The Ultegra Hollow Tech II Crankset features an optimized lightweight design that doesn’t sacrifice stiffness.
SPECS:
- Number of Chainrings: Double
- Chainline/Hub Compatibility: 130 Hubs , 135/142 Road Disc Hubs > 415 mm Chainstay
- Spindle Interface Type: Shimano Hollowtech II
- Chainring BCD: 110 Shimano Asymmetric
- Crank Intended Use: Road
- Pedal Spindle: 9/16″
- Rings: 50/34t
- Drivetrain Speeds: 11
- BB Included: No