Shimano Dura-Ace Dura-Ace RD-R9100/R9150 Jockey Wheels For Dura Ace RD-R9100 and RD-R9150 rear derailleurs. For Dura Ace RD-R9100 and RD-R9150 rear derailleurs. © biketartltd. M-Part Elite Crown Race.
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