What is the difference between single speed bicycle and fixie?
Single speed bicycles and fixed gear bikes, also known as "fixies," are both types of bikes that have only one gear ratio. However, there are some key differences between these two types of bikes that are worth noting.
One of the main differences between single speed bikes and fixies is the way in which they transfer power from the pedals to the rear wheel. On a single speed bike, the pedals are connected to the rear wheel through a freewheel mechanism, which allows the pedals to stop turning when the rider stops pedaling. This allows the rider to coast without having to pedal, and also allows the pedals to rotate in the opposite direction when the bike is moving in reverse.
In contrast, on a fixie, the pedals are directly connected to the rear wheel through a chain, and there is no freewheel mechanism. This means that the pedals are always turning when the bike is in motion, and the rider must pedal constantly in order to keep the bike moving. Additionally, on a fixie, the pedals will continue to rotate when the bike is moving in reverse, which can be disorienting for riders who are not used to this sensation.
There are also some differences in the way that single speed bikes and fixies are typically used. Single speed bikes are often used for casual riding or commuting, and are popular for their simplicity and low maintenance requirements. They are often preferred by riders who want a bike that is easy to ride and easy to take care of. Fixies, on the other hand, are often used by riders who are interested in more intense cycling, such as track racing or urban cycling. They are often preferred by riders who value the direct power transfer and minimalistic design of a fixie.
In terms of efficiency, it is generally thought that single speed bikes are more efficient than fixies, due to the presence of a freewheel mechanism. This allows the rider to coast when they are not pedaling, which can help to conserve energy and improve performance on long rides. However, it is important to note that the efficiency of a bike is not solely determined by the number of gears it has, and many other factors, such as the rider's strength and endurance, the terrain, and the bike's weight and aerodynamics, can also play a role in determining a bike's efficiency.
Overall, the main difference between single speed bikes and fixies is the presence (or absence) of a freewheel mechanism. Both types of bikes can be efficient in the right circumstances, but they are often used for different types of riding, and may be preferred by different types of riders.
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