Lightweight high-end road bike crankset with HOLLOWTECH II construction, HOLLOWGLIDE chainring, and 50/34-tooth compact gearing.

The Shimano Dura-Ace FC-R9100 crankset was developed for maximum power transfer, high stiffness, and the lowest possible weight. As part of the Dura-Ace R9100 groupset, it is aimed at performance-oriented road cyclists looking for a precise and efficient 2x11-speed drivetrain solution.

The wide, hollow-forged HOLLOWTECH II crank arms combine high durability with low weight. Together with the integrated steel axle, they form a stiff unit that efficiently transfers applied pedaling power to the drivetrain.

The large chainring uses HOLLOWGLIDE technology and is made of aluminum and carbon-fiber-reinforced plastic. This achieves high stiffness while reducing weight. The compact 50/34-tooth gearing offers a balanced combination of high speed on flat roads and easy-to-control gears on climbs.

Highlights:

• HOLLOWTECH II: Stiff and lightweight construction with integrated 24 mm axle.
• HOLLOWGLIDE chainring: High shifting precision and optimized power transfer.
• Compact 50/34 gearing: Versatile gearing for flat roads and challenging climbs.
• Asymmetric 4-arm crank spider: Balanced stiffness with reduced material use.
• Only approx. 609 g: Low weight for sporty road bike use.

Technical data:

• Manufacturer: Shimano
• Product series: Dura-Ace
• Model: FC-R9100
• Product type: Crankset
• Intended use: Road bike
• Drivetrain: 2-speed
• Gearing: 11-speed
• Chainring combination: 50/34 teeth
• Crank length: 175 mm
• BCD: 110 mm
• Crank spider: Asymmetric 4-arm mounting
• Bottom bracket standard: Hollowtech II
• Axle: Integrated steel axle
• Crank arm material: Anodized aluminum
• Large chainring material: Aluminum / carbon-fiber-reinforced plastic
• Small chainring material: Aluminum
• Weight: Approx. 609 g
• Color: Black / anthracite

Technologies:

• HOLLOWTECH II: The hollow-forged crank arms and integrated axle provide high stiffness, efficient power transfer, and low overall weight.
• HOLLOWGLIDE: The hollow large chainring improves stiffness and supports fast, precise shifting between the two chainrings.
• Asymmetric 4-arm crank spider: The construction distributes the forces that occur in a targeted manner and enables high stiffness with reduced material use.

Scope of delivery:

• 1x Shimano Dura-Ace FC-R9100 crankset
• 1x chainring set with 50/34 teeth
• Note: Supplied without bottom bracket, pedals, and additional mounting hardware.
• Note: Workshop packaging (without outer packaging)

Manufacturer's part no.: IFCR9100EX04 | EAN: 4524667688020

The Shimano Dura-Ace FC-R9100 combines low weight, high stiffness, and precise shifting performance in a high-performance crankset for demanding 2x11-speed road bike drivetrains.