Shimano Ultegra FC-08 Crankset – 172.5mm 11-Speed 52/36t 110 Asymmetric BCD Hollowtech II Spindle Interface Black. An integral part of Shimanos 11-speed road lineup the Ultegra FC-08 crank builds upon Shimanos legendary front shifting and transmission efficiency. This crank is designed to provide stiffness strength weight savings and rotational performance.

Hollowtech hollow forged crank arms not only the bikes weight but decreases rotating mass to aid in acceleration

Hollowtech technology reduces weight without reducing the cranks strength and rigidity

Outer rings Hollowglide technology cuts down on weight yet maintains strength for better power transfer and quicker and more precise shifting

Compatible with Shimano HG-EV and HG-X11 chains

43.5mm chainline / 146mm Q-factor

Asymmetrical 110 BCD

For outboard bottom brackets (sold separately)

• TECH SPECS

Rings 52/36Number of Chainrings DoubleDrivetrain Speeds 11Chainring BCD 110 Shimano AsymmetricChainline/Hub Compatibility 130 HubsChainline/Hub Compatibility 135/142 Road Disc Hubs < 415 mm ChainstayChainline/Hub Compatibility 135/142 Road Disc Hubs > 415 mm ChainstayColor BlackCrank Length (mm) 172.5Crank Intended Use RoadWeight 681BB Included NoPedal Spindle 9/16″Spindle Interface Type Shimano Hollowtech IIDefined Color Black