Shimano XT CS-M770 9-Speed Cassettes Aluminum carrier reduces weight and increases rigidity. Item Specifications: Weight, 323, Cassette Body Type, Shimano/SRAM 8, 9, 10 Speed, Cassette Cogs, 11-12-14-16-18-21-24-28-32, Range, 11-32, Drivetrain Speeds, 9,.
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