ST-RX825

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  • Aug 30, 2024

    Ver. 4.0.1

    ■ Changes
    Security performance for wireless communications between the shifter and rear derailleur has been improved.
    Click here to view FAQs for more information. https://bike.shimano.com/faq/DI20A#D-7030
    *The firmware for both the shifter and rear derailleur must be updated for proper operation of the Di2 system.
    * Wireless firmware update is not available for this product.
    Update the firmware over a wired connection or contact your place of purchase or a distributor.
    ■ Others
    General bug fixes.

  • May 24, 2024

    Ver. 4.0.0

    Firmware released.