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Amazon.com : Shimano Ultegra 6800 11-Speed FC-6800 Left Hand Crank Arm 170 mm - Y1P498020 : Sports & Outdoors
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SHIMANO FC 6800 ULTEGRA 11S 22S Crankset 53-39T 50-34T 170mm 172.5mm Bicycle Components Road Bike Chain Wheel Accessory Parts - AliExpress
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Shimano Ultegra FC-6800 Chainrings (Black) (2 x 11 Speed) (110mm BCD) (Outer) (52T) - Y1P498070 - In The Know Cycling
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