Shimano GRX REAR DERAILLEUR 10s
Rear Derailleur
Specifications
- Manufacturer
- Shimano
- Name
- GRX REAR DERAILLEUR 10s
- Series
- RX400
- MPN
- RD-RX400
- Groupset
- GRX
- Rear Speeds
- 10
- Drivetrain Brand
- Shimano
- Shifting Type
- Cable
- Max Cog (T)
- 36[1]
- Chain Standard
- Shimano HG (Hyperglide)[1]
- Weight (g)
- 303
- Sources
- [1] bike.shimano.com, checked 29 Sep 2026: Max Cog (T), Chain Standard
Compatibility
Shimano GRX REAR DERAILLEUR 10s is a Shimano rear derailleur. It is a 10-speed component. It uses Cable shifting. Everything listed below was matched on a specification we hold for both parts: the interface each pairing actually depends on, such as freehub body, speed count, actuation or mounting standard. Where we could not verify that interface, the part is left out rather than assumed to fit.
Cassettes for this derailleur3
Shares a standardShimano
HG CASSETTE 10s (CS-HG50-10)
- Both are 10-speed
- Both are Shimano drivetrain parts
Shares a standardShimano
HG CASSETTE 10s (CS-HG500-10)
- Both are 10-speed
- Both are Shimano drivetrain parts
Shares a standardShimano
LINKGLIDE CASSETTE 10s (CS-LG300-10)
- Both are 10-speed
- Both are Shimano drivetrain parts
Shifters that drive this derailleur6
RecommendedShimano
GRX DUAL CONTROL LEVER 10s
- Both are 10-speed
- Both use cable actuation
Mechanically compatibleShimano
TIAGRA DUAL CONTROL LEVER 10s
- Both are 10-speed
- Both use cable actuation
Mechanically compatibleShimano
TIAGRA HYDRAULIC DISC BRAKE DUAL CONTROL LEVER 10s
- Both are 10-speed
- Both use cable actuation
Mechanically compatibleShimano
TIAGRA HYDRAULIC DISC BRAKE DUAL CONTROL LEVER 10s FOR SMALL HANDS
- Both are 10-speed
- Both use cable actuation
Mechanically compatibleShimano
TIAGRA SHIFT LEVER FLAT BAR ROAD 2X10s
- Both are 10-speed
- Both use cable actuation
Mechanically compatibleShimano
TIAGRA SHIFT LEVER FLAT BAR ROAD 3X10s
- Both are 10-speed
- Both use cable actuation
Chains for this derailleur12
Shares a standardShimano
CN-HG54 DEORE MTB CHAIN 10s
- Both are 10-speed
Shares a standardShimano
CN-HG95 HG-X CHAIN 10s
- Both are 10-speed
Shares a standardKMC
DLC 10
- Both are 10-speed
Shares a standardKMC
e10
- Both are 10-speed
Shares a standardFSA
K-FORCE LIGHT 10 SPEED CHAIN
- Both are 10-speed
Shares a standardSRAM
PC-1031 Chain
- Both are 10-speed
Shares a standardSRAM
PC-1051 Chain
- Both are 10-speed
Shares a standardSRAM
PC-1071 Chain
- Both are 10-speed
Shares a standardSRAM
PC-1091R Chain
- Both are 10-speed
Shares a standardFSA
Team Issue Chain
- Both are 10-speed
Shares a standardKMC
X10
- Both are 10-speed
Shares a standardKMC
X10SL
- Both are 10-speed
Frequently Asked Questions
What fits Shimano GRX REAR DERAILLEUR 10s?
On this page we list cassettes for this derailleur, shifters that drive this derailleur, chains for this derailleur. Each listing was matched on a specification we hold for both parts; anything we could not verify is omitted rather than assumed to fit.
Can I use a higher or lower speed chain with Shimano GRX REAR DERAILLEUR 10s?
No. Shimano GRX REAR DERAILLEUR 10s is a 10-speed component and needs a 10-speed chain. Chains for different speed counts have different external widths and inner-plate profiles, which causes poor shifting or interference with the neighbouring sprockets.
Does Shimano GRX REAR DERAILLEUR 10s work with electronic shifting like Di2 or AXS?
No. Shimano GRX REAR DERAILLEUR 10s is mechanical, cable-actuated. Electronic groups use internal motors and proprietary signalling, so there is no mechanical or electrical path between the two.