105 REAR DERAILLEUR 12s

Specifications

Manufacturer
Shimano
Name
105 REAR DERAILLEUR 12s
Series
R7100
MPN
RD-R7100
Shifting Type
Cable
Slot consumption
All
Slots
Rear Derailleur
Weight (g)
249
Front Speeds
2
Groupset
105
Drivetrain Brand
Shimano
Rear Speeds
12

Shimano 105 REAR DERAILLEUR 12s

Rear Derailleur

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Compatibility

This Shimano 105 REAR DERAILLEUR 12s is a Shimano Road rear derailleur. It requires a 12-speed drivetrain and compatible components. It is designed for cable shifting systems. For best performance, use with other R7100 components, though it is mechanically compatible with the parts listed below.

Compatible Shifters20

105 DUAL CONTROL LEVER 2X12s (Left)Recommended

Shimano

105 DUAL CONTROL LEVER 2X12s (Left)

  • Matches required 12-speed standard
  • Uses cable shifting type
105 DUAL CONTROL LEVER 2X12s (Right)Recommended

Shimano

105 DUAL CONTROL LEVER 2X12s (Right)

  • Matches required 12-speed standard
  • Uses cable shifting type
ALFINE HYDRAULIC DISC BRAKE LEVER I-SPEC B CLAMP BANDCompatible

Shimano

ALFINE HYDRAULIC DISC BRAKE LEVER I-SPEC B CLAMP BAND

  • Uses cable shifting type
Apex Shift-Brake LeverCompatible

SRAM

Apex Shift-Brake Lever

  • Matches required 12-speed standard
  • Uses cable shifting type
ASSIST SWITCHCompatible

Shimano

ASSIST SWITCH

  • Uses cable shifting type
AX Shift Lever (SL-A1206-R)Compatible

LTWOO

AX Shift Lever (SL-A1206-R)

  • Matches required 12-speed standard
  • Uses cable shifting type
AX Shift Lever (SL-A1216-R)Compatible

LTWOO

AX Shift Lever (SL-A1216-R)

  • Matches required 12-speed standard
  • Uses cable shifting type
BRAKE LEVER I-SPEC EV CLAMP BANDCompatible

Shimano

BRAKE LEVER I-SPEC EV CLAMP BAND

  • Uses cable shifting type
BRAKE LEVER I-SPEC II CLAMP BANDCompatible

Shimano

BRAKE LEVER I-SPEC II CLAMP BAND

CLARIS BRAKE LEVERCompatible

Shimano

CLARIS BRAKE LEVER

  • Uses cable shifting type
CUES HYDRAULIC BRAKE LEVER FOR SINGLECompatible

Shimano

CUES HYDRAULIC BRAKE LEVER FOR SINGLE

  • Uses cable shifting type
CUES HYDRAULIC DISC BRAKE LEVER I-SPEC II CLAMP BANDCompatible

Shimano

CUES HYDRAULIC DISC BRAKE LEVER I-SPEC II CLAMP BAND

  • Uses cable shifting type
CUES HYDRAULIC DUAL CONTROL LEVER FOR DOUBLECompatible

Shimano

CUES HYDRAULIC DUAL CONTROL LEVER FOR DOUBLE

  • Uses cable shifting type
CUES MECHANICAL DUAL CONTROL LEVER FOR DOUBLECompatible

Shimano

CUES MECHANICAL DUAL CONTROL LEVER FOR DOUBLE

  • Uses cable shifting type
DEORE BRAKE LEVER I-SPEC EVCompatible

Shimano

DEORE BRAKE LEVER I-SPEC EV

  • Uses cable shifting type
DEORE XT 3-FINGER HYDRAULIC DISC BRAKE LEVERCompatible

Shimano

DEORE XT 3-FINGER HYDRAULIC DISC BRAKE LEVER

  • Uses cable shifting type
DEORE XT BRAKE LEVERCompatible

Shimano

DEORE XT BRAKE LEVER

  • Uses cable shifting type
DEORE XT BRAKE LEVER I-SPEC EV CLAMP BANDCompatible

Shimano

DEORE XT BRAKE LEVER I-SPEC EV CLAMP BAND

  • Uses cable shifting type
DEORE XT SHIFT LEVER LEFT 2X12sCompatible

Shimano

DEORE XT SHIFT LEVER LEFT 2X12s

  • Matches required 12-speed standard
  • Uses cable shifting type
DEORE XT SHIFT LEVER LEFT I-SPEC EV 2X12sCompatible

