe motorsport racing held on a paved road surface. The races can be held on a race track, closed circuit—generally, a purpose-built racing facility—or on a street circuit that uses temporarily c ...
,
track racing Track racing is a form of motorcycle racing where teams or individuals race opponents around an unpaved oval track. There are differing variants, with each variant racing on a different surface type. The most common variant is Speedway which h ...
, and
motocross Motocross is a form of off-road motorcycle racing held on enclosed off-road circuits. The sport evolved from motorcycle trials competitions held in the United Kingdom. History Motocross first evolved in Britain from motorcycle trials competi ...
. This increasingly popular type of motorcycle is often a dual-sport that has been fitted by the manufacturer with smaller rims and road tires. Supermotos are quickly gaining popularity as street bikes due to their combination of light weight, durability, relatively low cost, and sporty handling.


Sport touring

Sport touring motorcycles combine attributes of sport bikes and touring motorcycles. The rider posture is less extreme than a sport bike, giving greater long-distance comfort. Accommodation for a passenger is superior to a sport bike as well, along with increased luggage capacity. Being lighter, at wet, than a pure touring bike and often having racier engines, suspensions, and brakes, sport tourers corner better and are more at home being aggressively ridden on curvy canyon roads. The distinction between touring and sport touring is not always clear as some manufacturers will list the same bike in either category in different markets. The Honda ST1300 Pan-European, for example, was listed by Honda as a sport touring motorcycle in the United States and Australia, but as a touring motorcycle in Europe.


Scooters

Scooters are a type of motorcycle distinguished by their continuously variable automatic transmission (CVT) and distinctive design. Unlike traditional motorcycles, scooters feature an open frame structure, a seat, and a flat foot platform, allowing the rider to maintain an upright posture without straddling the engine. This configuration not only enhances rider comfort but also contributes to
fuel efficiency Fuel efficiency (or fuel economy) is a form of thermal efficiency, meaning the ratio of effort to result of a process that converts chemical energy, chemical potential energy contained in a carrier (fuel) into kinetic energy or Mechanical work, w ...
. Currently, three main types of scooters are recognized, each with its own characteristics and applications: Standard scooter: This type of scooter is ideal for urban mobility due to its ease of handling and parking. They are lightweight, comfortable, and agile vehicles, perfect for navigating through dense city traffic. Their wheels are usually smaller than those of conventional motorcycles, with diameters ranging from 12 to 15 inches (30.5−38 cm), and they have an engine displacement ranging from 50cc to 150cc (3.1−9.2 cu in). Maxi-scooter: Maxi-scooters are equipped with high-displacement engines, ranging from 125cc to 250cc (7.7–15.3 cu in), designed for covering long distances at high speeds. Although they are heavier and less agile than standard scooters, they are commonly used in cities and suburbs due to their larger fuel tank capacity and larger wheels, which can reach 15 or even 16 inches (38.1−40.7 cm). Mega-scooter: also known as touring scooters, like maxi-scooters, mega-scooters feature a higher-displacement engine, ranging from 400cc to 850cc (24.5−51.9 cu in), and superior performance, designed for covering long distances at high speeds. However, their considerably greater weight and lower agility make them less suitable for use in the city than on highways. A scooter is considered to fall into the mega-scooter category when its displacement exceeds 400cc. File:Lambretta scooter racing at 3 sisters.jpg,
Road racing Road racing is a North American term to describe motorsport racing held on a paved road surface. The races can be held on a race track, closed circuit—generally, a purpose-built racing facility—or on a street circuit that uses temporarily c ...
a
Lambretta Lambretta () was a brand of motor scooters, manufactured in Milan, Italy, by Innocenti. The name is derived from the word Lambrate, the suburb of Milan named after the river Lambro which flows through the area, and where the factory was locat ...
standard scooter File:Wuling Visitor Center and Honda NSS300 20200711.jpg, Maxi-scooter Honda NSS250 File:Yamaha TMAX 2011 Tokyo Motor Show.jpg, Mega-scooter Yamaha TMAX


