Shimano FC-R8100 Ultegra Double Crankset - 12 Speed 175mm x 34/50t

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
• 148mm Q-factor
• 44.5mm chainline
• Number of Chainrings: Double
• Pedal Spindle: 9/16"
• Crank Intended Use: Road
• Chainline/Hub Compatibility: 130 Hubs
• Rings: choose; 50/34, or 52/36
• Spindle Interface Type: Shimano Hollowtech II
• Drivetrain Speeds: 12
• Chainring BCD: 110mm 4-Bolt, Shimano Asymmetric
• BB Included: No
• Color: Black