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A sidecar is a one-wheeled device attached to the side of a motorcycle, scooter, or bicycle, [1] making the whole a three-wheeled vehicle. A motorcycle with a sidecar is sometimes called a combination, an outfit, a rig or a hack.[ citation needed ]
Jean Bertoux, a French army officer, secured a prize offered by a French newspaper in 1893 for the best method of carrying a passenger on a bicycle. The sidecar wheel was mounted on the same lateral plane as the bicycle's rear and was supported by a triangulation of tubes from the bicycle. A sprung seat with back rest was mounted above the cross-member and a footboard hung below. [2] A sidecar appeared in a cartoon by George Moore in the January 7, 1903, issue of the British newspaper Motor Cycling . Three weeks later, a provisional patent was granted to Mr. W. J. Graham of Graham Brothers, Enfield, Middlesex. He partnered with Jonathan A. Kahn to begin production.[ citation needed ]
One of Britain's oldest sidecar manufacturers, Watsonian, was founded in 1912. It is still trading as Watsonian Squire. Automobile producer Jaguar Cars was founded in 1922 as a sidecar manufacturer, the Swallow Sidecar Company.
In 1913, American inventor Hugo Young, of Loudonville, Ohio, designed a new sidecar which was not rigidly fixed to the motorcycle. Instead, his invention employed a flexible connection, which allowed the sidecar to turn, raise, and lower without affecting the balance of the motorcycle. This was a great improvement over the original design, allowing for much safer and more comfortable experiences for both the passenger and driver. Young opened up the Flxible Sidecar Company (the first "e" was dropped to allow for trademarking the name) in Loudonville, Ohio and soon became the largest sidecar manufacturer in the world (the company closed in 1996). When the motorcycle craze began to fade in the 1920s due to more affordable cars being marketed, as well as the banishment of sidecar racing in the United States, the Flxible Sidecar Company began producing transit buses, ambulances, and hearses.
Until the 1950s sidecars were quite popular, providing a cheap alternative to passenger cars; they have also been used by armed forces, police and the UK's AA and RAC motoring organisations.
A sidecar motorcycle is a three-wheeled vehicle with the side wheel not directly aligned with the rear motorcycle wheel, and is usually powered by the rear wheel only. This is different from a motor tricycle (trike), where both rear wheels are powered and share a common axle. However, either P.V. Mokharov of the Soviet Union or H.P. Baughn of Great Britain seem to have been the first to employ a driven sidecar wheel in 1929. Baughn two-wheel-drive outfits were so successful in trials events in the early 1930s that there were attempts to have the ACU ban them from competition. A great many companies experimented with two-wheel drive in sporting events and indeed many companies employed them in military vehicles prior to the commencement of World War II. Currently, the Russian manufacturer Ural produces several models with two-wheel drive that can be engaged as desired. [3]
The sidecar consists of a frame and of a body. The frame may either be fixed to the bike, or it may be attached in a way which makes the bike able to lean in the same manner as bikes without sidecars. [4] Also, Ural had a reversible sidecar for the European market.
The body typically provides one passenger seat and a small trunk compartment behind. In some cases the sidecar has a removable soft top. In some modifications, the sidecar's body is used for carrying cargo or tools, like a truck's platform. The sidecar is typically mounted so that the motorcycle is closer to the centre of the road, i.e. with the sidecar on the right for right-hand traffic.
A sidecar makes the bike asymmetrical. A fixed mounted rig with right mounted sidecar can go faster in left turns than in right turns because the sidecar prevents it from tipping over. [5] In right turns, they can tip over if curves are taken too fast. [6] Some techniques can be used to take a right curve faster without tipping, like usage of the brake on the sidecar, if one is fitted. [7]
While a sidecar pilot is described as driving rather than riding, the comparison to a car is weak with all but the heaviest rigs. Driver and passenger body position affect higher speed handling, especially on dirt or other uneven surfaces. If the sidecar and bike geometry are not coordinated the combination will be unstable, especially at speed, with shimmy upon acceleration or deceleration.
