Shimano GRX RX 815 Series Dealer's Manual page 3

Temporarily installing the front derailleur .........................................65
• When there is a mounting boss on the seat tube ................................................................ 65
• When there is no mounting boss on the seat tube .............................................................. 66
• Connecting the electric wire .................................................................................................. 69
Installing the rear derailleur ................................................................71
• Standard type ......................................................................................................................... 71
• Direct mount type .................................................................................................................. 73
• Connecting the electric wire .................................................................................................. 75
Installing the battery ...........................................................................76
• Installing the external battery ............................................................................................... 76
• Installing the built-in battery ................................................................................................ 84
Installing junction [B] ...........................................................................87
• External type ........................................................................................................................... 87
• Built-in type ............................................................................................................................ 90
Checking connections ..........................................................................93
Securing the front derailleur ...............................................................94
• Preparations ............................................................................................................................ 94
• Securing the front derailleur ................................................................................................. 96
Installing the disc brake rotor .............................................................99
Installing the brake caliper ..................................................................99
Installing the brake hose .....................................................................99
• Overview of the easy hose joint system ................................................................................ 99
• Checking the length of the hose ......................................................................................... 100
• Cutting the hose ................................................................................................................... 101
• Connecting the hose ............................................................................................................ 107
Securing the dual control lever .........................................................112
HOW TO OPERATE .................................................................113
Gear position control .........................................................................113
• Points to remember when shifting the front ..................................................................... 113
• Points to remember during rear gear shifting ................................................................... 114
ADJUSTMENT ........................................................................115
Installing the chain .............................................................................115
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