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Shimano GRX Di2 Rear Derailleur

Service Pages

Shimano Service Page

Manuals

RX815 Series

Tools

3 mm Hex Wrench

4 mm Hex Wrench

2 mm Hex Wrench

#2 Phillips screwdriver

T30 Torx Wrench

5 mm Hex Wrench

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.

Nm in lbs

Bolt Name	Torque (Nm)	Torque (in lbs)
Pulley wheels	2.5 - 5	44
Plate axle	8.0 - 10	89
Chain stabilizer friction torque (RD-RX815)	3.1 - 5	44
Rear derailleur fixing screw	8.0 - 10	89
B-axle 2 (direct-mount type)	8.0 - 10	89
Plate unit cover screw	1.0 - 1.5	13
Plate stopper pin	1	9
Left plate friction torque (RD-RX817)	2.5 - 4	35

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