SHIMANO ULTEGRA FC-R8100 HOLLOWTECH II Crankset 12-speed 170.0mm 50-34T Series Color Without bottom bracket components Without CG

Part of Shimano's new 12-speed road lineup, the FC8100 crankset builds on the legendary efficiency of Shimano's chainrings and drivetrains. With new refinements for smooth 12-speed shifting, the ULTEGRA crankset is now offered in lengths from 160 to 175 mm, offering more performance and compatibility for smaller riders, triathletes, and cyclists with specific biomechanical requirements.

Optimal balance between stiffness, strength, weight and rotation efficiency.
HOLLOWGLIDE construction reduces weight but maintains strength, for improved power transfer and faster, more precise chainring shifting.