Road rear derailleurs - MTBIKER.shop

The rear derailleur is an important part of a road bike's drivetrain. It is responsible for moving the chain between the different gears on the rear cassette, allowing cyclists to adjust gear ratios to suit the terrain and riding conditions. When choosing a road derailleur, it is worth considering the following factors:

Short cage vs. long cage: Rear derailleurs are made with different cage lengths. Short cage derailleurs are typically used in racing and on flat terrain where a wide gear range is not needed. Long cage derailleurs, on the other hand, allow for a wider gear range and are often used in hilly or mountainous terrain.
Compatibility: Make sure the rear derailleur is compatible with other drivetrain components, including the derailleur and chain.
Technology: Some derailleurs are equipped with advanced features and technologies such as electronic shifting (e.g. Shimano Di2 or SRAM eTap). Electronic shifting systems offer precise and reliable shifting at the push of a button.

Popular manufacturers of road bike derailleurs include Shimano, SRAM, and Campagnolo. When upgrading or replacing components, it is recommended to stick with the same brand and series to ensure compatibility within the drivetrain.

What are the main specifics of road bike derailleurs?

Road bike derailleurs are characterized by the following features:

Precise shifting: Road bike derailleurs are designed to provide precise and fast shifting between gears, allowing riders to maintain optimal cadence and power.
Lightweight construction: Road bike derailleurs are often constructed from lightweight materials such as aluminium or carbon fibre to minimize weight and maximize performance.
Aerodynamic design: Many road derailleurs have aerodynamic shapes and designs that reduce wind resistance and increase the bike's overall speed.

How do I know if my road bike derailleur needs to be adjusted?

The main signs that your derailleur may need adjustment include difficulty shifting, chain skipping, excessive noise, or the chain rubbing against the chainring. If you experience any of these problems, it's a good idea to adjust your derailleur.

What is the difference between short- and long-cage road bike derailleurs?

Short-cage derailleurs are designed for bikes with a smaller gear range, while longer-cage derailleurs are used with larger cassettes that have a wider gear range. So the choice depends on your bike's cassette size and gear range.

How often should I clean and lubricate my road bike derailleur?

Regular maintenance is important to keep your derailleur working properly. It is recommended to clean and lubricate your derailleur at least every few months or after riding in wet or muddy conditions. This will help prevent the build-up of dirt and grime that can affect shifting performance.

Check out our video How to set up a rear derailleur