Shimano Alivio 9-Speed Mountain Bicycle Rear Derailleur – RD-M4000 – ERDM4000SGS

This post contains affiliate links. As an Amazon Associate I earn from qualifying purchases Shimano Alivio RD-M4000 Rear DerailleursResin plate body and carbon fiber reinforced plastic outer link for reduced weightLow profile “Shadow” design reduces exposure to crash damageItem SpecificationsRear Derailleur Mount TypeShimano Rear Direct MountDrivetrain Speeds9Cage LengthLongChain Wrap Capacity (teeth)45Largest Cog36Rear Der/Shifter CompatibilityShimano MountainRear

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Shimano Alivio RD-M4000 Rear DerailleursResin plate body and carbon fiber reinforced plastic outer link for reduced weightLow profile “Shadow” design reduces exposure to crash damageItem SpecificationsRear Derailleur Mount TypeShimano Rear Direct MountDrivetrain Speeds9Cage LengthLongChain Wrap Capacity (teeth)45Largest Cog36Rear Der/Shifter CompatibilityShimano MountainRear Derailleur Mount Type10x1 StandardColorGray