The Shimano Dura-Ace Di2 RD-R9250 Rear Derailleur is a high-performance component designed for 12-speed road bikes. Featuring Shimano's SHADOW design and integrated D-FLY connectivity, this derailleur offers lightning-fast and precise shifting, making it suitable for competitive road cycling.

Key Features:
  • SHIMANO SHADOW RD: Provides a compact and protected design for the rear derailleur.
  • Integrated D-FLY Connectivity: Allows pairing with Bluetooth and ANT+ compatible devices for customization and monitoring.
  • LED Indicator: Displays battery indicator, pairing status, adjust mode, and other system information.
  • Wide Cassette Compatibility: Works with 11-28T, 11-30T, and 11-34T cassettes for versatile gearing options.
  • Compact Design: Includes an integrated wireless unit, charger, and switch for a clean and streamlined setup.
  • Weight: 215g for a lightweight and efficient performance.
  • Direct Mount Compatible: Offers secure and precise installation on the frame.
  • CFRP Pulley Plate: Provides protection for the rear derailleur.

Who is it for?
The Shimano Dura-Ace Di2 RD-R9250 Rear Derailleur is designed for competitive road cyclists seeking a high-quality and reliable component to upgrade their 12-speed drivetrains.

Specifications

Mounting Position
Compatibility
Weight
Material
Torque Setting
Biodegradable
Bottom Bracket
Compatible Chains
Lubricant Type
Length
Volume
Manufacturer Warranty
Manual
Cage Length
Total Capacity
Low Sprocket Max
Shifting Actuation
Speed
Number of Chainrings
Top Sprocket Min
What's Included
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