In rigid mounted rigs, leaning the motorcycle by clamping it rigidly a few degrees away from the sidecar is used along with a few degrees of "toe-in" of the sidecar wheel toward the centerline of the vehicle to allow for road camber and provide a balance resulting in comfortable, straight line travel. Most sidecars are also fitted with steering damping devices of either friction or hydraulic type to lessen the effects of sudden inputs, as encountered on rough roads, upon the vehicle's handling. [8]
Sidecar racing events exist in motocross (see sidecarcross), enduro, grasstrack, trial, road racing and speedway with sidecar classes. The sport has followers in Europe, the United States, Japan, Australia and New Zealand. The sidecars are often classed by age or engine size, with historic sidecar racing often being more popular than its modern counterpart. Older classes in road racing generally resemble solo motorcycles with a platform attached, where modern racing sidecars are low and long and borrow much technology from open wheel race cars. In all types of sidecar racing there is a rider and a passenger who work in unison to make the machine perform, as they would be almost unrideable without the passenger in the correct position.
Road racing sidecars began to change away from normal motorcycle development in the 1950s with them becoming lower and using smaller diameter wheels and they kept the enclosed "dustbin fairing" banned in solo competition in 1957. By the 1970s, they were using wide slick tyres with a square car-like profile, the rider kneeled behind the engine instead of sitting on a seat and the motor of choice was generally a 500 cc two stroke. In the late 1970s sidecars began to appear with hub centre steering and later the engines moved to the rear of the rider, to lower the centre of gravity further still, making the sidecar very long. Sidecars raced in the Sidecar World Championship are all hub centre long monocoque framed machines, the most common being LCR, ART or Windle, with 1,000 cc four-cylinder four-stroke engines, the most popular being the Suzuki GSX-R1000.
These at club and national level are known as Formula One sidecars, as opposed to Formula Two. Formula Two sidecars are short front engined bikes, which must have a frame made of steel tube and have leading link forks as monocoques and hub centre steering is banned. Engines are 350 cc two strokes or 600 cc four strokes. F2 sidecars are raced in their own championship but are often on track at the same time as the F1s, but competing for their own points. Since 1990 at the Isle of Man TT, the Sidecar TT has been solely contested by Formula Two sidecars as Formula Ones were deemed too fast, then lapping at 108 mph (174 km/h) average. By 2006 however, F2s were faster than this lapping at 116 mph (187 km/h).
During World War I, the British Army sought to increase the mobility of its Vickers machine guns. A gun and its tripod weighed between 65 and 80 pounds (29 and 36 kg); cooling water was also required and ammunition boxes weighted a further 22 pounds (10.0 kg) each; each gun required a six to eight man team to carry it.
A solution to this problem was to fit the guns to sidecar motorcycles. This would allow the guns to be moved rapidly between different sectors, and allow them to quickly pursue retreating enemy troops. Clyno motorcycles were initially adopted; these could carry the gun, tripod, water and spare parts, as well as seven ammunition boxes; they were supported by unarmed sidecar motorcycles that carried only ammunition. A number of different motorcycles were eventually used. A special unit, the Motor Machine Gun Service, was formed to operate them, but the static nature of trench warfare meant the unit was infrequently used. [9]
During World War II, German troops used many BMW and Zündapp sidecar motorcycles. On German, Italian, French, Belgian, British and Soviet military sidecars, the side wheel was sometimes also driven, sometimes using a differential gear, to improve the vehicle's all-terrain ability.
The sidecar is normally fitted to the right of the motorcycle in jurisdictions where traffic keeps to the right side of the road; the sidecar's position is reversed in left-side jurisdictions. This matches the usual configuration of driver and front-seat passenger in cars. In the UK, sidecars fitted to the right side are prohibited on motorcycles registered after August 1981. [10] In Italy, left-mounted sidecars were prohibited in 1924, though the ban was not enforced until 1959. [11]
In the Republic of China (Taiwan), Article 39-2 of the Road Traffic Security Rules prohibits the registration of new motorcycles with sidecars but does not specifically restrict fitting them later. [12]
Several flexible sidecars, not rigidly attached to the motorcycle, have been developed. This can help deal with issues of uneven pavement and allow leaning the bike into turns. [13] [14]
Sidecars have sometimes been fitted on bicycles. The "Watsonian" brand was popular from the 1930s to the 1950s in the UK. The Philippine trisikad is a type in current use.
