In theory the di2 or gear cables are meant to run to a port on the downtube. I understand you can tidy this up by running a single di2 cable through the port for the rear brake, and then heat wrap the cables together. I'm going to try to bodge/hack the blank cover for the downtube port into a holder for the junction box to tidy it up.
In theory the di2 or gear cables are meant to run to a port on the downtube. I understand you can tidy this up by running a single di2 cable through the port for the rear brake, and then heat wrap the cables together. I'm going to try to bodge/hack the blank cover for the downtube port into a holder for the junction box to tidy it up.