Shimano Deore LX Rear Derailleur. Silver on the LX, black on the XT and XTR. RD-M570 SGS Long cage (86mm). check that B-plate 😕. (SL,BL,BR,FD,FC4&5,RD,CS,HB,FH). Aluminium alloy B-axis setting plate, with its oversized stop.
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