Good compatibility, for 110BCD cranks. 2 chainrings(39T+53T) or (50T +34T ). 53-39T，50-34T Chain Wheel for options. Speed:10s/ 11s/ 12. Compatibility: for FC-R9100/ FC-R8000/ FC-R7000. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.
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