Chainring for 105 R7000 R8000 DA9100 53 39T 110BCD Double Aluminum 7075

Good compatibility, for 110BCD cranks. 2 chainrings(39T+53T) or (50T +34T ). High strength Aluminum 7075-T651. 53-39T，50-34T Chain Wheel for options. Compatibility: for FC-R9100/ FC-R8000/ FC-R7000.

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