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Bicycle

#Appropriate technology #Sustainable technologies #Cycle types

1 The top tube connects the head tube to the seat tube at the top, and the down tube connects the head tube to the ________.

2 This lean is induced by a method known as ________, which can be performed by the rider turning the handlebars directly with the hands[8] or indirectly by leaning the bicycle.

3 Early in its development, as with ________, there were restrictions on the operation of bicycles.

4 Further innovations increased comfort and ushered in a second ________, the 1890s' Golden Age of Bicycles.

5 Work: mail delivery, ________, police, couriering, and general delivery.

6 The only gearing option with a shaft drive is to use a ________.

7 The ________ (in Oxford) and Škoda also began in the bicycle business, as did the Wright brothers.

8 Lawson, and Shergold solved this problem by introducing the ________ (originated by the unsuccessful "bicyclette" of Englishman Henry Lawson),[5] connecting the frame-mounted pedals to the rear wheel.

9 For details on specific bicycle parts, see ________ and category:bicycle parts.

10 In addition, the ________ generated in the production and transportation of the food required by the bicyclist, per mile traveled, is less than 1/10th that generated by energy efficient cars.

💡 Interesting Facts

  • the United States has a numerical system of bicycle routes (similar to the system for roads and highways), which hasn't been expanded since its creation in 1982?
  • the Virginia Capital Trail connects three historic capitals of Virginia (Williamsburg, Jamestown and Richmond) with a 54-mile (87 km) long paved bicycle and pedestrian trail?
  • the chief suspect in the 1919 Green Bicycle Case tried to destroy the bicycle that tied him to the victim, but was nonetheless acquitted?
  • the Italian automaker Autobianchi was founded by the bicycle manufacturer Bianchi, tire giant Pirelli and Fiat?
  • an electronic gear-shifting system for bicycles can shift faster than a traditional mechanical system and calibrate itself to minimize maintenance?
  • camber thrust contributes to the ability of bicycles and motorcycles to negotiate a turn with the same radius as automobiles but with a smaller steering angle?
  • Quality Bicycle Products is the largest distributor of bicycle parts and accessories in the bicycle industry, with revenues of $150 million in 2008?
  • Riley started as a bicycle manufacturer in Coventry in 1890, and produced its last motorcar in 1969?
  • Adolphe Clément, an orphan who had been apprenticed to a blacksmith, rose to become a leading French manufacturer of bicycles, pneumatic tyres, motorcycles, automobiles, aeroplanes and airships (example pictured)?
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