The original MTB group continues its legacy of remaining the standard for mountainbikers everywhere. Shimano Deore XT RD-M8100-SGS Shadow RD+ rear derailleur. The Shimano RD-M8100 rear derailleur for the Deore XT 1x12-speed drivetrain is suitable for the use with both the large 10-51 teeth and the smaller 10-45 teeth Shimano CS-M8100 cassette.
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