Shimano GRX Rear Derailleur RDRX820SET 12-speed

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Shimano GRX Rear Derailleur RDRX820SET 12-speed

SKU Description

  • ・Silent and secure rear shifting on rough terrain
  •  »Adjustable chain stabilizer prevents chain slap and drops
  •  »SHIMANO SHADOW RD+
  • ・Smooth and reliable shifting on mixed surfaces
  •  »ON/OFF stabilizer switch matches terrain
  • ・Maximum front chainring difference: 17T
  • ・Top sprocket: Max. 11T/Min. 11T
  • ・Low sprocket: Max. 36T/Min. 34T
  • ・Total capacity: 42T