M21 Long-Cage 6/7-Speed Rear Derailleur - Dropout Claw Hanger
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M21 Long-Cage 6/7-Speed Rear Derailleur - Dropout Claw Hanger
Tech Specs

Specifications are maintained on Pack4Back GearDB (community edits and revision history). Values may differ from the manufacturer or your unit—verify before buying.

BrandmicroSHIFT
Best UseMountain Biking
Derailleur TypeRear
Cage LengthLong Cage
Max Rear Cog Size30T
Speeds7-speed
Weight316 grams
Description

Boasting the same kinematics as more expensive derailleurs, the 6/7-speed microSHIFT M21 long-cage rear derailleur with claw hanger mount delivers responsive performance in an attainable package.

Features
  • Robust composite and steel construction improves durability and shifting response
  • Compatible with 6- and 7-speed mountain systems
  • Includes claw hanger dropout mount for use on bikes without standard rear derailleur hangers
  • Derailleur capacity is 43 teeth