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Description & Specs
Shimano BT-R1A External Di2 Battery. Shimano Di2 Batteries. Must purchase battery charger and power cable to complete the system.
  • All Di2 components on the bicycle require the same firmware version. Using Di2 components with different firmware versions may cause malfunctions
  • Use Di2 system checker to update component firmware from http://e-tubeproject.shimano.com/
    • TECH SPECS
    Shifter/Derailleur Compatibility Dura-Ace 7970 Di2
    Shifter/Derailleur Compatibility Dura-Ace 9070 Di2
    Shifter/Derailleur Compatibility Shimano Ultegra Di2
    Description & Specs
    Shimano BT-R1A External Di2 Battery. Shimano Di2 Batteries. Must purchase battery charger and power cable to complete the system.
  • All Di2 components on the bicycle require the same firmware version. Using Di2 components with different firmware versions may cause malfunctions
  • Use Di2 system checker to update component firmware from http://e-tubeproject.shimano.com/
    • TECH SPECS
    Shifter/Derailleur Compatibility Dura-Ace 7970 Di2
    Shifter/Derailleur Compatibility Dura-Ace 9070 Di2
    Shifter/Derailleur Compatibility Shimano Ultegra Di2

    Shimano BT-R1A External Di2 Battery

    Translation missing: en.products.product.sku:BA7970

    Regular price
    $89.98
    Sale price
    $89.98
    Regular price
    $119.98
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