Rear derailleur

When replacing a MTB derailleur , we advise you to use the same chain length.

For a custom assembly or a development modification, the only way to avoid mistakes is to calculate the "total capacity" of the derailleur , the calculation formula for which is as follows: Total capacity = (Number of teeth on the largest sprocket - Number of teeth on the smallest sprocket ) + (Number of teeth on the largest chainring - Number of teeth on the smallest chainring ).

In the world of cycling, the derailleur is the composer of gear changes, much like a maestro conducting an orchestra. It encompasses the front derailleur, which coordinates the chainrings, and the rear derailleur, which synchronizes the chain's movement on the sprockets. Cyclists compose symphonies of gear changes using a lever that adorns the handlebar . To discover the secrets of a bicycle's gears, simply multiply the number of chainrings on the crankset by the number of sprockets on the rear hub .

Imagine this scenario: if your bike has 3 chainrings and 7 sprockets, it proudly offers you a varied range of 21 speeds.

Shimano or SRAM Rear derailleur

• Shimano derailleurs are not just any component; they form the backbone of many bicycles, from standard models to rugged MTB , and offer a wide range of choices in the Deore XT and XTR categories. The materials used for the derailleur are steel, aluminum, carbon, and titanium. Steel is distinguished by its durability, aluminum by its lightness, carbon by its strength, and titanium by its balance of strength and lightness. Regularly maintaining your front and rear derailleurs is essential for maintaining the health of your bike. Proper maintenance of these components ensures effortless gear changes and protects them from premature wear, allowing for smooth riding throughout your cycling adventures.
• The SRAM derailleur is a worthy competitor to Shimano in the MTB drivetrain market. This American company offers a diverse range of derailleur models in the bicycle component sector. Ensure that the cage size is compatible with the capacity of your SRAM cassette. If the total number of teeth exceeds the cage dimensions, excessive chain tension can result, potentially leading to chain breakage. Regular maintenance of the rear derailleur is essential and requires cleaning. Pay particular attention to the cleanliness of the pulleys, ensuring they are not in contact with grease. Remember that it is crucial to replace them as soon as any signs of wear appear.