An integral part of Shimano's 11-speed road lineup the Ultegra FC-08 crank builds upon Shimano's 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 bike's weight but decreases rotating mass to aid in acceleration

Hollowtech technology reduces weight without reducing the crank's strength and rigidity

Outer ring's 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)

Rings	50/34, 52/36
Number of Chainrings	Double
Drivetrain Speeds	11
Chainring BCD	110 Shimano Asymmetric
Chainline/Hub Compatibility	135/142 Road Disc Hubs > 415 mm Chainstay
Color	Black
Crank Length (mm)	165, 170, 172.5, 175
Crank Intended Use	Road
Weight	674, 681
BB Included	No
Pedal Spindle	9/16"
Spindle Interface Type	Shimano Hollowtech II
Defined Color	Black