Derailleurs

Keep your gears shifting smoothly with front and rear bike derailleurs for drivetrain maintenance and replacement. Derailleurs move the chain between chainrings or cassette sprockets, helping you adjust your gearing to suit climbs, descents, and changing terrain. Whether you're repairing a mountain bike or upgrading a road or gravel setup, compatibility is essential. Consider the number of speeds, mounting style, derailleur capacity, cassette range, and shifter compatibility when selecting a replacement.