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  1. #1
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    Sram XO type 2 Der tooth capacity question

    So I am having a little bit of trouble getting my XO type 2 rear der to shift properly. I want to make sure I have the right length. I have a medium cage derailleur with an 11-36 cassette and a 26-38 crankset. Should the medium der work?
    I am having a little bit of trouble getting the tension on the cable just right. Sounds like these are pretty chain length sensitive, so I will be checking that next.
    Thanks for any help.
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  2. #2
    dvn
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    According to United Bicycle Institute:

    Determine Maximum Chainring Difference by subracting the number of teeth in the smallest chainring from the number of teeth in the largest chainring

    Determine Maximum Cassette Cog Difference by subtracting the number of teeth on the smallest cassette cog from the number of teeth on the largest cassette cog

    Determine Total Drivetrain Capacity by adding Maximum Chainring Difference to the Maximum Cassette Cog Difference

    Record the Maximum Cassette Cog (the number of teeth on the largest Cassette Cog)

    For Shimano:

    SS - Short Cage Road Double - Maximum Cassette Cog is 27 and Total Capacity is 29

    GS - Medium Cage MTB/Road Triple - Maximum Cassette Cog is 34(MTB)/27(Road) and Total Capacity is 33(MTB)/37(Road)

    SGS - Long MTB - Maximum Cassette Cog is 34 and Total Capacity is 45

    For SRAM:

    Short - Maximum Cassette Cog is 34(MTB)/28(Road) and Total Capacity is 32(MTB)/31(Road)

    Medium - Maximum Cassette Cog is 34 and Total Capacity is 37

    Long - Maximum Cassette Cog is 34 and Total Capacity is 45

    For Campagnolo:

    Short - Maximum Cassette Cog is 26 and Total Capacity is 27

    Medium - Maximum Cassette Cog is 29 and Total Capacity is 36

    Long - Maximum Cassette Cog is 29 and Total Capacity is 39
    "Either way it doesn't really matter, I just got back from a bike ride."
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