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Shimano GRX Rear Derailleur

Service Pages

Shimano Service Page


Rear Derailleur Rear Derailleur

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 screw 2.5 - 5
Plate axle 8.0 - 10
Cable fixing bolt 6.0 - 7
Frinction torque (RD-RX820, RD-RX810, RD-RX400) 3.0 - 4.9
Friction torque (RD-RX812) 2.6 - 4.2
Mounting screw 8.0 - 10
Bracket axle (direct mount type) 8.0 - 10
Plate unit cover screws 1.0 - 1.5
Plate stopper pin 1
Friction torque (RD-RX822) 4.4 - 5.4


3 mm Hex Wrench

4 mm Hex Wrench

2 mm Hex Wrench

#2 Phillips screwdriver

5 mm Hex Wrench

T27 Torx Wrench


SHIMANO GRX RD-RX810 FULL SERVICE | How to service Shimano GRX derailleur

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Dirty And Tired Derailleur Gets New Life In 3 Minutes. How I Clean Rear Mech After Long, Dusty Trips


Rusty after 2000 miles. Full guide to Shimano XT M8100 rear mech service.



Crankbrothers Multi Tool M 20 Bike Tool - MTB Multi-Tool Gold - 20 Bicycle Tools(20 in 1 Tool), Ergonomic and Lightweight

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Park Tool Unisex's CG-2.4 - Chain Gang Cleaning System Chaingang, Blue, one


Bike Pedal Wrench, Bicycle Pedal Removal Tool with Extra Long Handle for Efficient Repair of Road and Mountain Bikes


Bike Repair Tool Kit 7Pcs,Tool Zipper Pouch,3-in-1 Cassette Remover Wrench,Bike Chain Breaker,Hub Cone Wrenche,Bottom Bracket Remover,Freewheel Remover,Crank Puller Extractor,Spoke Wrench


Gorilla Force Ultra Strong Bike Tire Levers | 4 Pack | Lava Red


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4 in 1 Bicycle Bike Pedal Wrench Bicycle Pedal Removal Tool with 320mm Extra Long Handle Multifunctional 15mm 9/16in MTB Pedal Removal Wrench and 6-8-10mm Hexagon Hole for Biking Maintenance & Repair

$11.95 $12.95

Park Tool IB-2 I-Beam Mini Fold-up Hex/Screwdriver/Torx Set


Odoland Bike Repair Tool Kit, Bicycle Maintenance Tool Set with Multifunction Tool, Wrench and Tool Box, Perfect for Repair Tyres, Brakes, Lights, Chains, Pedal, Mountain Road Bike, 26 in 1


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