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Your cart is empty.Di2 Frame Junction BoxFeatures-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..com/
Douglas Perry
Reviewed in the United States on July 25, 2024
Easy and small for in frame mounting with Velcro
Patrick Prouty
Reviewed in the United States on May 23, 2024
I connected the wireless Di2 shifter's using this junction.
MashThe11
Reviewed in the United States on July 5, 2023
This was purchased for the sole reason of updating the firmware on the 12-speed shifters. It allows you to connect the front derailleur cable to the the shifters with either one or two cables and update the shifter firmware. It worked without issue for this use.
Herr S.
Reviewed in the United States on November 22, 2023
Not much else to say, this Shimano Di2 junction box works perfectly.
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