Shimano Ultegra FC-8100 12-Speed Crankset

The ULTEGRA FC-R8100 crank performs two vital functions: transferring your pedaling effort into the drivetrain and ensuring the fastest, most precise front shifting available. Thanks to HOLLOWTECH II and HOLLOWGLIDE technologies, Shimano's class-leading chainring designs, the FC-R9200 strikes the optimal balance of stiffness, strength, weight and rotational performance.* 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* Available chainring options: 52-36, and 50-34T, and crank lengths: 165, 170, 172.5, and 175mm* HOLLOWTECH II Technology* BB set not included