|
Ice Racing
Ice racing is a form of racing that uses cars, motorcycles, snowmobiles, all-terrain vehicles, or other motorized vehicles. Ice racing takes place on frozen lakes or rivers, or on groomed frozen lots. As cold weather is a requirement for natural ice, it is usually found at higher latitudes in Canada, the northern United States, and in northern Europe, although limited indoor events are held in warmer climates, typically on ice hockey rinks (motorcycles and ATVs only). Tracks in North America vary from 1/4 mile to several mile-long (~400 m to several kilometer-long) circuits. Track Tracks used for ice racing include ovals and road courses. Some tracks are dirt track racing tracks with the snow plowed off them. When there is no natural snow, an icy surface may be created by spraying the dirt surface with water when the temperature is below freezing. Artificial ice tracks (usually speed skating ovals) are used where it is not possible to construct natural ice tracks. Some track ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ice Speedway
Ice speedway is a developed form of motorcycle speedway racing, featuring racing on frozen surfaces. The sport uses bikes enhanced for the terrain. Participants can compete at international level. Outline The bikes race counterclockwise around oval tracks between 260 and 425 metres in length. The race structure and scoring are similar to that in Motorcycle speedway, speedway. History Ice speedway is an evolution of dirt speedway racing, which first started in 1923. Staten Lorenz of Michigan is generally credited with the invention of the sport, in 1975. The first ice speedway event was organized and promoted by a local motorcycle dealer in Huntsville, Alabama. The third ever event was hosted at the Kent State University hockey field house, which speedway rider Gary Densford was invited to attend by his friend Bob Hetrick. At this event, Hetrick finished first and Densford finished second. Densford went on to promote this new sport, forming the ICE (international Championshi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Russia
Russia, or the Russian Federation, is a country spanning Eastern Europe and North Asia. It is the list of countries and dependencies by area, largest country in the world, and extends across Time in Russia, eleven time zones, sharing Borders of Russia, land borders with fourteen countries. Russia is the List of European countries by population, most populous country in Europe and the List of countries and dependencies by population, ninth-most populous country in the world. It is a Urbanization by sovereign state, highly urbanised country, with sixteen of its urban areas having more than 1 million inhabitants. Moscow, the List of metropolitan areas in Europe, most populous metropolitan area in Europe, is the capital and List of cities and towns in Russia by population, largest city of Russia, while Saint Petersburg is its second-largest city and Society and culture in Saint Petersburg, cultural centre. Human settlement on the territory of modern Russia dates back to the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fédération Internationale De Motocyclisme
The International Motorcycling Federation (Fédération Internationale de Motocyclisme) or (FIM) is the global governing/sanctioning body of motorcycle racing. It represents 123 national motorcycle federations that are divided into six continental unions. There are seven motorcycle-racing disciplines that FIM covers, encompassing 82 world championships as well as hundreds of secondary championships: enduro, Motorcycle trials, trial, Road racing, circuit racing, motocross and supermoto, Motorcycle racing#Cross-country rally, cross-country, Electric bicycle, e-bike, and track racing. FIM is also involved in many non-racing activities that promote the sport, its safety, and support relevant public policy. The FIM is also the first international sporting federation to publish an Environmental Code, in 1994. In 2007, a Commission for Women in Motorcycling was created by the FIM in order to promote the use of powered two-wheelers and the motorcycle sport among women. History The FIM w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 has many professional domestic and international competitions in a number of countries. Administered internationally by the Fédération Internationale de Motocyclisme (FIM), the sport became popular in the 1920s and remains so today. Nature of the sport Track racing involves between four and six, sometimes eight competitors riding around an oval track in a counter-clockwise direction over a set number of laps—usually four to six, sometimes eight—with points being awarded to all but the last finisher on a sliding scale. These points are accumulated over a number of heats, with the winner being the team or individual who has scored the most overall. The machines used are customised motorcycles, these have no brakes and are fuelled wit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jawa Motors
