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Imme R100

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Fritz Fend (April 14, 1920 in Rosenheim – November 22, 2000) was an aeronautical engineer. He was noted for designing Messerschmitt 's Kabinenroller (cabinscooter) KR175 and KR200 microcars , for co-founding FMR, the company that took over production of the Kabinenrollers in 1956, and for designing the FMR Tg500 , a sports microcar based on the Kabinenroller. Fend continued his career as an inventor and designer after the KR200 ended production. Fend was working on another lightweight vehicle project shortly before his death.

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68-529: The Imme R100 was a lightweight motorcycle made by Riedel AG from 1948 to 1951. It is noted for its simple and innovative design with many advanced features. With low cost and technical innovation, the R100 sold well, but reliability problems and low profit margins resulted in warranty costs driving Riedel AG into bankruptcy. The advanced specification of the Imme R100 caused it to be highly regarded. The R100

136-418: A manual five- or six-speed sequential transmission drives the swingarm -mounted rear wheel by a chain , driveshaft , or belt . The repair can be done using a Motorcycle lift . Motorcycle fuel economy varies greatly with engine displacement and riding style. A streamlined, fully faired Matzu Matsuzawa Honda XL125 achieved 470 mpg ‑US (0.50 L/100 km; 560 mpg ‑imp ) in

204-545: A 150 cc parallel twin two-stroke engine had been made. Fritz Philipps, who had been a senior executive at Riedel AG, formed Zweirad-Motoren und -Getriebe GmbH (ZMG) to supply parts and perform repairs on Imme motorcycles. ZMG also set up to manufacture an Imme with a 175 cc straight-twin two-stroke engine, but made only 25 before they ended production. The Imme R100 is noted for its simple and innovative design. Its advanced features include single-sided suspension front and rear, interchangeable wheels front and rear with

272-585: A choice of colours including lime green and gloss black. Production of the Imme R100 had gone up to 1,000 per month and, by the autumn of 1950, more than 10,000 had been sold. Imme engines were also sold to Fritz Fend , to power his Fend Flitzer invalid carriages . These replaced the Fichtel & Sachs engines used in earlier versions of the Flitzer. However, the Imme began to develop problems, especially with

340-811: A full motorcycle licence or endorsement for completing a Motorcycle Safety course varies by province. Without the Motorcycle Safety Course the chance of getting insurance for the motorcycle is very low. The Canada Safety Council , a non-profit safety organisation, offers the Gearing Up program across Canada and is endorsed by the Motorcycle and Moped Industry Council. Training course graduates may qualify for reduced insurance premiums. Motorcyclists and motor scooter riders are also exposed to an increased risk of suffering hearing damage such as hearing loss and tinnitus (ringing ears). The noise

408-542: A larger, two-passenger car based on the concepts of the Flitzer. With mass production in mind, Fend approached Willy Messerschmitt with a proposal for Messerschmitt AG to build a more developed version of the Fend 150. Messerschmitt, needing products to build to keep his factories working, accepted the Fend 150, which was still being developed, and the Lastenroller, which was put into production. The development of

476-572: A long suspension travel and a soft spring rate. Test rides on the complete prototype began in December 1947 and showed that the combination of long travel and soft springs needed damping . Friction dampers were added. Norbert Riedel registered Riedel AG in 1948. He moved his facilities from Muggendorf to Immenstadt and began production there in June 1948. It is widely believed that the name "Imme" came from an abbreviation of this location, and that

544-798: A method of transport: in 2021, approximately 58.6 million new motorcycles were sold around the world, while 66.7 million cars were sold over the same period. In 2022, the top four motorcycle producers by volume and type were Honda , Yamaha , Kawasaki , and Suzuki . According to the US Department of Transportation , the number of fatalities per vehicle mile traveled was 37 times higher for motorcycles than for cars. The term motorcycle has different legal definitions depending on jurisdiction (see § Legal definitions and restrictions ). There are three major types of motorcycle: street, off-road, and dual purpose. Within these types, there are many sub-types of motorcycles for different purposes. There

612-673: A motorcycle ( German : Motorrad ). Excelsior Motor Company , originally a bicycle manufacturing company based in Coventry , England , began production of their first motorcycle model in 1896. The first production motorcycle in the US was the Orient-Aster, built by Charles Metz in 1898 at his factory in Waltham, Massachusetts . In the early period of motorcycle history, many producers of bicycles adapted their designs to accommodate

