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The MOT test (or simply MOT) is an annual test of vehicle safety, roadworthiness aspects and exhaust emissions required in the United Kingdom for most vehicles over three years old. In Northern Ireland the equivalent requirement applies after four years. [ 1 ]
In internal combustion engines, a split-single design is a type of two-stroke where two cylinders share a single combustion chamber. The first production split-single engine was built in 1918 and the design was used on several motorcycles and cars until the mid-1950s, although Puch continued producing split-single engines for motorcycles until ...
In the 1960s Japanese motorcycles introduced the now-familiar horizontally split clamshell which has become almost universal. Modern horizontally split four stroke engines invariably use single oil reservoir (whether wet- or dry-sump ) but, while this simplifies matters, it is arguable that the previous system of having different types of oil ...
WSP Policy and Research UK, et al., Motorcycles and congestion: the effect of modal shift: Summary Final Report. 2004, WSP for Uk Department for Transport: Cambridge UK. p. 26. Burge, P., et al., The modelling of motorcycle ownership and usage: a UK study. Transportation Research Record J Transportation Research Board, 2007(2031): p. 59-68.
Motorcycles with a V-twin engine mounted with its crankshaft mounted in line with the frame, e.g. the Honda CX series, are said to have "transverse" engines, [1] [2] while motorcycles with a V-twin mounted with its crankshaft mounted perpendicular to the frame, e.g. most Harley-Davidsons, are said to have "longitudinal" engines.
In the UK before October 2000, a person who passed a motorcycle test was automatically granted a full sub-category B1 licence, [citation needed] allowing them to drive a lightweight car (an unladen weight of 550 kg (1,213 lb) or less), a motor quadricycle or a motor tricycle. Since 2000 these small cars have been split in two different ...
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BSA acquired the Triumph marque in 1951, and the BSA C15 250 cc four stroke was derived from the 200 cc Triumph Tiger Cub, itself coming from the 150cc Terrier. Edward Turner became head of the BSA automotive division and in 1958 BSA introduced the concept of unit construction, where the engine and gearbox were combined in one piece rather than as separate components.