SHIMANO Ultegra FC-R8100 Crankset,12-Speed, Hollowtech II Spindle Interface, Black (170mm / 52/36 / 12-Speed)

SHIMANO Ultegra FC-R8100 Crankset,12-Speed, Hollowtech II Spindle Interface, Black (170mm / 52/36 / 12-Speed)

• An 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.
• Optimal balance of stiffness, strength, weight and rotational performance
• Hollowglide structure cuts weight yet maintains strength for better power transfer and quicker, more precise front shifting
• 148mm Q-factor, 44.5mm chainline, double
• Chainring BCD: 110 Shimano Asymmetric