USED Rear Derailleur Shimano 600 Ultegra RD-6400
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USED Rear Derailleur Shimano 600 Ultegra RD-6400
For 6 or 7-Speed
Largest rear sprocket: 28t
Smallest rear sprocket 12t
Front difference: 13 teeth or less
Total capacity (front difference plus rear difference) 28 teeth or less
Not compatible with Dura-Ace shifters SL-7400 or SL-7401
