Shimano Ultegra FC-R8100 Crankset - 170mm, 12-Speed, 50/34t, Hollowtech II Spindle Interface, Black
An 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 performance Hollowglide structure cuts weight yet maintains strength for better power transfer and quicker, more precise front shifting Product Specifics Color: Black Rings: 50/34 Number of Chainrings: Double Crank Length (mm): 170 Crank Intended Use: Road Drivetrain Speeds: 12 BB Included: No Pedal Spindle: 9/16" Spindle Interface Type: Shimano Hollowtech II Chainring BCD: 110 Shimano Asymmetric Chainline/Hub Compatibility: 130 Hubs Today's Stock Status 10+ Available to ship in 2-4 Business Days UPC: 192790894102 EAN: Not available Manufacturer Part Number: IFCR8100CX04 CK0648 181725-Q0-L