Underbones and mopeds

Underbones are small-displacement motorcycles with a step-through frame, descendants of the original
Honda Super Cub The Honda Super Cub (or Honda Cub) is a Honda underbone motorcycle with a four-stroke engine, four-stroke single cylinder engine, single-cylinder engine ranging in engine displacement, displacement from . In continuous manufacture since 1958 wit ...
. They are differentiated from scooters by their larger wheels and their use of footpegs instead of a floorboard. They often have a gear shifter with an automatic clutch. The
moped A moped ( ) is a type of small motorcycle, generally having a less stringent licensing requirement than full motorcycles or automobiles. Historically, the term exclusively meant a similar vehicle with both bicycle pedals and a motorcycle eng ...
used to be a hybrid of the
bicycle A bicycle, also called a pedal cycle, bike, push-bike or cycle, is a human-powered transport, human-powered or motorized bicycle, motor-assisted, bicycle pedal, pedal-driven, single-track vehicle, with two bicycle wheel, wheels attached to a ...
and the motorcycle, equipped with a small engine (usually a small
two-stroke engine A two-stroke (or two-stroke cycle) engine is a type of internal combustion engine that completes a Thermodynamic power cycle, power cycle with two strokes of the piston, one up and one down, in one revolution of the crankshaft in contrast to a f ...
up to 50 cc, but occasionally an
electric motor An electric motor is a machine that converts electrical energy into mechanical energy. Most electric motors operate through the interaction between the motor's magnetic field and electric current in a electromagnetic coil, wire winding to gene ...
) and a bicycle drivetrain, and motive power can be supplied by the engine, the rider, or both. There are also Sport mopeds – a type of moped that resembles a
sport bike A sports motorcycle, sports bike, or sport bike is a motorcycle designed and optimized for speed, acceleration, braking, and cornering on asphalt concrete race tracks and roads. They are mainly designed for performance at the expense of comfort, ...
. In many places, mopeds are subject to less stringent licensing than bikes with larger engines and are popular as very cheap motorbikes, with the pedals seeing next to no use. Mopeds were very popular in the United States during the fuel-crisis of the late 1970s and early 1980s, but their popularity has fallen off sharply since the mid-1980s. In response to rising fuel prices in the first decade of the 2000s, U.S. scooter and moped ridership saw a resurgence. Sales of motorcycles and scooters declined 43.2% in 2009, and continued to decrease in the first quarter of 2010, with scooter sales doing worst, down 13.3% compared to a 4.6% drop for all two-wheelers. Other types of small motorcycles include the
minibike A minibike is a two-wheeled, motorized, off-highway recreational vehicle popularized in the 1960s and 1970s, but available continuously from a wide variety of manufacturers since 1959. Their off-highway nature and (in many countries) typically ent ...
, monkey bike,
Welbike The Welbike is a British single-seat folding motorcycle produced during World War II at the direction of Station IX — the "Inter Services Research Bureau" — based at Welwyn, UK, for use by Special Operations Executive (SOE). It has the di ...
, pocketbike, and
pit bike A pit bike is a small motorcycle, used primarily for recreational purposes, stunt riding and motocross racing. Pit bikes are characterised by small, air-cooled engines, and are rarely used for professional racing, instead being intended for use i ...
.


Enclosed and feet forwards

Enclosed motorcycles include
cabin motorcycle A cabin motorcycle is a fully or semi-enclosed motorcycle. They first appeared in the 1920s In parts of Eastern Europe, they are known as dalniks. These fully enclosed non-production motorcycles used for motorcycle land-speed record, land-spee ...
s and streamliner motorcycles. Feet forwards motorcycles include the 1911 Wilkinson TMC and the 1918 Ner-A-Car. Contemporary examples include the
Quasar A quasar ( ) is an extremely Luminosity, luminous active galactic nucleus (AGN). It is sometimes known as a quasi-stellar object, abbreviated QSO. The emission from an AGN is powered by accretion onto a supermassive black hole with a mass rangi ...
, powered by a Reliant Robin engine, and the Peraves range powered mainly by BMW K Series engines.


