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Guide RSC (B1
41 Defined Color Black Spindle Interface Type Shimano Hollowtech II Weight 73
Fits Lumina
an adjustable multi-position visor
Zipp for more than three decades has used motorsports as an inspiration to develop pioneering carbon cycling innovations
Shimano Ultegra FC-R8100 Crankset - 172.5mm, 12-Speed, 52/36t, Hollowtech II Spindle Interface, Black wheels-manufacturing Guide RSC (B1An 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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