SHIMANO Deore M6100 12 Spd Derailleur

SHIMANO Deore M6100 12 Spd Derailleur

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The Shimano DEORE RD-M6100 1x12-speed rear derailleur for 10-51 cassette features an elegant yet aggressive angled design. The derailleurs feature bigger 13-tooth pulleys and include Shimano’s proven Shadow RD+ low profile technology.

Molded from the same DNA as XTR, DEORE XT and SLX, the new M6100 series delivers Shimano’s proven 12-speed technologies at DEORE level.


  • Shadow RD+ For optimal chain retention
  • RD-M6100-SGS  
    • 51T max cog size
    • Works with 12-speed 10-51 teeth cassettes
  • Pulley size with 13T increased for reduced friction


  • Use: MTB
  • Group: DEORE M6100
  • Model: RD-M6100
  • Mount: Direct Mount
  • Technology: Shadow RD+
  • Gradations: SGS-Type 1x12-speed (10-51 cassette)
  • Compatible chain: CN-M6100 12-speed
  • Max. teeth large sprocket: 51T
  • Min. teeth large sprocket: 45T
  • Max. teeth small sprocket: 10T
  • Min. teeth small sprocket: 10T
  • Max. Front Difference: 0T
  • Total Capacity: 41T
  • Weight: 319 grams


  • Type-SGS long