Bicycle Mechanic how-to

How to Adjust a Rear Derailleur

Good shifting starts with adjustment.

Updated By the Career Education Institute Curriculum Team
Quick answer

Good shifting starts with adjustment. In short: shift; set; set, then complete the remaining steps below.

Step by step

  1. Shift to the smallest cog.

  2. Set the high limit screw.

  3. Set cable tension.

  4. Shift to the largest cog.

  5. Set the low limit screw.

  6. Fine-tune with the barrel adjuster.

Safety reminders for bicycle mechanics

  • Use torque specs
  • Handle e-bike batteries carefully
  • Test ride repairs
  • Wear eye protection

Derailleur · Cassette · Chainring · Truing · Spoke tension · Bottom bracket: see the full bicycle mechanic glossary.

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