Kogel Kogel Kolossos Derailleur Pulley Sram eTap Red/Force Black

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Offers the lowest friction possible while maintaining shift accuracy

Includes pulleys with ceramic balls and steel races

Long tooth profile on lower pulley for best chain retention

Chain catcher on lower pulley to prevent chain jams

Ride it on-road and off-road without restrictions

Fits SS (short) cage and GS (mid) cage right out of the box