680-414: A motorcycle either as OEM (factory-fitted) or aftermarket . 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 . Motorcycles have a higher rate of fatal accidents than automobiles or trucks and buses. United States Department of Transportation data for 2005 from

748-402: A role in how a motorcycle performs in given conditions. For example, one with a longer wheelbase provides the feeling of more stability by responding less to disturbances. 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 momentarily steers the handlebars in

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816-462: A version that was powered by a 38 cc (2.3 cu in) Victoria two-stroke engine . Fend then designed and built the Fend Flitzer, an invalid carriage designed from the start to be powered by an engine. He reversed the layout of his original tricycle, giving the Flitzer two front wheels and one rear wheel. As with usual convention, the front wheels were steered while the rear wheel

884-495: Is 43.47 which is 28 times higher than for cars (37 times more deaths per mile travelled in 2007). Furthermore, for motorcycles the accident rates have increased significantly since the end of the 1990s, while the rates have dropped for passenger cars. The most common configuration of motorcycle accidents in the United States is when a motorist pulls out or turns in front of a motorcyclist, violating their right-of-way. This

952-540: Is a portmanteau of moped and kuli ( coolie ). Fend developed the four-wheeled, twin-cylinder FMR Tg500 from the platform that had begun with the KR175. The front suspension, monocoque, and bodywork ahead of the rear sub-frame were derived from the KR200, but the rear sub-frame bore a newly designed suspension and drivetrain with twice the number of wheels and an engine with twice the number of cylinders and more than twice

1020-439: Is caused by wind noise while riding, rolling noise from the tyres and the engine itself. The helmet only provides insufficient protection against high sound pressure levels. Medicine (as of 2024) is not able to cure hearing damage. Wearing hearing protection, such as special earplugs for motorcyclists, can help prevent hearing damage. The motorcyclist's riding position depends on rider body-geometry ( anthropometry ) combined with

1088-560: Is increasingly problematic. The first (petroleum fueled) internal-combustion motorcycles, like the German Reitwagen , were, however, also the first practical motorcycles. If a two-wheeled vehicle with steam propulsion is considered a motorcycle, then the first motorcycles built seem to be the French Michaux-Perreaux steam velocipede which patent application was filed in December 1868, constructed around

1156-634: Is necessary to pass the basic motorcycle licence test. These include the Institute of Advanced Motorists (IAM) and the Royal Society for the Prevention of Accidents (RoSPA). Along with increased personal safety, riders with these advanced qualifications may benefit from reduced insurance costs In South Africa, the Think Bike campaign is dedicated to increasing both motorcycle safety and

1224-493: Is often a racing counterpart to each type, such as road racing and street bikes, or motocross including dirt bikes. Street bikes include cruisers , sportbikes , scooters and mopeds , and many other types. Off-road motorcycles include many types designed for dirt-oriented racing classes such as motocross and are not street legal in most areas. Dual purpose machines like the dual-sport style are made to go off-road but include features to make them legal and comfortable on

1292-534: Is on permanent display at the Barber Vintage Motorsports Museum. Motorcycle A motorcycle ( motorbike , bike , or, if three-wheeled, a trike ) is a two or three-wheeled motor vehicle steered by a handlebar from a saddle-style seat. Motorcycle designs vary greatly to suit a range of different purposes: long-distance travel, commuting , cruising , sport (including racing ), and off-road riding. Motorcycling

1360-510: Is riding a motorcycle and being involved in other related social activities such as joining a motorcycle club and attending motorcycle rallies . The 1885 Daimler Reitwagen made by Gottlieb Daimler and Wilhelm Maybach in Germany was the first internal combustion, petroleum -fueled motorcycle. In 1894, Hildebrand & Wolfmüller became the first series production motorcycle. Globally, motorcycles are comparable numerically to cars as

1428-477: Is sometimes called a SMIDSY , an acronym formed from the motorists' common response of "Sorry mate, I didn't see you". Motorcyclists can anticipate and avoid some of these crashes with proper training, increasing their visibility to other traffic, keeping to the speed limits, and not consuming alcohol or other drugs before riding. The United Kingdom has several organisations dedicated to improving motorcycle safety by providing advanced rider training beyond what

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1496-487: Is the 1958 Honda Super Cub , which went on to become the biggest selling vehicle of all time, with its 60 millionth unit produced in April 2008. Today, this area is dominated by mostly Indian companies with Hero MotoCorp emerging as the world's largest manufacturer of two wheelers. Its Splendor model has sold more than 8.5 million to date. Other major producers are Bajaj and TVS Motors . Motorcycle construction

