microSHIFT M21 Rear Derailleur 6/7 Speed Long Cage (RD-M21L)

Rear Derailleur

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Specifications

Manufacturer
microSHIFT
Name
M21 Rear Derailleur 6/7 Speed Long Cage (RD-M21L)
MPN
RD-M21L
Rear Speeds
6, 7
Drivetrain Brand
Other
Shifting Type
Cable
Max Cog (T)
28
Cage Length
Long

Compatibility

microSHIFT M21 Rear Derailleur 6/7 Speed Long Cage (RD-M21L) is a microSHIFT rear derailleur. 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.

Shifters that drive this derailleur20

🚲Mechanically compatible

microSHIFT

Drop Bar Shifters 1x7 (SB-R370)

  • Both are 7-speed
  • Both use cable actuation
🚲Mechanically compatible

microSHIFT

Drop Bar Shifters 1x7 (SB-R470)

  • Both are 7-speed
  • Both use cable actuation
🚲Mechanically compatible

microSHIFT

Drop Bar Shifters 2x7 (SB-R372)

  • Both are 7-speed
  • Both use cable actuation
🚲Mechanically compatible

microSHIFT

Drop Bar Shifters 2x7 (SB-R472)

  • Both are 7-speed
  • Both use cable actuation
🚲Mechanically compatible

microSHIFT

Drop Bar Shifters 3x7 (SB-R373)

  • Both are 7-speed
  • Both use cable actuation
🚲Mechanically compatible

microSHIFT

Drop Bar Shifters 3x7 (SB-R473)

  • Both are 7-speed
  • Both use cable actuation
🚲Mechanically compatible

microSHIFT

Estes Light Action Twist Shifter (MS50-7R)

  • Both are 7-speed
  • Both use cable actuation
🚲Mechanically compatible

microSHIFT

Thumb Tap Shifters 3x6 - TS38

  • Both are 6-speed
  • Both use cable actuation
🚲Mechanically compatible

microSHIFT

Thumb Tap Shifters 3x7 - TS38

  • Both are 7-speed
  • Both use cable actuation
🚲Mechanically compatible

microSHIFT

Thumb Tap Shifters 3x7 - TS71

  • Both are 7-speed
  • Both use cable actuation
🚲Mechanically compatible

microSHIFT

Twist Shifter 1x7 Indicator (DS45-7R)

  • Both are 7-speed
  • Both use cable actuation
🚲Mechanically compatible

microSHIFT

Twist Shifters 3x6 (MS25-6)

  • Both are 6-speed
  • Both use cable actuation
🚲Mechanically compatible

microSHIFT

Twist Shifters 3x6 (MS29-6)

  • Both are 6-speed
  • Both use cable actuation
🚲Mechanically compatible

microSHIFT

Twist Shifters 3x6 Indicator (DS85-6)

  • Both are 6-speed
  • Both use cable actuation
🚲Mechanically compatible

microSHIFT

Twist Shifters 3x7 (MS25-7)

  • Both are 7-speed
  • Both use cable actuation
🚲Mechanically compatible

microSHIFT

Twist Shifters 3x7 (MS29-7)

  • Both are 7-speed
  • Both use cable actuation
🚲Mechanically compatible

microSHIFT

Twist Shifters 3x7 Indicator (DS85-7)

  • Both are 7-speed
  • Both use cable actuation
🚲Mechanically compatible

microSHIFT

Estes Thumb Tap Right Shifter 7 Speed Indicator (TS200-7R)

  • Both are 7-speed
  • Both use cable actuation
🚲Mechanically compatible

microSHIFT

Thumb Tap Shifters 3x7 - TS39

  • Both are 7-speed
  • Both use cable actuation
A2 Shift Lever (SL-A0716-R)Shares a standard

LTWOO

A2 Shift Lever (SL-A0716-R)

  • Both are 7-speed
  • Both use cable actuation

Frequently Asked Questions

What fits microSHIFT M21 Rear Derailleur 6/7 Speed Long Cage (RD-M21L)?

On this page we list chains for this derailleur, shifters that drive this derailleur, cassettes 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.

Does microSHIFT M21 Rear Derailleur 6/7 Speed Long Cage (RD-M21L) work with electronic shifting like Di2 or AXS?

No. microSHIFT M21 Rear Derailleur 6/7 Speed Long Cage (RD-M21L) is mechanical, cable-actuated. Electronic groups use internal motors and proprietary signalling, so there is no mechanical or electrical path between the two.