Shimano GRX RX 815 Series Dealer's Manual page 43

INSTALLATION/REMOVAL
Handling electric wires
3.
Remove the temporary tape, and affix the electric wire cover to the
locations on the frame.
Affix the electric wire cover after peeling off the release liner from the back side.
Installation example to the seat tube
(wiring to the front derailleur)
Electric wire
cover
NOTICE
• To ensure adhesion, before affixing the electric wire cover, wipe off the grease
on the frame with alcohol or a cleaner.
Installation example to the lower side of the down tube
(wiring to junction [B])
Electric wire
Front
Front
Electric wire
Electric wire cover
Installation example to the chainstay
(wiring to the rear derailleur)
Electric wire
43
Electric wire
cover
Front