1564-585: Is the engineering, manufacturing, and assembly of components and systems for a motorcycle which results in the performance, cost, and aesthetics desired by the designer. With some exceptions, construction of modern mass-produced motorcycles has standardised on a steel or aluminium frame , telescopic forks holding the front wheel, and disc brakes . Some other body parts, designed for either aesthetic or performance reasons may be added. A petrol-powered engine typically consisting of between one and four cylinders (and less commonly, up to eight cylinders) coupled to

1632-668: The Australian Capital Territory , Tasmania and the Northern Territory , it is compulsory to complete a basic rider training course before being issued a Learners Licence, after which they can ride on public roads. In Canada, motorcycle rider training is compulsory in Quebec and Manitoba only, but all provinces and territories have graduated licence programs which place restrictions on new drivers until they have gained experience. Eligibility for

1700-496: The Craig Vetter Fuel Economy Challenge "on real highways – in real conditions". Due to low engine displacements (100–200 cc (6.1–12.2 cu in)), and high power-to-mass ratios, motorcycles offer good fuel economy. Under conditions of fuel scarcity like 1950s Britain and modern developing nations, motorcycles claim large shares of the vehicle market. In the United States,

1768-463: The DKW RT 125 and the later Hoffmann Vespa . The transmission had three speeds with no neutral position; a mechanism held the clutch open when the motorcycle was at idle in first gear. First gear was positioned in the middle of the shift pattern, with second gear below and third gear above. The engine and transmission were mounted together on the swingarm in front of the pivot axle at the bottom of

1836-716: The FIM in the light of the safety concerns. From the 1960s through the 1990s, small two-stroke motorcycles were popular worldwide, partly as a result of East German MZs Walter Kaaden's engine work in the 1950s. In the 21st century, the motorcycle industry is mainly dominated by Indian and Japanese motorcycle companies. In addition to the large capacity motorcycles, there is a large market in smaller capacity (less than 300 cc) motorcycles, mostly concentrated in Asian and African countries and produced in China and India. A Japanese example

1904-492: The Fatality Analysis Reporting System show that for passenger cars, 18.62 fatal crashes occur per 100,000 registered vehicles. For motorcycles this figure is higher at 75.19 per 100,000 registered vehicles – four times higher than for cars. The same data shows that 1.56 fatalities occur per 100 million vehicle miles travelled for passenger cars, whereas for motorcycles the figure

1972-600: The Second World War , Fend, who had been a technical officer with the Luftwaffe , opened a workshop in Rosenheim , Germany . In 1948, he devised an invalid carriage in the form of a tricycle . The front wheel of the tricycle was powered by pushing the handlebars back and forth. Originally designed with bicycle wheels, it was redesigned with scooter wheels in order to make the carriage lower. Fend later made

2040-496: The 1920s stood out. Initially, using converted a Woodmann-designed OHV Blackburne engine it became the first 350 cc to exceed 100 mph (160 km/h), recording 100.81 mph (162.24 km/h) over the flying kilometre during April 1924.[7] Later, Chater-Lea set a world record for the flying kilometre for 350 cc and 500 cc motorcycles at 102.9 mph (165.6 km/h) for the firm. Chater-Lea produced variants of these world-beating sports models and became popular among racers at

2108-526: The Fend 150 led to the production of the Messerschmitt KR175, which began in February 1953. Development continued after production began, resulting in 70 modifications of the design by June 1953. However, the KR175's excellent road manners and relative lack of width made it a good city commuter. In 1955, Messerschmitt replaced the KR175 with the KR200. Apart from a larger engine, the KR175

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2176-473: The First World War, motorbike production was greatly ramped up for the war effort to supply effective communications with front line troops. Messengers on horses were replaced with despatch riders on motorcycles carrying messages, performing reconnaissance and acting as a military police. American company Harley-Davidson was devoting over 50% of its factory output toward military contract by the end of

2244-485: The Imme's "bee on wheels" logo came from "Imme" being a dialect word meaning "bee". However, it has also been suggested that the name came from the motorcycle itself resembling a bee, or from the engine sounding like a buzzing bee. The Imme R100's light weight, relatively powerful engine, and long travel suspension made it popular in motorsport; this, along with good marketing and low pricing, led to strong sales. The management of Riedel AG expected high sales volume to offset

