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8mm Number of Speeds 9-Speed Chain Compatibility 9-Speed
Upgrade kit for Kuat NV 2
Class 5 frame Vibration Reduction System
Features a wide
friction modifiers
Shimano Ultegra FC-R8100 Crankset - 170mm, 12-Speed, 52/36t, Hollowtech II Spindle Interface, Black wear-indicator 8mm Number of Speeds 9-SpeedAn integral part of the Shimano Ultegra 12 speed road lineup, the FC R8100 crankset builds upon Shimano's legendary front shifting and transmission efficiency. With new refinements for seamless 12 speed shifting, the Ultegra crank is now offered in a wide variety of lengths, bringing performance and improved fit for smaller riders, triathletes, and riders with specific biomechanic requirements. 148mm Q factor 44. 5mm chainline Optimal balance of
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