Originally Posted by seeker333

Derailleur drive is superior to IGH in many ways:

1. derailleur systems are more efficient than IGH, as they convert more of your pedaling energy to forward motion

2. they're usually quieter

3. they shift quicker, multiple gears in a single action

4. they're user-repairable to a greater extent than IGH

5. there are more shifter options with derailleur system

6. they're generally less expensive than IGH

7. replacement parts/repairs are available/possible in many areas in a short time - not so with IGH

8. 3x9/10 derailleur system has wider gear range than IGH: 11-36t/22-32-44t = 655% range