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A single-speed bicycle is a type of bicycle with a single gear ratio and a freewheel mechanism. These bicycles are without derailleur gears, hub gearing or other methods for varying the gear ratio of the bicycle. Adult single-speed bicycles typically have a gear ratio of between 55 and 75 gear inches, depending on the rider and the anticipated ...
Single-speed bicycles and fixed-gear bicycles have only one gear, and include all BMX bikes, many children's bikes, city messenger bikes, and many others. The fixed gear has no freewheel mechanism, so whenever the bike is in motion the pedals continue to spin. The pedals can, or sometimes must, be used to slow down.
Bicycle Rodeos are usually for the age group of 4–13 years old. The activities that are provided are suitable for each age so that no one is bored during the event. Each rodeo usually begins with a short lecture on bicycle safety and is then followed by a written exam to test the child's knowledge of bicycle use. Each rodeo has some type of a ...
The Raleigh Chopper is a bicycle (referred to as a wheelie bike) for children / young adults, manufactured and marketed by the Raleigh Bicycle Company of Nottingham, England. The unique design became a cultural icon and is fondly remembered by many [quantify] who grew up in that period.
Gear inches is one way of measuring the gear ratio(s) of a bicycle, so that different gears and different bicycles can be compared in a consistent manner. Gear inches is an imperial measure corresponding to the diameter in inches of the drive wheel of a penny-farthing bicycle with equivalent ( direct-drive ) gearing.
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Shimano 600 front derailleur (1980). A derailleur (French pronunciation:) is a variable-ratio bicycle gearing system consisting of a chain, multiple sprockets of different sizes, and a mechanism to move the chain from one sprocket to another.
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