Are (road) rear derailleurs interchangeable between 9spd and 10 spd?

Question

Quick Question: Are (road) rear derailleurs interchangeable between 9spd and 10 spd? I have a 9spd Dura Ace I’d like to use for my 10spd Ultegra group. Thank in advance!

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Brian 2 years 0 Answers 177 views 0

Answers ( No )

  1. Google it, some do, some don't Depends on models.
    Best option is a good bike mechanic at the local bike store

  2. 9s Dura Ace and 10s Ultegra are.

  3. Sure. Check out Box One.

  4. You should be fine, only thing you may want to consider is changing the derailure wheels.

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