Shimano

DEORE XT SHIFT LEVER LEFT I-SPEC EV 2X12s

  • Matches required 12-speed standard
  • Uses cable shifting type

Compatible Cassettes20

105 HG CASSETTE 12sRecommended

Shimano

105 HG CASSETTE 12s

  • Matches required 12-speed standard
ALFINE SINGLE SPROCKETCompatible

Shimano

ALFINE SINGLE SPROCKET

DEORE HYPERGLIDE+ CASSETTE 12sCompatible

Shimano

DEORE HYPERGLIDE+ CASSETTE 12s

  • Matches required 12-speed standard
  • Uses shimano hg plus standard
DEORE XT HYPERGLIDE+ CASSETTE 12s M8100Compatible

Shimano

DEORE XT HYPERGLIDE+ CASSETTE 12s M8100

  • Matches required 12-speed standard
  • Uses shimano hg plus standard
DEORE XT HYPERGLIDE+ CASSETTE 12s M8200Compatible

Shimano

DEORE XT HYPERGLIDE+ CASSETTE 12s M8200

  • Matches required 12-speed standard
  • Uses shimano hg plus standard
DURA-ACE HYPERGLIDE+ CASSETTE 12s Compatible

Shimano

DURA-ACE HYPERGLIDE+ CASSETTE 12s

  • Matches required 12-speed standard
  • Uses shimano hg plus standard
Force XG-1270 Cassette (CS-XG-1270-D1)Compatible

SRAM

Force XG-1270 Cassette (CS-XG-1270-D1)

  • Matches required 12-speed standard
  • Uses sram flattop standard
Force XG-1270 Cassette (CS-XG-1270-E1)Compatible

SRAM

Force XG-1270 Cassette (CS-XG-1270-E1)

  • Matches required 12-speed standard
  • Uses sram flattop standard
HG CASSETTE 12sCompatible

Shimano

HG CASSETTE 12s

  • Matches required 12-speed standard
  • Uses shimano hg standard
PG-1210 Eagle CassetteCompatible

SRAM

PG-1210 Eagle Cassette

  • Matches required 12-speed standard
  • Uses sram eagle standard
PG-1230 Eagle CassetteCompatible

SRAM

PG-1230 Eagle Cassette

  • Matches required 12-speed standard
  • Uses sram eagle standard
RED XG-1290 CassetteCompatible

SRAM

RED XG-1290 Cassette

  • Matches required 12-speed standard
  • Uses sram flattop standard
Rival XG-1250 CassetteCompatible

SRAM

Rival XG-1250 Cassette

  • Matches required 12-speed standard
  • Uses sram flattop standard
SLX HYPERGLIDE+ CASSETTE 12s Compatible

Shimano

SLX HYPERGLIDE+ CASSETTE 12s

  • Matches required 12-speed standard
  • Uses shimano hg plus standard
ULTEGRA HYPERGLIDE+ CASSETTE 12s (CS-R8100-12)Compatible

Shimano

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

  • Matches required 12-speed standard
  • Uses shimano hg plus standard
ULTEGRA HYPERGLIDE+ CASSETTE 12s (CS-R8101-12)Compatible

Shimano

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

  • Matches required 12-speed standard
  • Uses shimano hg plus standard
XG-1275 Eagle Cassette (CS-XG-1275-B1)Compatible

SRAM

XG-1275 Eagle Cassette (CS-XG-1275-B1)

  • Matches required 12-speed standard
  • Uses sram eagle standard
XG-1275 Eagle Cassette (CS-XG-1275-C1)Compatible

SRAM

XG-1275 Eagle Cassette (CS-XG-1275-C1)

  • Matches required 12-speed standard
  • Uses sram eagle standard
XG-1295 Eagle Cassette (CS-XG-1295-A3)Compatible

SRAM

XG-1295 Eagle Cassette (CS-XG-1295-A3)

  • Matches required 12-speed standard
  • Uses sram eagle standard
XG-1295 Eagle Cassette (CS-XG-1295-B1)Compatible

