Shimano Acera RD-M3020-SGS Rear Derailleur - 7/8 Speed Long Cage Black MFPN=Y32203620 8mm rise 0 deg length

8mm rise 0 deg length 31mm color black

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5" inseam (size Medium)

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Shimano Acera RD-M3020-SGS Rear Derailleur - 7/8 Speed Long Cage Black MFPN=Y32203620 8mm rise 0 deg lengthShimano Acera RD M3020 SGS Rear Derailleur 7 8 Speed Long Cage Black. 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 TECH SPECS Cage Length Long Chain Wrap Capacity (teeth) 45 Color Black