Although sidecars have become much less common since the mid-1950s, a number of manufacturers worldwide have continued to produce sidecars for many popular motorcycles and scooters.
| Manufacturer | Country |
|---|---|
| Inder Exports [15] | India |
| Inder Auto industries [16] | India |
| Cozy[ citation needed ] | India |
| Divjot exports[ citation needed ] | India |
| EML Sidecars | Netherlands |
| Hongdu, Shineray and Zhuzhou | China |
| Watsonian Squire | UK (England) |
| IMZ-Ural and VMZ for IZh | Russia |
| Premier [17] [ better source needed ] | Australia |
| Louis Christen Racing | Switzerland |
| Wasp Motorcycles | UK (England) |
| QD-Mobiles Oy | Finland |
| Motorvation Sidecars and Trailers [18] | USA (Sibley, IA) |
A motorcycle is a two or three-wheeled motor vehicle steered by a handlebar from a saddle-style seat.
A swingarm, or "swinging arm" (UK), originally known as a swing fork or pivoted fork, is a single or double sided mechanical device which attaches the rear wheel of a motorcycle to its body, allowing it to pivot vertically. The main component of the rear suspension of most modern motorbikes and ATVs, it holds the rear axle firmly, while pivoting to absorb bumps and suspension loads induced by the rider, acceleration, and braking.
Countersteering is used by single-track vehicle operators, such as cyclists and motorcyclists, to initiate a turn toward a given direction by momentarily steering counter to the desired direction. To negotiate a turn successfully, the combined center of mass of the rider and the single-track vehicle must first be leaned in the direction of the turn, and steering briefly in the opposite direction causes that lean. The rider's action of countersteering is sometimes referred to as "giving a steering command".
A motorcycle engine is an engine that powers a motorcycle. Motorcycle engines are typically two-stroke or four-stroke internal combustion engines, but other engine types, such as Wankels and electric motors, have been used.
A motorized bicycle is a bicycle with an attached 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 propulsion, the motorized bicycle is in technical terms a true bicycle, albeit a power-assisted one. Typically they are incapable of speeds above 52 km/h (32 mph), however in recent years larger motors have been built, allowing bikes to reach speeds of upwards of 72 km/h.
Sidecarcross racing, also known as sidecar motocross, is a branch of motocross. Regular motocross riders use solo machines, but a sidecarcross outfit has a different type of motorcycle chassis operated by a team of two people, a driver and a sidecar passenger. The earliest articles appear to show that sidecarcross started in the UK in the 1930s.
FIM Sidecar World Championship is the international sidecar racing championship. It is the only remaining original FIM road racing championship class that started in 1949.
Fender is the American English term for the part of an automobile, motorcycle or other vehicle body that frames a wheel well. Its primary purpose is to prevent sand, mud, rocks, liquids, and other road spray from being thrown into the air by the rotating tire. Fenders are typically rigid and can be damaged by contact with the road surface.
A motorcycle's suspension serves a dual purpose: contributing to the vehicle's handling and braking, and providing safety and comfort by keeping the vehicle's passengers comfortably isolated from road noise, bumps and vibrations.
Douglas was a British motorcycle manufacturer from 1907 to 1957 based in Kingswood, Bristol, owned by the Douglas family, and especially known for its horizontally opposed twin cylinder engined bikes and as manufacturers of speedway machines. The company also built a range of cars between 1913 and 1922.
A motorcycle fork connects a motorcycle's front wheel and axle to its frame, typically via a yoke, also known as a triple clamp, which consists of an upper yoke joined to a lower yoke via a steering stem, a shaft that runs through the steering head, creating the steering axis. Most forks incorporate the front suspension and front brake, and allow the front wheel to rotate about the steering axis so that the bike may be steered. Most handlebars attach to the top clamp in various ways, while clip-on handlebars clamp to the fork tubes, either just above or just below the upper triple clamp.