SRAM

XG-1295 Eagle Cassette (CS-XG-1295-B1)

  • Matches required 12-speed standard
  • Uses sram eagle standard

Compatible Cranksets20

105 CRANKSET 2X12sRecommended

Shimano

105 CRANKSET 2X12s

  • Matches required 12-speed standard
CRANKSET 2X12sCompatible

Shimano

CRANKSET 2X12s

  • Matches required 12-speed standard
  • Uses shimano hg standard
CRANKSET FOR 135/142 MM O.L.D. FRAMES 2X12sCompatible

Shimano

CRANKSET FOR 135/142 MM O.L.D. FRAMES 2X12s

  • Matches required 12-speed standard
  • Uses shimano hg standard
CRANKSET FOR 148 MM O.L.D. FRAMES 2X12sCompatible

Shimano

CRANKSET FOR 148 MM O.L.D. FRAMES 2X12s

  • Matches required 12-speed standard
  • Uses shimano hg standard
DEORE CRANKSET FOR 157 MM O.L.D. FRAMES 1X12sCompatible

Shimano

DEORE CRANKSET FOR 157 MM O.L.D. FRAMES 1X12s

  • Matches required 12-speed standard
  • Uses shimano hg plus standard
DEORE XT CRANKSET 48.8 MM CHAIN LINE 2X12sCompatible

Shimano

DEORE XT CRANKSET 48.8 MM CHAIN LINE 2X12s

  • Matches required 12-speed standard
  • Uses shimano hg plus standard
DEORE XT CRANKSET 51.8 MM CHAIN LINE 2X12sCompatible

Shimano

DEORE XT CRANKSET 51.8 MM CHAIN LINE 2X12s

  • Matches required 12-speed standard
  • Uses shimano hg plus standard
DEORE XT E-BIKE HOLLOWTECH CRANK ARM SET M8000Compatible

Shimano

DEORE XT E-BIKE HOLLOWTECH CRANK ARM SET M8000

  • Uses shimano hg standard
DEORE XT E-BIKE HOLLOWTECH CRANK ARM SET M8100Compatible

Shimano

DEORE XT E-BIKE HOLLOWTECH CRANK ARM SET M8100

  • Uses shimano hg plus standard
DURA-ACE CRANKSET 2X12sCompatible

Shimano

DURA-ACE CRANKSET 2X12s

  • Matches required 12-speed standard
DURA-ACE DUAL-SIDED POWER METER CRANKSET 2X12sCompatible

Shimano

DURA-ACE DUAL-SIDED POWER METER CRANKSET 2X12s

  • Matches required 12-speed standard
E-BIKE CRANK ARM SET (FC-E5000)Compatible

Shimano

E-BIKE CRANK ARM SET (FC-E5000)

  • Uses shimano hg standard
E-BIKE CRANK ARM SET (FC-EM600)Compatible

Shimano

E-BIKE CRANK ARM SET (FC-EM600)

  • Uses shimano hg standard
E-BIKE CRANK ARM SET (FC-EN500)Compatible

Shimano

E-BIKE CRANK ARM SET (FC-EN500)

  • Uses shimano hg standard
Eagle 70 Transmission E-MTB Crank AssemblyCompatible

SRAM

Eagle 70 Transmission E-MTB Crank Assembly

Eagle 90 Transmission E-MTB Crank AssemblyCompatible

SRAM

Eagle 90 Transmission E-MTB Crank Assembly

Eagle S100 Crank AssemblyCompatible

SRAM

Eagle S100 Crank Assembly

Force 43/30T Wide CranksetCompatible

SRAM

Force 43/30T Wide Crankset

  • Matches required 12-speed standard
Force AXS Power MeterCompatible

SRAM

Force AXS Power Meter

  • Matches required 12-speed standard
Force AXS Power Meter CranksetCompatible

SRAM

Force AXS Power Meter Crankset

  • Matches required 12-speed standard

Compatible Chains20

12s PowerLockCompatible

SRAM

12s PowerLock

  • Matches required 12-speed standard
  • Uses sram flattop standard
ALFINE DOUBLE PULLEY CHAIN TENSIONERCompatible

