11 42 cassette, mountain bike sprocket, pinion with 42 teeth for 1 x 11 or 2 x 11 shifting systems. This cassette is made of steel CrMo ultrastabil, suitable for SHIMANO XTR, Deore XT and SLX 1 x or double 11 all-mountains, freeride, enduro rear derailleurs and freewheel rotors.
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