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Shimano Dura-Ace Di2 12v Rear Derailleur RD-R9250

$513.00 $748.00
by Shimano
Type: rear derailleurs
SKU: IRDR9250F
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Shimano Dura-Ace Di2 12V RD-R9250 Rear Derailleur

Maximum performance, shifting speed, and cutting-edge technology: the Shimano Dura-Ace Di2 RD-R9250 is the ultimate rear derailleur for those who demand absolute precision and podium-level speed.

Designed for the new 12-speed Dura-Ace groupset, it integrates the system charging port and the wireless connection unit, offering a super responsive and always reliable transmission. Thanks to the new cage architecture, a single length is now compatible with cassettes from 28T to 34T, providing superior versatility without sacrificing racing performance.

Main Features

  • Faster shifting than ever: the new generation Di2 system ensures a shifting speed up to 58% faster compared to the RD-R9150 model, for instant and smooth gear changes.

  • Single cage length compatible with low sprockets 28–34T: maximum versatility for every setup.

  • Integrated wireless unit for a stable, responsive, and clean aesthetic connection.

  • Integrated charging port, more practical and intuitive.

Advanced Functions

  • LED status indicator with immediate information on:

    • Battery level

    • Pairing / connection

    • Adjustment mode and settings

  • Wider gear range to optimize pedaling on climbs, sprints, and mixed routes.

Premium Materials

  • Rear derailleur plate in CFRP (Carbon Fiber Reinforced Polymer): lightness, stiffness, and durability at the highest levels.