Ultegra FC-R8100 12-Speed Crankset Arm Length:170mm wrapped in flexible AmFIB softshell

wrapped in flexible AmFIB softshell fabric to block wind and moisture

Measures from 0 to 11 bars

Its Targeted Airflow Pattern mirrors the shape and position of a cyclist's body while riding

to suit your lighting needs

Ultegra FC-R8100 12-Speed Crankset Arm Length:170mm wrapped in flexible AmFIB softshellAn 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.