Shimano Dura-Ace FC-R9100 Crankset

The choice of the world's best climbers, sprinters, and time trialists, the Dura-Ace R9100 crank drops weigh while maximizing power transfer. The new design, and its iconic look, is adapted for race specific disc brake systems while still offering a wide range of gearing and crank arm length options.

Features:

• Optimum power transfer
• Maintains high rigidity and reduces weight
• Best balance for light weight and efficiency
• 4-arm construction crankset
• New design crank arm, adapted for race specific disc brake system
• Redesigned gear teeth profile to fit wider chain angles
• Compatible with shorter chainstays (410 mm) on frames with 135 mm or 142 mm spacing

Specifications:

• BB Inclusion: No
• BCD: 110
• Chainline: 43.5 mm
• Crank Spindle Diameter: 24 mm
• Crankset Material: Aluminum
• Drivetrain Spacing: Road
• Interface: Hollowtech II
• Pedals Thread: 9/16''
• Primary Color: Black
• Speed: 11