The history of the motorcycle begins in the second half of the 19th century. Motorcycles are descended from the "safety bicycle," a bicycle with front and rear wheels of the same size and a pedal crank mechanism to drive the rear wheel. Despite some early landmarks in its development, the motorcycle lacks a rigid pedigree that can be traced back to a single idea or machine. Instead, the idea seems to have occurred to numerous engineers and inventors around Europe at around the same time.
Originally designed in 1966 by Leonard R Jordan Jr, the steering damper or steering stabiliser is a damping device designed to inhibit an undesirable, uncontrolled movement or oscillation of a vehicle steering mechanism, a phenomenon known in motorcycling as the death wobble. The stabilizer absorbs unwanted energy in the side to side motion allowing the forks and shocks to work properly. Many things can cause a motorcycle chassis to get upset such as slamming on brakes, rough road, and lastly improper setup. An upset chassis can be a great deal of danger for the rider often times resulting in a crash. A steering stabilizer slows those movements down resulting in the rider feeling more comfortable on the motorcycle.
Dunelt Motorcycles was a British motorcycle and bicycle manufacturer. Based in Sheffield, the business was founded by two steel makers and engineers, Dunford and Elliott of Sheffield in 1919. Their first motorcycle was an innovative supercharged 499 cc two-stroke single. The company specialised in good quality sidecars from 1926 and a Dunelt motorcycle was first to cross the desert from Cairo to Siwa and back in 1924. Dunelt also enjoyed racing success and won the Double Twelve Hour World Record at Brooklands with a Model K in 1928. Dunelt moved into commercial three-wheeled cars but these were not a success. A Dunelt moped was exhibited at the Earls Court show in 1956 but the company diversified into other areas of engineering in 1957.
Motorcycle accessories are features and accessories selected by a motorcycle owner to enhance safety, performance, or comfort, and may include anything from mobile electronics to sidecars and trailers. An accessory may be added at the factory by the original equipment manufacturer or purchased and installed by the owner post-sale as aftermarket goods. The term Farkle is used within the motorcycle community, originally to denote useful add-ons, such as GPS or other upgraded components. Now also used at times in a humorous or mildly derogatory way to describe bling, such as anodized or chromed parts that add no functionality.
The following outline is provided as an overview of motorcycles and motorcycling:
Wasp Motorcycles is a motorcycle and sidecar manufacturer based in Dinton, near Salisbury, England, that specialises in building competition solo and sidecar machines for motocross, trials and sidecar grasstrack, as well as the Wasp 3 Wheel Freedom for disabled riders.
Motorcyclewheels are made to cope with radial and axial forces. They also provide a way of mounting other critical components such as the brakes, final drive and suspension. Wheels, and anything directly connected to them, are considered to be unsprung mass. Traditionally motorcycles used wire-spoked wheels with inner tubes and pneumatic tyres. Although cast wheels were first used on a motorcycle in 1927, it would not be until the 1970s that mainstream manufacturers would start to introduce cast wheels on their roadgoing motorcycles. Spoked wheels are usually made using steel spokes with steel or aluminium rims. Cast wheels are predominantly made from an aluminium-alloy, but can also be made from more-exotic materials, such as magnesium content alloy or carbon fibre.
Motorcycle braking systems have varied throughout time, as motorcycles evolved from bicycles with an engine attached, to the 220 mph (350 km/h) prototype motorcycles seen racing in MotoGP. Most systems work by converting kinetic energy into thermal energy (heat) by friction. On motorcycles, approximately 70% of the braking effort is performed by the front brake. This however can vary for individual motorcycles; longer-wheelbase types having more weight biased rearward, such as cruisers and tourers, can have a`greater effort applied by the rear brake. In contrast, sports bikes with a shorter wheelbase and more vertical fork geometry can tolerate higher front braking loads. For these reasons, motorcycles tend to have a vastly more powerful front brake compared to the rear.
The motorcycle and sidecar were upright in the straights but in the turns, all 3 wheels tilted.
The combination allowed the sidecar to lean with the motorcycle, something that no other sidecar could do.
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