Shimano GRX RX 815 Series Dealer's Manual page 82

INSTALLATION/REMOVAL
Installing the battery
3.
Secure the front of the battery mount together with the included
spacer.
Tighten them together when installing the bottle cage. Refer to the owner's manual for
the bottle cage for details on the tightening torques.
NOTICE
• When installing parts on a carbon frame/handlebars, confirm the recommended
tightening torque with the carbon frame or part manufacturer in order to
prevent damage to the carbon material due to overtightening or inadequate
securing of the components due to insufficient tightening torque.
4.
Secure the rear of the battery mount.
Refer to Step 4 of "When the wiring to the battery is external".
Mounting bolt
Spacer
82