Shimano Ultegra FC-R8100 Crankset - 165mm 12-Speed 52/36t Hollowtech II Spindle Interface BLK MFPN=HCW-17 Base when open forms a

Base when open forms a triangle of 36" x 36" x 45" (92cm x 92cm x 115cm)

Bases are the foundation for the B-RAD System which allows you to mount accessories

Shaped waist contoured at rear with low profile nylon webbing and rear elastic for the ultimate in fit fine tuning

This medium-volume racing boot with carbon chassis and natural flex sole delivers stability and easy kick access

Shimano Ultegra FC-R8100 Crankset - 165mm 12-Speed 52/36t Hollowtech II Spindle Interface BLK MFPN=HCW-17 Base when open forms aAn 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