A derailleur is a system that allows a cyclist to regulate the relationship between power and speed. This system consists of a chain placed between different sprockets on the crank and cassettes on the rear wheel. When the chain is moved to a larger sprocket on the crank and a smaller sprocket on the cassette, the power required to move forward increases and the speed decreases.
Conversely, if the chain is moved to smaller sprockets on the crank and larger sprockets on the cassette, the speed increases and the power decreases.
The biggest difference between a derailleur and other gear systems is the way the gears are selected. Derailleur systems use a chain that runs over a chainring to change gears. Other gear systems use a system of pinions and wheels that are connected together to change gears. Derailleur systems are a popular choice because they are easier to use and offer a wider range of gears. They are also easier to maintain and have a longer lifespan.
E-Bike-Touren digital aufzeichnen – ganz einfach mit Apple Health oder Strava. In diesem Artikel erfährst Du, wie Du Dein Bosch E-Bike (z. B. mit Purion-Display) über die Flow App synchronisierst – oder alternativ mit einer GPS-Smartwatch trackst. Ideal für alle, die ihre Touren analysieren oder mit Freunden teilen wollen.
Buying a children's bike is an important step – it means a little more freedom, independence, and mobility for the child. However, not every bike is automatically child-friendly. There are numerous factors that play a role in the purchase – from the right size and safety to the weight of the bike. In this article, you'll learn what to really look for when buying a children's bike.
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