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Acera RD-M3020-SGS Rear Derailleur - 7/8 Speed, Long Cage, Black

Acera RD-M3020-SGS Rear Derailleur - 7/8 Speed, Long Cage, Black - Main image
$20.5 $41 In stock

The Shimano Acera RD-M3020 rear derailleur features Double Servo technology to provide smooth, precise shifting and helps you ride challenging terrain with fewer interruptions.


  • Double Servo mechanism enables the rear derailleur to move in an optimum path
  • Versatile performance and wide compatibility
  • SGS Long cage