Shimano Ultegra R8050 Series Dealer's Manual page 47

INSTALLATION
Installing the shifting switch
3
4
5
(z)
Make guide marks on the handlebars at
the switch installation positions, and
secure the switches with double-sided
tape.
(A)
Align the hole in the handlebar tape
which was cut with the switch.
Wind on the handlebar tape.
At this time, be sure to overlap the tape
below the switches.
(z)
Overlap
47
(A)
Double-sided tape
NOTE
In order to protect the cable, use handlebar
tape to secure the cable. Do not secure the
cable with the zip tie or the bracket for the
cycle computer.
TECH TIPS
The illustration shows an example of how to
wind the handlebar tape.
Wind the handlebar tape on securely so that
the switches do not move.