Shimano GRX Di2 REAR DERAILLEUR 1x12s RX820

Rear Derailleur

GRX Di2 REAR DERAILLEUR 1x12s RX820

Specifications

Manufacturer
Shimano
Name
GRX Di2 REAR DERAILLEUR 1x12s RX820
Series
RX820
MPN
RD-RX827-SGS
Groupset
GRX
Rear Speeds
12
Front Speeds
1
Drivetrain Brand
Shimano
Shifting Type
Electronic (Di2)
Electronic Shifting Family
Shimano Di2 Grx 12
Cage Length
Long
Description
-

Compatibility

Shimano GRX Di2 REAR DERAILLEUR 1x12s RX820 is a Shimano rear derailleur. It is a 12-speed component. It uses di2 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 this derailleur can wrap13

105 HG CASSETTE 12sMechanically compatible

Shimano

105 HG CASSETTE 12s

  • Both are 12-speed
  • Both are Shimano drivetrain parts
DEORE HYPERGLIDE+ CASSETTE 12sMechanically compatible

Shimano

DEORE HYPERGLIDE+ CASSETTE 12s

  • Both are 12-speed
  • Both are Shimano drivetrain parts
DEORE HYPERGLIDE+ CASSETTE 12sMechanically compatible

Shimano

DEORE HYPERGLIDE+ CASSETTE 12s

  • Both are 12-speed
  • Both are Shimano drivetrain parts
DEORE HYPERGLIDE+ CASSETTE 12sMechanically compatible

Shimano

DEORE HYPERGLIDE+ CASSETTE 12s

  • Both are 12-speed
  • Both are Shimano drivetrain parts
DEORE XT HYPERGLIDE+ CASSETTE 12s M8100Mechanically compatible

Shimano

DEORE XT HYPERGLIDE+ CASSETTE 12s M8100

  • Both are 12-speed
  • Both are Shimano drivetrain parts
DEORE XT HYPERGLIDE+ CASSETTE 12s M8200Mechanically compatible

Shimano

DEORE XT HYPERGLIDE+ CASSETTE 12s M8200

  • Both are 12-speed
  • Both are Shimano drivetrain parts
DURA-ACE HYPERGLIDE+ CASSETTE 12s Mechanically compatible

Shimano

DURA-ACE HYPERGLIDE+ CASSETTE 12s

  • Both are 12-speed
  • Both are Shimano drivetrain parts
HG CASSETTE 12sMechanically compatible

Shimano

HG CASSETTE 12s

  • Both are 12-speed
  • Both are Shimano drivetrain parts
SLX HYPERGLIDE+ CASSETTE 12s Mechanically compatible

Shimano

SLX HYPERGLIDE+ CASSETTE 12s

  • Both are 12-speed
  • Both are Shimano drivetrain parts
ULTEGRA HYPERGLIDE+ CASSETTE 12s (CS-R8100-12)Mechanically compatible

Shimano

ULTEGRA HYPERGLIDE+ CASSETTE 12s (CS-R8100-12)

  • Both are 12-speed
  • Both are Shimano drivetrain parts
ULTEGRA HYPERGLIDE+ CASSETTE 12s (CS-R8101-12)Mechanically compatible

Shimano

ULTEGRA HYPERGLIDE+ CASSETTE 12s (CS-R8101-12)

  • Both are 12-speed
  • Both are Shimano drivetrain parts
XTR HYPERGLIDE+ CASSETTE 12s M9100Mechanically compatible

Shimano

XTR HYPERGLIDE+ CASSETTE 12s M9100

  • Both are 12-speed
  • Both are Shimano drivetrain parts
XTR HYPERGLIDE+ CASSETTE 12s M9200Mechanically compatible

Shimano

XTR HYPERGLIDE+ CASSETTE 12s M9200

  • Both are 12-speed
  • Both are Shimano drivetrain parts

Chains for this derailleur20

Apex ChainMechanically compatible

SRAM

Apex Chain

  • Both are 12-speed
CN-M6100 HYPERGLIDE+ CHAIN 12sMechanically compatible

Shimano

CN-M6100 HYPERGLIDE+ CHAIN 12s

  • Both are 12-speed
CN-M7100 HYPERGLIDE+ CHAIN 12sMechanically compatible

Shimano

CN-M7100 HYPERGLIDE+ CHAIN 12s

  • Both are 12-speed
CN-M8100 HYPERGLIDE+ CHAIN 12sMechanically compatible

Shimano

CN-M8100 HYPERGLIDE+ CHAIN 12s

  • Both are 12-speed
CN-M9100 HYPERGLIDE+ CHAIN 12sMechanically compatible

Shimano

CN-M9100 HYPERGLIDE+ CHAIN 12s

  • Both are 12-speed
Eagle 70 Transmission Flattop ChainMechanically compatible

SRAM

Eagle 70 Transmission Flattop Chain

  • Both are 12-speed
Eagle S100 ChainMechanically compatible

SRAM

Eagle S100 Chain

  • Both are 12-speed
Eagle S200 ChainMechanically compatible

SRAM

Eagle S200 Chain

  • Both are 12-speed
Eagle S500 ChainMechanically compatible

SRAM

Eagle S500 Chain

  • Both are 12-speed
Force Chain (CN-FRC-D1)Mechanically compatible

SRAM

Force Chain (CN-FRC-D1)

  • Both are 12-speed
Force Chain (CN-FRC-E1)Mechanically compatible

SRAM

Force Chain (CN-FRC-E1)

  • Both are 12-speed
GX Eagle ChainMechanically compatible

SRAM

GX Eagle Chain

  • Both are 12-speed
GX Eagle Transmission Flattop ChainMechanically compatible

SRAM

GX Eagle Transmission Flattop Chain

  • Both are 12-speed
K-FORCE LIGHT MTB 12 SPEED CHAINMechanically compatible

FSA

K-FORCE LIGHT MTB 12 SPEED CHAIN

  • Both are 12-speed
NX Eagle ChainMechanically compatible

SRAM

NX Eagle Chain

  • Both are 12-speed
RED ChainMechanically compatible

SRAM

RED Chain

  • Both are 12-speed
Rival Chain (CN-RIV-D1)Mechanically compatible

SRAM

Rival Chain (CN-RIV-D1)

  • Both are 12-speed
Rival Chain (CN-RIV-E1)Mechanically compatible

SRAM

Rival Chain (CN-RIV-E1)

  • Both are 12-speed
X0 Eagle Transmission Flattop ChainMechanically compatible

SRAM

X0 Eagle Transmission Flattop Chain

  • Both are 12-speed
X01 Eagle ChainMechanically compatible

SRAM

X01 Eagle Chain

  • Both are 12-speed

Frequently Asked Questions

What fits Shimano GRX Di2 REAR DERAILLEUR 1x12s RX820?

On this page we list cassettes this derailleur can wrap, 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 Di2 REAR DERAILLEUR 1x12s RX820?

No. Shimano GRX Di2 REAR DERAILLEUR 1x12s RX820 is a 12-speed component and needs a 12-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.