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  1. #1
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    8 speed with 7 speed derailleur

    Any problems using an 8 speed drive train with a 7 speed rear derailleur?

  2. #2
    Unique Vintage Steel cuda2k's Avatar
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    Quote Originally Posted by bigS
    Any problems using an 8 speed drive train with a 7 speed rear derailleur?
    Nope - Shimano SIS 6-8 don't care what they are being pulled by.

  3. #3
    Senior Member juicemouse's Avatar
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    Quote Originally Posted by bigS
    Any problems using an 8 speed drive train with a 7 speed rear derailleur?
    No problems unless you're mixing Dura-Ace with non-Dura-Ace.
    It is my belief that every person in this world has something to teach, and everything to learn.

    In memory of Jim Price (aka. sydney) ...

  4. #4
    Unique Vintage Steel cuda2k's Avatar
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    Quote Originally Posted by juicemouse
    No problems unless you're mixing Dura-Ace with non-Dura-Ace.
    An even better answer.

  5. #5
    I couldn't car less. jeff williams's Avatar
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    Don't mix Shimano with SRAM?
    If the cluster is the same range I'd think so.
    My Deore was designed to do both and I went 2T larger than max teeth low cog.

  6. #6
    me have long head tube TallRider's Avatar
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    You can mix any SRAM cassette with Shimano drivetrain. Some SRAM deraillers are designed specially to work with special SRAM shifters. (SRAM also makes Shimano-compatible deraillers and shifters) However, there's no difference in the cassettes, and Shimano cassettes will work fine with SRAM's special shifters and deraillers, too.

  7. #7
    I couldn't car less. jeff williams's Avatar
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    Quote Originally Posted by timcupery
    Some SRAM deraillers are designed specially to work with special SRAM shifters.
    1:1 actuation ratio?
    Shimano is 2:1?
    I thought Shimano shifters didn't pull enough cable to move SRAM derailers.
    Not something I've really looked into, I am likely to change the shifter and derailer to SRAM with the next cluster change rather than mix.

  8. #8
    me have long head tube TallRider's Avatar
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    Jeff: some SRAM deraillers are Shimano compatible. Not the 1:1 deraillers.

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