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CSM66
Lightweight Design Steel rings with engineering polymer spacers Nickel finish 8 Speed compatible Weight - 346g Attributes Cassette Spider Mat. Steel Cassette Weight 334g Cog Details 11-13-15-18-21-24-28-32 Cog Material Steel Finish Nickel-chrome Range 11-32T Speed 8
Shimano CS-R9100 Dura-Ace Cassette