Fourier’s Alloy Di2 Junction Box Mount
Shimano’s electronic shifting components are wonderful, ground-breaking technology that offers virtually flawless shifting and reliability, together with great ergonomics. However, Shimano Di2 is not flawless and one of the few faults I can find is has to do with the junction box. The current 11-speed Di2 (6870 and 9070), uses a junction box (designated by…