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Bikes - Coggle Diagram
Bikes
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Facts about bikes
Bicycles are used for transport, recreation, competitive racing, courier delivery and a range of other tasks.
Bicycles are human powered vehicles, typically featuring pedals, a seat, two wheels and a frame.
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Competitive cycling includes track cycling inside velodromes, time trials, mountain biking, BMX and longer events such as the Tour de France.
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Although unicycles (one wheel) and tricycles (three wheels) don’t have two wheels, they are sometimes still referred to as ‘bikes’.
The energy required to cycle at low to medium speeds is roughly the same as the energy required to walk.
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To get efficient use of their pedaling, cyclists use a high gear when going downhill, a medium gear on flat surfaces and a low gear when going uphill.
To get efficient use of their pedaling, cyclists use a high gear when going downhill, a medium gear on flat surfaces and a low gear when going uphill.
Some bicycles feature suspension. This is especially common in mountain bikes where they are used to help deal with the vibration caused by uneven surfaces.
Road bikes typically have thinner tires inflated to higher pressures than those found on mountain bikes, taking advantage of the smoother surfaces that roads generally provide.
Before the word ‘bicycle’ become popular (coming from the French word ‘bicyclette’), bikes were typically called ‘velocipedes’.
Two wheeled transportation developed in the 1800s, from pushed powered bikes through to mechanical crank drives with pedals.
You may have heard of the Penny-farthing, an early type of bicycle that featured a front wheel significantly larger than the rear. The name comes from the old British Penny and Farthing coins which represent the large and small wheels.
The pneumatic tire came along in the later years of the 19th century along with the rear freewheel and coaster brakes.
Cycling became increasing popular in the early stages of the 20th century as cycling clubs and races caught on.
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