New arrival
SKU: IEWJC200

Di2 Junction Box

$26.00
By Shimano

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Description

Di2 Junction Box

Shimano Di2 Frame Junction Box

Key Features

  • 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 http://e-tubeproject.shimano.com/