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SHIMANO Cassette Sprocket, CS-R9100, DURA-ACE, 11-Speed, 11-12-13-14-15-17-19-21-23-25-28 - ICSR910011128
Shimano ICSR910011128
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UPC
689228858664
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Cog Sizes: 11 - 25t, 11 - 28t, 11 - 30t, 12 - 25t, 12 - 28t Cog Material: [five largest cogs] titanium, [six smallest cogs] nickel-plated Cro-Moly Freehub Type: Shimano 11-Speed Road Carrier Material: carbon fiber, alloy Claimed Weight: [11-25t] 6.2oz (175g), [11-30t] 7.4oz (211g)
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