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Shimano GRX Di2 Dual Control Lever

Service Pages

Shimano Service Page


RX815 Series


8 mm Spanner

2.5 mm Hex 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.
Bolt Name Tool Torque (Nm)
Flare nut with flange 5.0 - 6
Clamp bolt 6.0 - 8
Bleed screw 0.5 - 0.7


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