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A new company, A J Stevens & Co , was founded in 1909 to manufacture motorcycles and at the 1912 London Motorcycle show they launched the 698cc side valve AJS Model D. Featuring cylinders at 50 degrees and chain drive to a three speed countershaft gearbox with a hand gear change, the original engines had quickly removable cylinder heads but ...
In early 2020 the 530 was discontinued and the 560 launched in its place. The 560 was an updated version of the 530 and complied to the latest emissions regulations. [ 43 ] [ 44 ] In 2022 Yamaha launched a new version of the 560 called the TMax Techmax with a new all colour dashboard and a full set of electronics including ABS, Traction Control ...
Chain tensioner on a single-speed bicycle Belt tensioner on a belt-drive bicycle Hydraulic bolt tensioner Hydraulic Puller-tensioner . A tensioner is a device that applies a force to create or maintain tension. The force may be applied parallel to, as in the case of a hydraulic bolt tensioner, or perpendicular to, as in the case of a spring ...
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Roller chain and sprocket The sketch of roller chain, Leonardo da Vinci, Codex Atlanticus. Roller chain or bush roller chain is the type of chain drive most commonly used for transmission of mechanical power on many kinds of domestic, industrial and agricultural machinery, including conveyors, wire- and tube-drawing machines, printing presses, cars, motorcycles, and bicycles.
GasGas is a Spanish motorcycle and bicycle [1] manufacturer specializing in off-road and trial bikes. The company was founded in 1985 in Salt, Girona , Catalonia , by Narcìs Casas and Josep Pibernat after the closure of the original Bultaco factory, where they previously worked.
The valves were driven by a chain with a new hydraulic tensioner. The pistons were made lighter by 1.4 g (0.049 oz) [ 43 ] and used ion-coated rings and shot peened connecting rods . [ 25 ] The crankcase breather system had reed valves added to control pressure waves in the intake airbox, a way of avoiding power loss.
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