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SHIMANO Ultegra FC-R8100 Ultegra 12-Speed Double chainset, 52 / 36T 175 mm : Sports & Outdoors - Amazon.com
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Amazon.com: SHIMANO Ultegra ST-R8170/BR-R8170 Di2 Shift/Brake Lever and Hydraulic Disc Caliper - 2x12-Speed, Flat Mount, Black (Left/Front) : Sports & Outdoors
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