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
R7100, R7000 Di2 105
Item Specific Details
Manufacturer Part #: KOL-R7100-R-RED
Shim R7100 - Red
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