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A derailleur is an external gear system that shifts the chain between different gears by moving the chain across multiple sprockets. An internal hub, on the other hand, contains all the gears inside the rear wheel hub, providing a cleaner look and protection from the elements. Derailleurs are typically lighter and offer a wider range of gears, while internal hubs are more durable and require less maintenance.

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5mo ago

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What is the purpose of a derailleur in a bicycle?

The purpose of a derailleur in a bicycle is to shift the chain between different gears, allowing the rider to adjust the resistance and speed of pedaling.


What is the purpose of the derailleur screw in a bicycle's gear system?

The derailleur screw in a bicycle's gear system is used to adjust the alignment of the derailleur, which helps to ensure smooth and precise shifting between gears.


What is the front derailleur clamp size for this bicycle?

The front derailleur clamp size for this bicycle is 34.9mm.


What is the purpose of the front derailleur cable guide on a bicycle?

The purpose of the front derailleur cable guide on a bicycle is to route and guide the cable that controls the movement of the front derailleur, which is responsible for shifting the chain between the chainrings on the bike's crankset.


What are the differences between a long cage and short cage derailleur, and how do these differences impact the performance of a bicycle?

A long cage derailleur has a longer arm that can accommodate a wider range of gears, making it suitable for bikes with multiple front chainrings. A short cage derailleur has a shorter arm and is better for bikes with a single front chainring. The choice between the two can impact the bike's gear range and shifting performance.


How does the chain move through the derailleur on a bicycle?

The chain on a bicycle moves through the derailleur by being guided by the pulley wheels and cage of the derailleur. When the rider shifts gears, the derailleur moves to adjust the tension on the chain, allowing it to smoothly transition between different gears on the cassette or chainrings.


What is the purpose of the derailleur hanger bolt in a bicycle's gear system?

The derailleur hanger bolt in a bicycle's gear system is used to attach the derailleur hanger to the frame of the bike. This component plays a crucial role in ensuring that the derailleur functions properly and allows for smooth shifting between gears.


What is the rear derailleur capacity of this bicycle model?

The rear derailleur capacity of this bicycle model is the maximum difference in teeth between the smallest and largest gears it can accommodate, typically around 30 teeth.


What does a derailleur do in a bicycle's gear system?

A derailleur is a device in a bicycle's gear system that moves the chain between different gears on the cassette or chainrings, allowing the rider to change the resistance and speed of pedaling.


What is a derailleur hanger and how does it function in a bicycle's gear system?

A derailleur hanger is a small metal part on a bicycle frame that holds the rear derailleur in place. The rear derailleur is a component that moves the chain between different gears on the rear wheel. The derailleur hanger helps to keep the rear derailleur aligned properly, allowing for smooth and precise shifting of gears while riding.


What is the function of a derailleur spring in a bicycle's gear shifting mechanism?

The derailleur spring in a bicycle's gear shifting mechanism is responsible for moving the derailleur to shift the chain between different gears. It provides the tension needed to move the derailleur smoothly and accurately, allowing the rider to change gears easily while riding.


How can I effectively clean a derailleur on a bicycle?

To effectively clean a derailleur on a bicycle, follow these steps: Remove the chain from the derailleur. Use a degreaser and a brush to clean the derailleur thoroughly. Rinse the derailleur with water and dry it completely. Lubricate the moving parts of the derailleur. Reattach the chain and adjust the derailleur if necessary.