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  1. #1
    mtbr member
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    New question here. Long Cage or Mid Cage Rear Derailleur

    Trying to figure out the plus and the minus of both types.

    I need a new rear for my Enduro SL (AM) bike. With three rings in front.

    Any insight would be great.

    Thank you

    Mike
    EndGam3

  2. #2
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    Note to self.
    Read Stickys Before Asking Qustions...
    EndGam3

  3. #3
    Rogue Warrior&Anarchist
    Reputation: mike_d_1583's Avatar
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    All depends on how your cassette is geared. Close ratio gearing just need mid-cage, wide range needs long-cage to reach all the gears.
    mountain biking is not a crime, so quit giving me dirty looks before I bunnyhop your car

  4. #4
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    Unless you plan to change chainrings or your cassette in the future, use the shortest cage with sufficient chain take-up capacity for your drivetrain.

    Shorter cages are marginally lighter, shift more responsively, and ride closer to the frame, somewhat reducing the chance of getting snagged. The drawbacks are more critical chain length calculations, and the inability to change to a wider range set up later on.

    I should note that the drawbacks of an overly long cage are subtle and incremental, while using a too short cage RD can cause catastrophic failure.
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    The key to solving any problem is to understand and address the underlying cause.

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