Shimano SM-EW90-B Junction B Box Dura Ace Ultegra Di2 TT External E-tube 5-Port
Shimano SM-EW90-B Junction B Box Dura Ace Ultegra Di2 TT External E-tube 5-Port
Junction-A for TT/TRI
SM-EW90-B
Original Shimano parts guarantees that all components work perfectly for optimum performance and maximum safety and longevity.
- 5-port model
