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Shimano Dura Ace SM-EW90-A Di2 3 Port Junction Box (A)
-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/
-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
-OEM front wiring kit for Dura-Ace Di2 9070
-LED battery charge level indicator
-Rear Derailleur adjustment mode
-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/
-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
-OEM front wiring kit for Dura-Ace Di2 9070
-LED battery charge level indicator
-Rear Derailleur adjustment mode
$2.98
Original: $9.95
-70%Shimano Dura Ace SM-EW90-A Di2 3 Port Junction Box (A)—
$9.95
$2.98Description
-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/
-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
-OEM front wiring kit for Dura-Ace Di2 9070
-LED battery charge level indicator
-Rear Derailleur adjustment mode
