What is a Bike Hub?
As bikes have front and rear wheels, they too have front- and rear-specific hubs. The front hub is simply designed to enable the wheel to spin, while the rear hub is a little more complex as it also forms part of the bike’s transmission – the cassette or sprocket which drives the rear wheel is attached to the rear hub, which on most bikes also features a mechanism to allow you to coast or freewheel (exceptions being fixed-gear or ‘fixie’ bikes and track bikes).

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