2312-525: The Isle of Man TT. Today, the firm is probably best remembered for its long-term contract to manufacture and supply AA Patrol motorcycles and sidecars. By the late 1920s or early 1930s, DKW in Germany took over as the largest manufacturer. In the 1950s, streamlining began to play an increasing part in the development of racing motorcycles and the "dustbin fairing" held out the possibility of radical changes to motorcycle design. NSU and Moto Guzzi were in

2380-616: The KR200 and his other vehicles. FMR was allowed to continue using the Messerschmitt name and logo on the KR200. The Fend Lastenroller was developed into the FMR Mokuli, versions of which were manufactured by FMR until 1972, after which the production line was shipped of to Morocco . The Mokuli was originally capable of carrying 130 kg (287 lb) later versions thereof had stronger and smaller front wheels and either 200 or 250 kg (441 or 551 lb) capacities. The name

2448-596: The United States by organisations ranging from state agencies to non-profit organisations to corporations. Most states use the courses designed by the Motorcycle Safety Foundation (MSF), while Oregon and Idaho developed their own. All of the training programs include a Basic Rider Course, an Intermediate Rider Course and an Advanced Rider Course. In Ireland , since 2010, in the UK and some Australian jurisdictions, such as Victoria , New South Wales ,

2516-417: The art at the time. Starting was by compressed air. The engine was liquid-cooled, with a radiator over the rear driving wheel. Speed was controlled by means of a throttle valve lever. No braking system was fitted; the vehicle was stopped by raising and lowering the rear driving wheel using a foot-operated lever; the weight of the machine was then borne by two small castor wheels. The driver was seated between

2584-403: The average motorcycle fuel economy is 44 miles per US gallon (19 km per liter). Very high fuel economy equivalents are often derived by electric motorcycles. Electric motorcycles are nearly silent, zero-emission electric motor-driven vehicles. Operating range and top speed are limited by battery technology. Fuel cells and petroleum-electric hybrids are also under development to extend

2652-577: The awareness of motorcycles on the country's roads. The campaign, while strongest in the Gauteng province, has representation in Western Cape, KwaZulu Natal and the Free State. It has dozens of trained marshals available for various events such as cycle races and is deeply involved in numerous other projects such as the annual Motorcycle Toy Run. Motorcycle safety education is offered throughout

2720-514: The direction opposite of the desired turn. This practice is counterintuitive and therefore often confusing to novices – and even many experienced motorcyclists. With such short wheelbase , motorcycles can generate enough torque at the rear wheel, and enough stopping force at the front wheel, to lift the opposite wheel off the road. These actions, if performed on purpose, are known as wheelies and stoppies (or endos) respectively. Various features and accessories may be attached to

2788-428: The displacement. The Tg500 was aimed primarily at sporting enthusiasts and was built from 1958 to 1961. About 320 were made. Fritz Fend left FMR after they stopped building the KR200. Fend continued his career as a technical designer and an inventor. He invented an alarm that went on if the key was removed from a car ignition while the lights were still on, a feature that became popular after his patent ran out. In

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2856-474: The first "modern motorcycle". Introduced in 1915 it had a 550 cc side-valve four-stroke engine with a three-speed gearbox and belt transmission. It was so popular with its users that it was nicknamed the "Trusty Triumph". By 1920, Harley-Davidson was the largest manufacturer, with their motorcycles being sold by dealers in 67 countries. Amongst many British motorcycle manufacturers, Chater-Lea with its twin-cylinder models followed by its large singles in

2924-429: The five brands with enough data to draw conclusions, Honda, Kawasaki and Yamaha were statistically tied, with 11 to 14% of those bikes in the survey experiencing major repairs. Harley-Davidsons had a rate of 24%, while BMWs did worse, with 30% of those needing major repairs. There were not enough Triumph and Suzuki motorcycles surveyed for a statistically sound conclusion, though it appeared Suzukis were as reliable as

2992-523: The front wheels. It was not, however, a success, as Butler failed to find sufficient financial backing. Many authorities have excluded steam powered , electric motorcycles or diesel-powered two-wheelers from the definition of a 'motorcycle', and credit the Daimler Reitwagen as the world's first motorcycle. Given the rapid rise in use of electric motorcycles worldwide, defining only internal-combustion powered two-wheelers as 'motorcycles'

3060-418: The geometry of the motorcycle itself. These factors create a set of three basic postures. Factors of a motorcycle's ergonomic geometry that determine the seating posture include the height, angle and location of footpegs, seat and handlebars. Factors in a rider's physical geometry that contribute to seating posture include torso, arm, thigh and leg length, and overall rider height. Fritz Fend After

