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Shimano GRX Di2 Rear Derailleur

Service Pages

Shimano Service Page


RX815 Series

Torque Values

Warning: Incorrect tightening of bicycle components can lead to damage, accident, injury, or even death. The accuracy of provided values is not guaranteed; always check directly with the manufacturer.
Bolt Name Tool Torque (Nm)
Pulley wheels 2.5 - 5
Plate axle 8.0 - 10
Chain stabilizer friction torque (RD-RX815) 3.1 - 5
Rear derailleur fixing screw 8.0 - 10
B-axle 2 (direct-mount type) 8.0 - 10
Plate unit cover screw 1.0 - 1.5
Plate stopper pin 1
Left plate friction torque (RD-RX817) 2.5 - 4


3 mm Hex Wrench

4 mm Hex Wrench

2 mm Hex Wrench

#2 Phillips screwdriver

T30 Torx Wrench

5 mm Hex Wrench


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