Bicycle brake strap-Shimano STEPS Di2 EW-EX010 Adapter for Bosch Ebike Drive Unit

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Shimano STEPS Di2 EW-EX010 Adapter for Bosch Ebike Drive Unit. Shimano Di2 Frame Junction Box
  • Frame Junction Box connects via SD50 E-tube wires to four different points: front derailleur rear derailleur cockpit junction box and battery mount
  • 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