Shimano ULTEGRA HOLLOWTECH II Crankset 2×12-speed

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An integral part of Shimano’s new 12-speed road lineup, the FC-R8100 crank 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 lengths from 160 to 175 mm, bringing performance and improved fit for smaller riders, triathletes, and riders with specific biomechanical 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
  • 52-36 and 50-34 chainring options. 160, 165, 170, 172.5, and 175 mm crank arm lengths.

Additional information

Crank Arm

165mm, 170mm, 172.5mm, 175mm

Chain Ring

50-34T, 52-36T, 53-39T


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