Shimano Di2 A-Junction Box

$129.99
Article number: 35-04-03
Availability: In stock (1)

Shimano Di2 Junction Box

  • All Di2 components on the bicycle require the same firmware version. Using Di2 components with different firmware versions may cause malfunctions
    • SM-EW90-A 3-Port Cockpit Junction Box connects 1 pair of Di2 shifters to the frame junction box via 3 SD50 E-tube wires
    • SM-EW90-B 5-Port Cockpit Junction Box connects up to 2 pairs of Di2 shifters to the frame junction box via 5 SD50 E-tube wires
  • LED battery charge level indicator
  • Rear Derailleur adjustment mode
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