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James Comet
The James Comet was a 98 cubic centimeter (cc), two-stroke, motorcycle manufactured by the James Cycle Co. and announced on 21 October 1948. A post-World War II design, the Comet went into production in late 1948. Comet J1 / J3 / J10 rigid frame *Engine: Villiers Engineering 1F engine at 98cc 47mm x 57mm engine. Late 1952 & 1953. the J3 Comet Deluxe models were fitted with the Villiers 4F engine. Carburetor was a Villiers Type 6/0. *Transmission: Two speed with clutch. Handlebar gear lever has 'trigger'. *Frame: Single downtube frame. *Suspension: Front was taper tube for girder type with single, central undamped spring. Rear: None *Brakes: 4" front and rear *Drive: Chain and sprocket Comet J11 The Comet J11 was manufactured from 1954–1955. *Engine: Villiers Mk 4F (98cc) (47mm x 57mm), Carburetor was a Villiers Type 6/0 *Transmission: Two speed with clutch. *Frame: Single down tube *Suspension: Front was lightweight telescopic fork, plastic gaiters. Rear was a plunger-type. * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Two-stroke
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 (up and down movements) of the piston during one power cycle, this power cycle being completed in one revolution of the crankshaft. A four-stroke engine requires four strokes of the piston to complete a power cycle during two crankshaft revolutions. In a two-stroke engine, the end of the combustion stroke and the beginning of the compression stroke happen simultaneously, with the intake and exhaust (or Scavenging (automotive), scavenging) functions occurring at the same time. Two-stroke engines often have a high power-to-weight ratio, power being available in a narrow range of rotational speeds called the power band. Two-stroke engines have fewer moving parts than four-stroke engines. History The first commercial two-stroke engine involving cylinder compression is attributed to Scotland, Scottish engineer Dugald Clerk, who pa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Motorcycle
A motorcycle (motorbike, bike, or trike (if three-wheeled)) is a two or three-wheeled motor vehicle steered by a handlebar. Motorcycle design varies greatly to suit a range of different purposes: long-distance travel, commuting, cruising, sport (including racing), and off-road riding. Motorcycling is riding a motorcycle and being involved in other related social activity 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 comparably popular to cars as a method of transport. In 2021, approximately 58.6 million new motorcycles were sold around the world, fewer than the 66.7 million cars sold over the same period. In 2014, the three top motorcycle producers globally by volume were Honda (28%), Yamaha (17 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
James Cycle Co
The James Cycle Co Ltd., Greet, Birmingham, England, was one of many British cycle and motorcycle makers based in the English Midlands, particularly Birmingham. Most of their light motorcycles, often with the characteristic maroon finish, used Villiers and, later, AMC two-stroke engines. James were prolific bicycle and motorcycle manufacturers from 1897 to 1966. The company was taken over by Associated Motor Cycles in 1951 and combined with Francis-Barnett in 1957. In 1966 the company became one of the many British motorcycle companies forced out of business by Japanese competition. Models James produced the 98 cc Autocycle, 125 cc Comet, Commodore, also 1954/55 Colonel 225cc Villiers single cylinder, several Captains as well as trials and scrambles bikes. In 1956 they produced the Captain 200 K7, Cotswold 200 K7C, and Commando 200 K7T, all 197 cc. See also List of James motorcycles This is a list of motorcycles produced by the James Cycle Co. 98cc * A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World War II
World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposing military alliances: the Allies and the Axis powers. World War II was a total war that directly involved more than 100 million personnel from more than 30 countries. The major participants in the war threw their entire economic, industrial, and scientific capabilities behind the war effort, blurring the distinction between civilian and military resources. Aircraft played a major role in the conflict, enabling the strategic bombing of population centres and deploying the only two nuclear weapons ever used in war. World War II was by far the deadliest conflict in human history; it resulted in 70 to 85 million fatalities, mostly among civilians. Tens of millions died due to genocides (including the Holocaust), starvation, ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Villiers Engineering
Villiers Engineering was a manufacturer of motorcycles and cycle parts, and an engineering company based in Villiers Street, Wolverhampton, England. Early history In the 1890s John Marston's Sunbeam had become extremely successful by relying on high quality of production and finish. But Marston was dissatisfied with the pedals on his machines, which he bought in. In 1890 he dispatched his son Charles to the US on a selling trip, but included in his instructions that Charles must discuss pedal engineering with Pratt and Whitney in Hartford, Connecticut and come back with a high-class pedal and the machinery for making it. Charles said that the Villiers Engineering Co. was "the ultimate fruit" of his trip to the US, being impressed by the production system and the labour saving devices. He pointed out that "it was not possible to develop these at Sunbeamland, which had long been working on another plan, but it was possible to start them in a new factory". As a result of the to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carburetor
