Wolf Tooth Components 25mm B-Screw for Giant Cog

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BTI part #: WQ2299
vendor part #: BSCREW25
UPC: 812719020152
model: B-screw
description: M4x25mm
color: silver

  • Longer B-screw needed when using 40t or 42t cog with most Shimano derailleurs
in stock?: NO