3128-602: The introduction of the "Kabrio" convertible and the KR201 Roadster. Production of the KR200 was heavily reduced in 1962 and ceased in 1964 In 1956, Messerschmitt was allowed to manufacture aircraft again and lost interest in Fend's microcars. Messerschmitt sold the Regenburg works to Fend, who, with brake and hub supplier Valentin Knott, formed Fahrzeug- und Maschinenbau GmbH, Regensburg (FMR) to continue production of

3196-437: The low profit margin. A basic Imme sold for 775 Deutschmark without battery, tachometer , or centre stand . Passenger accommodation was an optional extra, as was a spare wheel . Initially, Immes were all painted oxide red. In 1950, a better-equipped "Export" version became available for 850 Deutschmark with a battery, an electric horn, a centre stand, a speedometer, a more comfortable seat, chrome plating, pinstriping, and

3264-560: The new internal combustion engine. As the engines became more powerful and designs outgrew the bicycle origins, the number of motorcycle producers increased. Many of the nineteenth-century inventors who worked on early motorcycles often moved on to other inventions. Daimler and Roper, for example, both went on to develop automobiles. At the end of the 19th century the first major mass-production firms were set up. In 1898, Triumph Motorcycles in England began producing motorbikes, and by 1903 it

3332-461: The option of a spare tyre, the complete drivetrain mounted on the swingarm , and the swingarm tube used as the exhaust pipe . Remarking on the R100 being displayed in the Solomon R. Guggenheim Museum exhibition " The Art of the Motorcycle ", Ultan Guilfoyle, curatorial adviser at the museum, said: "It's my favourite unknown bike. There are ideas there that are 40 years ahead of their time." An R100

3400-408: The other three Japanese brands while Triumphs were comparable to Harley-Davidson and BMW. Three-fourths of the repairs in the survey cost less than US$ 200 and two-thirds of the motorcycles were repaired in less than two days. In spite of their relatively worse reliability in this survey, Harley-Davidson and BMW owners showed the greatest owner satisfaction, and three-fourths of them said they would buy

3468-588: The range and improve performance of the electric drive system. A 2013 survey of 4,424 readers of the US Consumer Reports magazine collected reliability data on 4,680 motorcycles purchased new from 2009 to 2012. The most common problem areas were accessories , brakes , electrical (including starters , charging , ignition ), and fuel systems , and the types of motorcycles with the greatest problems were touring, off-road/dual sport, sport-touring, and cruisers. There were not enough sport bikes in

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3536-400: The same bike again, followed by 72% of Honda owners and 60 to 63% of Kawasaki and Yamaha owners. Two-wheeled motorcycles stay upright while rolling due to a physical property known as conservation of angular momentum in the wheels. Angular momentum points along the axle, and it "wants" to stay pointing in that direction. Different types of motorcycles have different dynamics and these play

3604-473: The same time as the American Roper steam velocipede , built by Sylvester H. Roper of Roxbury, Massachusetts , who had been demonstrating his machine at fairs and circuses in the eastern U.S. since 1867. Roper built about 10 steam cars and cycles from the 1860s until his death in 1896. In 1894, Hildebrand & Wolfmüller became the first series production motorcycle, and the first to be called

3672-502: The single-sided crankshaft bearings and the freewheel for the kick starter . Riedel corrected the problem beginning with the Model D version, which had a conventional crankshaft with two bearings. However, the profit from sales was not enough to cover the warranty expenses, and, by the end of 1950, Riedel AG went bankrupt with debts of 1.25 million Deutschmark. At the time of Riedel AGs bankruptcy, three prototypes of an Imme with

3740-416: The spine frame. The near-horizontal engine and transmission together as a unit formed a "power egg" style which would later be used by Benelli and Motobi . The tubular swingarm also served as the exhaust pipe. Behind the pivot axle, the swingarm, the reinforced rear fender , and the supports for the rear carrier formed a triangular structure which supported the rear spring. This suspension system allowed

3808-640: The street as well. Each configuration offers either specialised advantage or broad capability, and each design creates a different riding posture. In some countries the use of pillions (rear seats) is restricted. The first internal combustion , petroleum fueled motorcycle was the Daimler Reitwagen . It was designed and built by the German inventors Gottlieb Daimler and Wilhelm Maybach in Bad Cannstatt , Germany, in 1885. This vehicle