Shimano

ALFINE DOUBLE PULLEY CHAIN TENSIONER

ALFINE SINGLE FIXED PULLEY CHAIN TENSIONERCompatible

Shimano

ALFINE SINGLE FIXED PULLEY CHAIN TENSIONER

Apex ChainCompatible

SRAM

Apex Chain

  • Matches required 12-speed standard
  • Uses sram flattop standard
CHAIN DEVICE 11/12sCompatible

Shimano

CHAIN DEVICE 11/12s

  • Matches required 12-speed standard
  • Uses shimano hg standard
CHAIN DEVICE D-TYPE MOUNTCompatible

Shimano

CHAIN DEVICE D-TYPE MOUNT

  • Uses shimano hg standard
CHAIN DEVICE E-TYPE MOUNTCompatible

Shimano

CHAIN DEVICE E-TYPE MOUNT

  • Uses shimano hg standard
CHAIN DEVICE ISCG05 MOUNTCompatible

Shimano

CHAIN DEVICE ISCG05 MOUNT

  • Uses shimano hg standard
CN-M6100 HYPERGLIDE+ CHAIN 12sCompatible

Shimano

CN-M6100 HYPERGLIDE+ CHAIN 12s

  • Matches required 12-speed standard
  • Uses shimano hg plus standard
CN-M7100 HYPERGLIDE+ CHAIN 12sCompatible

Shimano

CN-M7100 HYPERGLIDE+ CHAIN 12s

  • Matches required 12-speed standard
  • Uses shimano hg plus standard
CN-M8100 HYPERGLIDE+ CHAIN 12sCompatible

Shimano

CN-M8100 HYPERGLIDE+ CHAIN 12s

  • Matches required 12-speed standard
  • Uses shimano hg plus standard
CN-M9100 HYPERGLIDE+ CHAIN 12sCompatible

Shimano

CN-M9100 HYPERGLIDE+ CHAIN 12s

  • Matches required 12-speed standard
  • Uses shimano hg plus standard
Eagle 70 Transmission Flattop ChainCompatible

SRAM

Eagle 70 Transmission Flattop Chain

  • Matches required 12-speed standard
  • Uses sram eagle standard
Eagle PowerLockCompatible

SRAM

Eagle PowerLock

  • Matches required 12-speed standard
  • Uses sram eagle standard
Eagle S100 ChainCompatible

SRAM

Eagle S100 Chain

  • Matches required 12-speed standard
  • Uses sram eagle standard
Eagle S200 ChainCompatible

SRAM

Eagle S200 Chain

  • Matches required 12-speed standard
  • Uses sram eagle standard
Eagle S500 ChainCompatible

SRAM

Eagle S500 Chain

  • Matches required 12-speed standard
  • Uses sram eagle standard
Eagle Transmission PowerLockCompatible

SRAM

Eagle Transmission PowerLock

  • Matches required 12-speed standard
  • Uses sram eagle standard
Force Chain (CN-FRC-D1)Compatible

SRAM

Force Chain (CN-FRC-D1)

  • Matches required 12-speed standard
  • Uses sram flattop standard
Force Chain (CN-FRC-E1)Compatible

SRAM

Force Chain (CN-FRC-E1)

  • Matches required 12-speed standard
  • Uses sram flattop standard

Frequently Asked Questions

What fits with Shimano 105 REAR DERAILLEUR 12s?

Shimano 105 REAR DERAILLEUR 12s is compatible with shifters, cassettes, cranksets, chains that match its technical standards. Most importantly, it requires matching 12-speed components.

Can I use a higher or lower speed chain with Shimano 105 REAR DERAILLEUR 12s?

No, Shimano 105 REAR DERAILLEUR 12s requires a 12-speed chain. Chains for different speeds have different external widths and internal profiles, which will cause poor shifting or mechanical interference.

Does this Shimano 105 REAR DERAILLEUR 12s work with electronic shifting like Di2 or AXS?

No, this is a mechanical cable-actuated component. Electronic systems use internal motors and proprietary signals that are physically and electrically incompatible with mechanical components.

Can I mix Shimano 105 REAR DERAILLEUR 12s with MTB components?

While some mechanical standards (like cassette spacing at certain speeds) may overlap, Shimano 105 REAR DERAILLEUR 12s is optimized for Road use. Mixing with MTB parts often fails due to differing pull ratios and chainlines.