Shimano Ultegra FC-R8100 Crankset - 160mm 12-Speed 50/34t Hollowtech II Spindle Interface BLK MFPN=ERDM3100SGS Double butted 6061-T6 aluminum construction

Double butted 6061-T6 aluminum construction

Model Float X Description Shaft

51mm valve stem with removable core

}Zipp Rear Axle End Cap Set for ZM2 Hubs - 12 x 148 XD and 10/11-Speed Freehub Bodies

Large extruded and CNC'd aluminum platform cageSPD compatible design with 5 degrees of float

Shimano Ultegra FC-R8100 Crankset - 160mm 12-Speed 50/34t Hollowtech II Spindle Interface BLK MFPN=ERDM3100SGS Double butted 6061-T6 aluminum constructionAn 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