Shimano Ultegra R8050 Series Dealer's Manual page 28

INSTALLATION
Electric wire wiring diagram (junction A side)
Time trial/triathlon handle type
SM-EW90-B
SW-R9160 (L)
ST-R8060 (L)
SW-R9160 (R)
(z)
(C)
SM-EW90-B SM-JC40/41
(A) (B)
(z)
ST-R8060 (R)
28
E-TUBE connector
Connector for remote sprinter
shifter
(z)
Option
(A)
Junction A
(B)
Junction B
(C)
E-TUBE port ×5