|
Rokon (motorcycle Manufacturer)
Rokon is an American Rochester, New Hampshire-based motorcycle manufacturer that builds two-wheel-drive off-road motorcycles which are marketed either under the company's name, or as the "Trail Breaker". Robert Korpi was also owner of Rokon International from about 1976 to 1990 History Rokon was founded in Vermont by Orla Larsen in 1963 to sell the Nethercutt Trail-Breaker, a two-wheel-drive motorcycle invented around 1958 by Charlie Fehn and built in Sylmar, California. In 1964, Rokon Inc. bought the manufacturing rights to the Trail-Breaker and marketed the bikes from their Vermont office before moving the business to New Hampshire, where they continue in business today. Design Rokon motorcycles use a combination of belt, chain and shaft drives coupled to gear boxes to drive both the front and rear wheels. Older machines were powered by a West Bend (US Motor/Chrysler Marine) 820 two-stroke engine (134cc), while newer machines have either a Honda or Kohler engine of about 6hp. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rochester, New Hampshire
Rochester is a city in Strafford County, New Hampshire, United States. The population was 32,492 at the 2020 census. In addition to the downtown area, the city contains the villages of East Rochester, Gonic, and North Rochester. Rochester is home to Skyhaven Airport and part of Baxter Lake. Rochester was one of New Hampshire's fastest growing cities between 2010 and 2020. History Origins Rochester was once inhabited by Abenaki Indians of the Pennacook tribe. They fished, hunted and farmed, moving locations when their agriculture exhausted the soil for growing pumpkins, squash, beans and maize. ''Squanamagonic'' (abbreviated to "Gonic") means "the water of the clay place hill". The town was one of four granted by colonial governor Samuel Shute of Massachusetts and New Hampshire during his brief term. Incorporated in 1722, it was named for his close friend, Laurence Hyde, 1st Earl of Rochester, brother-in-law to King James II. As was customary, tall white pine trees ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Two-stroke Engine
A two-stroke (or two-stroke cycle) engine is a type of internal combustion engine that completes a 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) 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 Scottish engineer Dugald Clerk, who patented his design in 1881. However, unlike most later t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Motorcycle Manufacturers Of The United States
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] |
Tote Gote
The Tote Gote is an off-road motorcycle that was produced from 1958 to 1970. It was developed by Ralph Bonham. History Bonham created the Tote Gote to relieve the exhaustion of walking through the Utah mountains while hunting. First called the "Mechanical Goat", it was renamed to refer to its ability to "tote" (carry) deer out of the woods while climbing inclines with the skill of a mountain goat. The first Tote Gotes could reach speeds of only 5 mph (8 km/h), too slow for functional use, and the front wheel rose off the ground when too much throttle was applied. The design was eventually perfected in November 1957. The first Tote Gote was sold on 1 June 1958. After entering mass production, 3,700 Tote Gotes were sold in 1960. The second version of the Tote Gote entered the market in 1959, called the Model A or the "Scamp". Brent Bonham's father, Bond Bonham, became president of the Bonham Corporation while Brent focused on research and development. Improvements ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
International Six Days Enduro
The International Six Days Enduro (ISDE), formerly known as the International Six Days Trial (ISDT), is the oldest 'off-road' motorcycle event on the FIM Calendar. The ISDT was first held in 1913 at Carlisle, England. It has occurred annually, apart from interruptions due to World War I and World War II, at various locations throughout the world. The early events were a true test of machine, rider skill and reliability. Held on the 'roads' of that era, today most of the routes are truly 'off-road'. Originally titled the International Six Day Trial, in 1981 the FIM decided to update the name to International Six Days Enduro, the name Enduro having been devised by the Americans and popularised by many motorcycle manufacturers also greater reflected the change in the event from a trial to more akin to a rally featuring skills more associated with cross country motocross. The sport has been associated with many great motorcyclists before its 100th anniversary in 2013; this also i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Decibel
The decibel (symbol: dB) is a relative unit of measurement equal to one tenth of a bel (B). It expresses the ratio of two values of a power or root-power quantity on a logarithmic scale. Two signals whose levels differ by one decibel have a power ratio of 101/10 (approximately ) or root-power ratio of 10 (approximately ). The unit expresses a relative change or an absolute value. In the latter case, the numeric value expresses the ratio of a value to a fixed reference value; when used in this way, the unit symbol is often suffixed with letter codes that indicate the reference value. For example, for the reference value of 1 volt, a common suffix is " V" (e.g., "20 dBV"). Two principal types of scaling of the decibel are in common use. When expressing a power ratio, it is defined as ten times the logarithm in base 10. That is, a change in ''power'' by a factor of 10 corresponds to a 10 dB change in level. When expressing root-power quantities, a change in ''ampl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pull Cord
A pullstring (pull string, pull-string), pullcord (pull cord, pull-cord), or pullchain (pull-chain, pull chain) is a string, cord, or chain wound on a spring-loaded spindle that engages a mechanism when it is pulled. It is most commonly used in toys and motorized equipment. More generally and commonly, a pullstring can be any type of string, cord, rope, or chain, attached to an object in some way used to pull or mechanically manipulate part of it. Toys Perhaps the simplest pullstring toy is the yo-yo (c. 460 BCE). The jumping jack is a more complicated animated puppet paper doll that uses a pullstring to move its arms and legs up and down. Trompos and some spinning tops use a string that is wound around the top and then pulled to make it spin. More recent toys include dolls, such as Chatty Cathy (1959), Charmin' Chatty (1963), Talking Tamu (1970), Look Around Crissy (1972), Sky Dancers (1994), and Sheriff Woody (from the ''Toy Story'' franchise), that have a pullstring buil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.jpg "Click for more on -> Decibel")
