Collection: Derailleurs

Derailleur gears are a variable-ratio transmission system commonly used on bicycles, consisting of a chain, multiple sprockets of different sizes, and a mechanism to move the chain from one sprocket to another.Although referred to as gears in the bike world, these bicycle gears are technically sprockets since they drive or are driven by a chain, and are not driven by one another.

Derailleurs Derailleurs are vital for smooth gear shifting. Choosing the right one depends on your bike’s drivetrain (front or rear) and speed compatibility. Consider clutch mechanisms for mountain bikes to reduce chain slap and keep your chain secure on rough terrain. For road bikes, prioritize lightweight derailleurs with precision shifting. Regular maintenance can extend the life of your derailleur and ensure optimal performance. Planet Cyclery offers a range of high-quality derailleurs to keep you shifting smoothly.