A carburetor (also spelled carburettor) is a device used by an internal combustion engine to control and mix air and fuel entering the engine. The primary method of adding fuel to the intake air is through the venturi tube in the main metering circuit, however various other components are also used to provide extra fuel or air in specific circumstances. Since the 1990s, carburetors have been largely replaced by fuel injection for cars and trucks, however carburetors are still used by some small engines (e.g. lawnmowers, generators and concrete mixers) and motorcycles. Diesel engines have always used fuel injection instead of carburetors. Etymology The name "carburetor" is derived from the verb ''carburet'', which means "to combine with carbon," or in particular, "to enrich a gas by combining it with carbon or hydrocarbons." Thus a carburetor mixes intake air with hydrocarbon-based fuel, such as petrol or autogas (LPG). The name is spelled "carburetor" in American English ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Motorcycle Frame
A motorcycle frame is a motorcycle's core structure. It supports the engine, provides a location for the steering and rear suspension, and supports the rider and any passenger or luggage. Also attached to the frame are the fuel tank and battery. At the front of the frame is found the steering head tube that holds the pivoting front fork, while at the rear there is a pivot point for the swingarm suspension motion. Some motorcycles include the engine as a load-bearing stressed member; while some other bikes do not use a single frame, but instead have a front and a rear subframe attached to the engine. Materials In the early days, motorcycles were little more than motorised bicycles, and consequently frames were tubular steel. While the use of steel tubing is still common, in modern times other materials, such as titanium, aluminium, magnesium, and carbon-fibre, along with composites of these materials, are now used. As different motorcycles have varying design parameters (such as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Motorcycle Fork
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 fork and its attachment points on the frame establish the critical geometric parameters of rake and trail, which play a major role in defining how a motorcycle handles and dives during braking. While the standard telescopic fork arrangement is found with few major differences among mainstream street motorcycles since the 1970s, historically there have been many variations, including trailin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Swingarm
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. Originally motorcycles had no rear suspension, as their frames were little more than stronger versions of the classic diamond frame of a bicycle. Many types of suspension were tried, including Indian's leaf spring suspended swingarm, and Matchless's cantilevered coiled-spring swingarm. Immediately before and after World War II, the plunger suspension, in which the axle moved up and down two vertical posts, became commonplace. In the latter, the movement in each direction was against coiled springs. Some manufacturers, such as Greeves, used swingarm d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of James Motorcycles
This is a list of motorcycles produced by the James Cycle Co. 98cc * Autocycle (Deluxe and Superluxe) *Comet *Commodore Commodore may refer to: Ranks * Commodore (rank), a naval rank ** Commodore (Royal Navy), in the United Kingdom ** Commodore (United States) ** Commodore (Canada) ** Commodore (Finland) ** Commodore (Germany) or ''Kommodore'' * Air commodore ... 125cc * M.L. (1945-1948) * Cadet 125 (Rigid-frame, J5, and J6) 150cc * Cadet 150 (J15, L15, Flying Cadet L15a, Cadet M15, and Cadet M16) * Scooter (SC1/SC4) 175cc * Cavalier L17 (1958-1959) 200cc * Captain (Rigid-frame, J8 Deluxe "Plunger", K7, L20, Sports Captain L20S) 225cc * Colonel K12 250cc * Commodore L25 (1957-1962) * Superswift (1962-1963) * L25T Commando (1959-1962) * M25T Trials (1963-1966) * Cotsworth L25S scrambles (1959-1962) * M25R Scrambler and M25RS (1963-1966) ReferencesJames Motorcycles Information Website [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Motorcycles Of The 1940s
This a listing of motorcycles of the 1940s, including those on sale, introduced, or otherwise relevant in this period. Motorcycle *Acme motorcycle (1939–49) * AJS 18 * AJS 7R *AJS Model 16 * AJS Model 20 *AJS Porcupine * Ariel Red Hunter * Ariel W/NG 350 * BMW R24 * BMW R75 *BSA A7 *BSA B31 *BSA Bantam *BSA M20 *Dnepr M-72 *Douglas Mark III *Ducati 60 *Ducati 60 Sport * Ducati 65 Sport * Ducati Cucciolo *Fuji Rabbit *Harley-Davidson FL *Harley-Davidson Hummer *Harley-Davidson Servi-Car *Harley-Davidson WLA *Harley-Davidson XA *Honda D-Type *Imme R100 *Indian 841 *Indian Four (until 1942) *James Autocycle *James Comet * Lambretta Model B *Marman Twin *Matchless G80 *Mitsubishi Silver Pigeon *Norton Dominator *Norton 16H * OEC * Sunbeam S7 and S8 *Triumph Speed Twin *Triumph Tiger 100 *Triumph 3HW *Type 97 motorcycle *Vincent Black Lightning *Vincent Black Shadow *Vincent Comet *Vincent Grey Flash * Vincent Rapide *Vincent Meteor *Welbike *Zündapp KS 750 Gallery File:BSA A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Motorcycles Of The 1950s
This a listing of motorcycles of the 1950s, including those on sale, introduced, or otherwise relevant in this period. * AJS 18 (1949-1963)Total Bike Classics (accessed 2016-04-23) * * * BMW R24 * * BMW R25/2 * [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