3876-471: The survey for a statistically significant conclusion, though the data hinted at reliability as good as cruisers. These results may be partially explained by accessories including such equipment as fairings, luggage, and auxiliary lighting, which are frequently added to touring, adventure touring/dual sport and sport touring bikes. Trouble with fuel systems is often the result of improper winter storage, and brake problems may also be due to poor maintenance. Of

3944-462: The vanguard of this development, both producing very radical designs well ahead of their time. NSU produced the most advanced design, but after the deaths of four NSU riders in the 1954–1956 seasons, they abandoned further development and quit Grand Prix motorcycle racing . Moto Guzzi produced competitive race machines, and until the end of 1957 had a succession of victories. The following year, 1958, full enclosure fairings were banned from racing by

4012-401: The war. The British company Triumph Motorcycles sold more than 30,000 of its Triumph Type H model to allied forces during the war. With the rear wheel driven by a belt, the Model H was fitted with a 499 cc (30.5 cu in) air-cooled four-stroke single-cylinder engine. It was also the first Triumph without pedals . The Model H in particular, is regarded by many as having been

4080-481: Was a three-wheeled vehicle, with the rear wheel directly driven by a 5 ⁄ 8  hp (0.47 kW), 40 cc (2.4 cu in) displacement, 2 + 1 ⁄ 4  in × 5 in (57 mm × 127 mm) bore × stroke, flat twin four-stroke engine (with magneto ignition replaced by coil and battery) equipped with rotary valves and a float-fed carburettor (five years before Maybach ) and Ackermann steering , all of which were state of

4148-478: Was almost completely re-engineered to produce the Kr200,new suspension(introducing shock absorbers to the design), new floor construction,improved engine mounting, larger tires, improved controls, and a means by which to reverse the car. Reverse was accomplished not by including a reverse gear in the transmission but by reversing the rotation of the engine itself. KR200 production expanded to three models in 1957 with

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4216-454: Was cast in light alloy around the cylinder liner, and had an integral cylinder head . The crankshaft was suspended on only one side. The power output of the engine was 4.5 PS (3.3 kW; 4.4 hp) at 5,800 rpm, which was considered a high output at the time. Contemporary engines of comparable size typically made about 2.5 PS (1.8 kW; 2.5 hp), and 4.5 PS was expected from 125 cc engines such as those used in

4284-844: Was designed as an expedient testbed for their new engine, rather than a true prototype vehicle. The first commercial design for a self-propelled cycle was a three-wheel design called the Butler Petrol Cycle, conceived of Edward Butler in England in 1884. He exhibited his plans for the vehicle at the Stanley Cycle Show in London in 1884. The vehicle was built by the Merryweather Fire Engine company in Greenwich , in 1888. The Butler Petrol Cycle

4352-418: Was made from 40 mm steel tubing, as were the steering head, the single-sided front fork , and the single-sided swingarm . The wheels were interchangeable, and were mounted from the left on stub axles attached to the suspension on the right. Riedel developed the engine at the same time. This was a piston-ported two-stroke single-cylinder engine of 99 cc (6.0 cu in) capacity. The engine

4420-581: Was one of the motorcycles included in " The Art of the Motorcycle " exhibition at the Solomon R. Guggenheim Museum in 1998 and is on permanent display at Barber Vintage Motorsports Museum . Motorcycle engineer Norbert Riedel recognized the need for a simple and economical light motorcycle during Germany's recovery from the Second World War and began to design one. By the summer of 1947, a prototype frame had been built and tested. The spine frame

4488-477: Was powered. About 250 Flitzers were built between 1948 and the end of production in 1951. In addition to the invalid carriages, Fend designed and built the Fend Lastenroller, a three-wheeled forecar moped with a cargo platform or trunk between the front wheels. Many Flitzer buyers were not invalids but healthy people seeking basic personal transportation. This led Fend to design the Fend 150,

4556-447: Was producing over 500 bikes. Other British firms were Royal Enfield , Norton , Douglas Motorcycles and Birmingham Small Arms Company who began motorbike production in 1899, 1902, 1907 and 1910, respectively. Indian began production in 1901 and Harley-Davidson was established two years later. By the outbreak of World War I, the largest motorcycle manufacturer in the world was Indian, producing over 20,000 bikes per year. During

4624-469: Was unlike either the safety bicycles or the boneshaker bicycles of the era in that it had zero degrees of steering axis angle and no fork offset , and thus did not use the principles of bicycle and motorcycle dynamics developed nearly 70 years earlier. Instead, it relied on two outrigger wheels to remain upright while turning. The inventors called their invention the Reitwagen ("riding car"). It

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