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Fuel economy
Motorcycle fuel economy varies greatly with engine displacement and riding style[27] ranging from a low of 29 mpg-US (8.1 L/100 km; 35 mpg-imp) reported by a Honda VTR1000F rider,[28] to 107 mpg-US (2.20 L/100 km; 129 mpg-imp) reported for the Verucci Nitro 50 cc Scooter.[29]
A specially designed Matzu Matsuzawa Honda XL125 achieved 470 mpg-US (0.50 L/100 km; 560 mpg-imp) "on real highways - in real conditions."[30] Due to lower engine displacements (100 cc'200 cc), motorcycles in developing countries offer good fuel economy.[citation needed] In the Indian market, the second most selling company, Bajaj, offers two models with superior fuel economy: XCD 125 and Platina. Both are 125 cc motorbikes with a company-claimed fuel economy of 256 mpg-US (0.919 L/100 km; 307 mpg-imp) and 261 mpg-US (0.901 L/100 km; 313 mpg-imp), respectively.[citation needed]
[edit] Electric motorcycles Main article: Electric motorcycleVery high fuel economy equivalents can be derived by electric motorcycles. Electric motorcycles are nearly silent, zero-emission electric motor-driven vehicles. Operating range and top speed suffer because of limitations of battery technology.[citation needed] Fuel cells and petroleum-electric hybrids are also under development to extend the range and improve performance of the electric motors.
[edit] Dynamics
Racing motorcycles leaning in a turn. Main article: Bicycle and motorcycle dynamics Different types of motorcycles have different dynamics and these play a role in how a motorcycle performs in given conditions. For example, a longer wheelbase provides more stability in a straight line.[31] Motorcycle tyres have a large influence over handling.
Motorcycles must be leaned in order to make turns. This lean is induced by the method known as countersteering, in which the rider steers the handlebars in the direction opposite of the desired turn. Because it is counter-intuitive this practice is often very confusing to novices'and even to many experienced motorcyclists.[32]
Short wheelbase motorcycles, such as sport bikes, can generate enough torque at the rear wheel, and enough stopping force at the front wheel, to lift the opposite wheel off the pavement. These actions, if performed on purpose, are known as wheelies and stoppies respectively. If carried past the point of recovery the resulting upset is known as "looping" the vehicle.
[edit] Accessories
Main article: Motorcycle accessoriesVarious features and accessories may be attached to a motorcycle either as OEM (factory-fitted) or after-market. Such accessories are selected by the owner to enhance the motorcycle's appearance, safety, performance, or comfort, and may include anything from mobile electronics to sidecars and trailers.
[edit] Social aspects
Main article: Motorcycling[edit] Popularity
Motorbikes are the primary form of transportation in Vietnam. In many cultures, motorcycles are the primary means of motorised transport. According to the Taiwanese government, for example, "the number of automobiles per ten thousand population is around 2,500, and the number of motorcycles is about 5,000."[33] In places such as Vietnam, motorcycle use is extremely high due to a lack of public transport and low income levels that put automobiles out of reach for many.[3] In Vietnam, motorised traffic consist of mostly motorbikes.[4] The four largest motorcycle markets in the world are all in Asia: China, India, Indonesia, and Vietnam.[3] The motorcycle is also popular in Brazil's frontier towns.[5] Amid the global economic downturn of 2008, the motorcycle market grew by 6.5%.[34]
Recent years have seen an increase in the popularity of motorcycles elsewhere. In the USA, registrations increased by 51% between 2000 and 2005.[35] This is mainly attributed to increasing fuel prices and urban congestion,[36] but is also partly due to television programmes such as reality show American Chopper, or adventure-travel shows such as Long Way Down.[citation needed]
[edit] Subcultures
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