Mountain Bike Rear Derailleur Troubleshooting

Make the bike rideable by grabbing the derailleur with one hand and sticking a 5mm hex wrench into the derailleur bolt the one holding the derailleur on the bike with the other.

Mountain bike rear derailleur troubleshooting. Regular guy mountain biking 153 296 views. Crashing or throwing the bike down on the right side can bend this hanger. While pedaling the bike locate the cable leading to your rear derailleur and pull on it gently. The rear derailleur is attached to the frame with a hanger these are commonly aluminum but may also be steel.

For older bikes with front derailleur issues the solution is quite simple. We cover the 101 of mountain bike rear derailleurs rear mech s as the brits say in this video and talk about all the common things you must know when installing troubleshooting adjusting or. Remove the front derailleur and replace the chainrings with a single 1x specific ring and wide range cassette. Once bent the derailleurs and pulleys are not going to align with the sprockets.

Front derailleur advanced troubleshooting https. The highest gear smallest sprocket on the rear derailleur is actually the point of lowest cable tension meaning the derailleur is doing the least work and is thus easiest to adjust. The derailleur is moved by tightening or relaxing the cable tension. The rear derailleur is the heart of most mountain bike drivetrains.

As the 1x drivetrain becomes standard issue on capable cross country trail and enduro bikes we re left with one shifter cable and derailleur to adjust for top to bottom gear range performance.