Shimano GRX RX 815 Series Dealer's Manual page 51

INSTALLATION/REMOVAL
Installing the shifting switches
TECH TIPS
• Two types of adapters for connecting the shifting switches to the handlebar are
included in the product. Select the adapter according to the cross-section of the
handlebar.
` Connection method
1.
Set the shifting switch to the adapter.
(1) Check the marks (R/L) on the shifting switch and the adapter.
(2) Set the shifting switch to the adapter.
Handlebar
Adapter
Shifting switch
Adapter
Electric wire for
shifting switch
Handlebar
Adapter
Mark
Mark
51