Utility

Some motorcycles are specially adapted for specific job functions, such as those used by the
ambulance An ambulance is a medically-equipped vehicle used to transport patients to treatment facilities, such as hospitals. Typically, out-of-hospital medical care is provided to the patient during the transport. Ambulances are used to respond to ...
,
blood bike A blood bike is a specialist motorcycle modified for use as a courier vehicle for the prompt transportation of urgent and emergency medical items; primarily including blood, and also including X-rays, tissue samples, surgical tools, human milk ...
s,
fire Fire is the rapid oxidation of a fuel in the exothermic chemical process of combustion, releasing heat, light, and various reaction Product (chemistry), products. Flames, the most visible portion of the fire, are produced in the combustion re ...
, and military services, and for specialized delivery services, such as pizza deliveries. Beginning in the 1960s with the
Mountain Goat The mountain goat (''Oreamnos americanus''), also known as the Rocky Mountain goat, is a cloven-footed mammal that is endemic to the remote and rugged mountainous areas of western North America. A subalpine to truly alpine species, it is a s ...
specialized motorcycles were developed for use on farms. The Motocrotte (or ''cainette'') was used in Paris to collect dog waste with vacuum suction in the 1980s and 1990s, and was still in use in other French cities as of 2016. A
derny A Derny is a motorized bicycle for motor-paced cycling events such as during six-day and Keirin racing and motor-paced road races. Some riders train behind a derny on the road. The Derny is so-called as it was originally produced by the Fren ...
is a
motorized bicycle A motorized bicycle is a bicycle with an motor or engine and transmission used either to power the vehicle unassisted, or to assist with pedalling. Since it sometimes retains both pedals and a discrete connected drive for rider-powered propu ...
used for motor-paced cycling events.


Tricycles

While motorcycles typically have two wheels, some motorized tricycles are classed as three-wheeled motorcycles. Some brands have made various types of three-wheelers direct from the factory. Most of these vehicles are treated as motorcycles for registration or licensing purposes. Tilting three-wheelers keep all three wheels on the ground when they lean to negotiate curves. These include Honda's
Gyro Gyro may refer to: Science and technology * GYRO, a computer program for tokamak plasma simulation * Gyro Motor Company, an American aircraft engine manufacturer * '' Gyrodactylus salaris'', a parasite in salmon * Gyroscope, an orientation-sta ...
range, all of which have a front wheel that leans and a pair of rear wheels that do not, and the Piaggio MP3, which has two front wheels and a single rear wheel, all of which lean. The Yamaha Niken is also a tilting three wheeler but has smaller track width such that it is considered a motorcycle by some authorities.


See also

*
List of motorcycle manufacturers The following is a list of motorcycle manufacturers worldwide, sorted by extant/extinct status and by country. These are producers whose motorcycles are available to the public, including both street-legal vehicle, street legal as well as motorcycl ...
*
List of motorized trikes Motorized tricycles, also called trikes, are sometimes considered cars. There are three typical configurations: motorized bicycle with sidecar; two wheels in the rear, one in the front (aka trike); and two in front, one in the rear (aka reverse ...
*
List of scooter manufacturers A Scooter (motorcycle), scooter (also known by the full name motor-scooter), is a subset of motorcycles with a step-through frame and a floor or similar for the rider's feet (as opposed to straddling the vehicle like a conventional motorcycle). Ot ...
*
Motorcycling Motorcycling is the act of riding a motorcycle. For some people, motorcycling may be the only affordable form of individual motorized transportation, and small-engine displacement, displacement motorcycles are the most common motor vehicle in ...
* Outline of motorcycles and motorcycling


Notes


References

{{DEFAULTSORT:Types Of Motorcycles *