JAWA () is a motorcycle and moped manufacturer founded in Prague, Czechoslovakia, in 1929 by František Janeček,Jawa company Retrieved 2014-03-01 who bought the motorcycle division of Wanderer. The name JAWA was established by concatenating the first letters of ''Ja''neček and ''Wa''nderer. In the past, especially in the 1950s, JAWA was one of the top motorcycle manufacturers and exported its 350 model to over 120 countries. The best known model was the 350 Pérák, and in the 1970s the 350 Californian. It appeared in typical black and red coloring from the US to New Zealand. After 1990 a significant loss of production occurred. A successor company was formed in 1997 in [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
4-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 direction. The four separate strokes are termed: #Intake: Also known as induction or suction. This stroke of the piston begins at top dead center (T.D.C.) and ends at bottom dead center (B.D.C.). In this stroke the intake valve must be in the open position while the piston pulls an air-fuel mixture into the cylinder by producing a partial vacuum (negative pressure) in the cylinder through its downward motion. #Compression: This stroke begins at B.D.C, or just at the end of the suction stroke, and ends at T.D.C. In this stroke the piston compresses the air-fuel mixture in preparation for ignition during the power stroke (below). Both the intake and exhaust valves are closed during this stage. #Combustion: Also known as power or ignition. This is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Traction (engineering)
Traction, traction force or tractive force is a force used to generate Motion (physics), motion between a body and a tangential surface, through the use of either dry friction or shear force. It has important applications in vehicles, as in ''tractive effort''. ''Traction'' can also refer to the ''maximum'' tractive force between a body and a surface, as limited by available friction; when this is the case, traction is often expressed as the ratio of the maximum tractive force to the normal force and is termed the ''coefficient of traction'' (similar to coefficient of friction). It is the force which makes an object move over the surface by overcoming all the resisting forces like friction, normal loads (load acting on the tiers in negative ''Z'' axis), air resistance, rolling resistance, etc. Definitions Traction can be defined as: In vehicle dynamics, tractive force is closely related to the terms tractive effort and drawbar pull, though all three terms have different definit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fender (vehicle)
Fender is the American English term for the part of an automobile, motorcycle or other vehicle body that frames a wheel well (the fender underside). 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. Sticky materials, such as mud, may adhere to the smooth outer tire surface, while smooth, loose objects, such as stones, can become temporarily embedded in the tread grooves as the tire rolls over the ground. These materials can be ejected from the tire's surface at high velocity as the tire imparts kinetic energy to the attached objects. For a vehicle moving forward, the top of the tire rotates upward and forward and can throw objects into the air at other cars or pedestrians in front of the vehicle. In British English, the fender is called the wing. (This may refer to either the front or rear fenders. However, in mode ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Screw
A screw is an externally helical threaded fastener capable of being tightened or released by a twisting force (torque) to the screw head, head. The most common uses of screws are to hold objects together and there are many forms for a variety of materials. Screws might be inserted into holes in assembled parts or a screw may form its own thread. The #Differentiation between bolt and screw, difference between a screw and a bolt is that the latter is designed to be tightened or released by torquing a Nut (hardware), nut. The screw head on one end has a slot or other feature that commonly requires a tool to transfer the twisting force. Common tools for driving screws include screwdrivers, wrenches, coins and hex keys. The head is usually larger than the body, which provides a ''bearing surface'' and keeps the screw from being driven deeper than its length; an exception being the ''set screw'' (aka grub screw). The cylindrical portion of the screw from the underside of the head t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rubber
Rubber, also called India rubber, latex, Amazonian rubber, ''caucho'', or ''caoutchouc'', as initially produced, consists of polymers of the organic compound isoprene, with minor impurities of other organic compounds. Types of polyisoprene that are used as natural rubbers are classified as elastomers. Currently, rubber is harvested mainly in the form of the latex from the Hevea brasiliensis, Pará rubber tree (''Hevea brasiliensis'') or others. The latex is a sticky, milky and white colloid drawn off by making incisions in the bark and collecting the fluid in vessels in a process called "tapping". Manufacturers refine this latex into the rubber that is ready for commercial processing. Natural rubber is used extensively in many applications and products, either alone or in combination with other materials. In most of its useful forms, it has a large stretch ratio and high resilience and also is buoyant and water-proof. Industrial demand for rubber-like materials began to out ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
