Skip to content

microSHIFT M21 Rear Derailleur 6/7 Speed Long Cage

RD-M21L Rear derailleur Product
microSHIFT M21 Rear Derailleur 6/7 Speed Long Cage
Published bicycles
129
Speeds
7, 6
Total capacity
43T
Largest cog
28-30T

Specifications

9 specifications

As listed in the manufacturer's catalog.

General

Speed
7-Speed, 6-Speed
Cage Length
Long Cage
Max Cog
28-30T
Min Cog
13-14T
Capacity
43T
Clutch
No
Cage Material
Steel
Outer Link Material
Composite
Compatibility
Shimano Mountain

How spec sheets write it

The most common ways bicycle spec sheets name it, by number of mentions.

  1. Micro Shift RD-M21L 44
  2. microSHIFT RD-M21L 24
  3. Shimano Tourney OR microSHIFT RD-M21L 22
  4. microSHIFT M21L 10
  5. Microshift RD-M21L 7spd 7
  6. Microshift RD-M21L 7 Speed 5
  7. Microshift RD M-21L 4
  8. Microshift RD-M21L, 6 speed. 4

Bicycles

129 bicycles

Published bicycles that use it, newest model years first.

Avanti Black Thunder LE

Cross-country

Avanti

Black Thunder LE

Model year: 2026

Avanti Model year: 2026

Mountain / Cross-country

  • Suspension: 80 mm
Avanti Shadow 20

General youth

Avanti

Shadow 20

Model year: 2026

Avanti Model year: 2026

Youth / General youth

  • Suspension: 40 mm
Avanti Shadow 24

General youth

Avanti

Shadow 24

Model year: 2026

Avanti Model year: 2026

Youth / General youth

  • Suspension: 50 mm
Avanti Spice 20

General youth

Avanti

Spice 20

Model year: 2026

Avanti Model year: 2026

Youth / General youth

  • Suspension: 40 mm
Avanti Spice 24

General youth

Avanti

Spice 24

Model year: 2026

Avanti Model year: 2026

Youth / General youth

  • Suspension: 50 mm
Cannondale Adventure Neo Allroad

E-bike, Hybrid

Cannondale

Adventure Neo Allroad

Model year: 2026

Cannondale Model year: 2026

E-bike, Urban / Hybrid

  • Suspension: Rigid
  • Wheel size: 650b
Cannondale Adventure Neo Allroad EQ

E-bike, Hybrid

Cannondale

Adventure Neo Allroad EQ

Model year: 2026

Cannondale Model year: 2026

E-bike, Urban / Hybrid

  • Suspension: Rigid
  • Wheel size: 650b
Avanti Black Thunder 1

Fitness

Avanti

Black Thunder 1

Model year: 2025

Avanti Model year: 2025

Urban / Fitness

  • Suspension: 80 mm
  • Wheel size: 650b
Avanti Black Thunder 24

General youth

Avanti

Black Thunder 24

Model year: 2025

Avanti Model year: 2025

Youth / General youth

  • Suspension: 50 mm
  • Wheel size: 24″

Showing 12 of 129 bicycles