The Ultegra Hollow Tech II Crankset features an optimized lightweight design that doesn’t sacrifice stiffness.

• Wider gear pitch increases clearance between chain and leading teeth
• Defined Color: Black
• Rings: 50/34
• Spindle Interface Type: Shimano Hollowtech II
• Chainring BCD: 110 Shimano Asymmetric
• Color: Black
• Chainline/Hub Compatibility: 130 Hubs
• Chainline/Hub Compatibility: 135/142 Road Disc Hubs > 415 mm Chainstay
• Drivetrain Speeds: 11
• Weight: 674
• Number of Chainrings: Double
• Crank Intended Use: Road
• BB Included: No
• Pedal Spindle: 9/16″
• Crank Length (mm): 170