Box Three & Four Derailleur B-Screw with Plastic Insert
$3.99
Replacement b-screw kit for early model Box Three and Four rear Derailleurs.
SKUSP10-BX3/4-BSCREWINSERT
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Replacement b-screw kit for early model Box Three and Four rear Derailleurs.
SKUSP10-BX3/4-BSCREWINSERT