The Shimano Dura-Ace R9100 is a completely redesigned road groupset aimed at professionals. Every component has been designed from the ground up to create the most innovative drivetrain of all time.
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Dura-Ace FD-R9100 34.9mm front road derailleur
The derailleur's cables have been routed in the smallest arc to reduce the force required to change gears.
The cable tension adjustment integrated into the derailleur allows for quick and easy operation.
Rigid and lightweight construction.
Optimal spring tension ensures lightweight shifting to lower gears.
Provides smooth gear changes even under load.

• Model: Dura Ace R9100
• Intended use: road
• Carriage material: aluminum, nickel-plated
• For drivetrain: 2x11-speed
• Angle: 61-66°
• Max sprocket size: 46-55T
• Capacity: 16T
• Chainline: 43.5mm
• Chainline: bottom
• Carriage: Down Swing
• Mounting: 34.9mm clamp
• Compatible chain: HG-EV 11-speed, HG-X11
• Manufacturer's weight: 69g
• 43.5mm chainline.
• Maximum disc size: 46-55T.
• 16T capacity.
• Supported seat tube angle of 61-66 degrees.
• Compatible Handlebars: Shimano Dura-Ace: ST-R9100 / ST-R9120 / ST-9000 / ST-9001.

Japanese company founded in 1921 by Shozaburo Shimano.
It is one of the largest manufacturers of bicycle parts in the world.
In addition to components, it also produces cycling shoes and clothing, accessories, cleaning products and bicycle tools.
In addition, it manufactures fishing, snowboarding and golf accessories.
Shimano is the most popular bicycle parts brand in the world.