How to Fix a Misaligned Bike Derailleur
Quick Answer
Check the hanger, adjust the derailleur, and set the limit screws.
How to troubleshoot a Misaligned Bike Derailleur
A misaligned derailleur causes poor shifting. This guide covers realigning a bike derailleur.
Step-by-Step Fix
- Check the derailleur hanger is straight.
- Adjust the derailleur position.
- Set the high and low limit screws.
- Adjust the cable tension.
- Test shifting through all gears.
Common Error Codes
| Code | Meaning | Resolution |
|---|---|---|
| Shifting poor | Derailleur misaligned | Realign the derailleur. |
| Chain rubs | Incorrect adjustment | Adjust the limit screws. |
Frequently Asked Questions
Why is my derailleur misaligned?
Impact damage or loose mounting bolt.
Can I realign a derailleur myself?
Yes, with basic tools.