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In July 1967, riding a purpose-built sprint-bike powered by a supercharged V-Twin 1,260 cc JAP engine, he became the first rider to record a sub-10 second time with a one-way-only 9.93 performance at Duxford for the 1 ⁄ 4-mile distance. This was a strip-only record, as for official recognition of world and national records two qualifying runs ...
1897 – The Werner Brothers of France developed a motorized bicycle with a De Dion-Bouton engine mounted above the front wheel. [8] 1898 – Laurin and Klement produce the Slavia model A moto cycle. It is a purpose-built motorcycle. [9] 1900 – Due to poor handling Werner move the engine to the bottom of the frame and patent the design.
Nicolai gearbox mountain bike Pinion P1.18 gearbox installed in a bicycle frame Instinctiv Modern full suspension carbon gearbox mountain bike. A gearbox bicycle is a bicycle that uses a gearbox [1] [2] to convert torque and rotational speed from the power source, usually the rider's legs, to what is desired at the drive wheel.
A bamboo bicycle has a frame made of bamboo. A cardboard bicycle is made of cardboard. A lugged steel bicycle has a frame made of steel. An aluminium bicycle has a frame made of aluminium alloys. A plastic bicycle was an attempt in the early 1980s to introduce a bicycle made entirely out of plastic materials instead of metal.
The speed on straight sections of the track reaches 110 km/h (70 mph) or more on longer tracks, but the limited speed on curves lowers the average. At the start of a race it takes between one and two seconds for the motorcycle to reach the "curve speed" (somewhat lower than the average), which is roughly estimated to be the equivalent of 2.5 to ...
[7]) was increased, necessitating more dish on the rear wheel drive side with a threaded hub to centre the wheel in the frame. The hub flanges spacing was not shortened on threaded hubs, rather the axle length increased from 120 mm OLD (5-speed/compact-6) to 126 mm OLD (6-speed/compact-7) through to 130 mm OLD (threaded 7-speed) for a road bike ...
The diwheel design has the two large outer wheels completely encompassing an inner frame. The inner frame is free to rotate within the wheels, and is typically supported by a common axle or idlers which roll on the wheels (see figure). Diwheels, like their more popular cousins the monowheel, have been around for almost one and a half centuries.
The bikes bear a passing resemblance to those used for speedway, but have a longer wheelbase and a more rigid frame. As with speedway, the bikes do not have brakes. The sport is divided into classes for full-rubber and studded tyres. The studded tyre category involves competitors riding on bikes with spikes up to 3 centimetres in length screwed ...
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