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  1. #1
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    Can I mix Shimano

    Can I use a Dura ace rear Derailleur with and Ultegra front Derailleur ...any performance issues?
    thanks,
    john

  2. #2
    Aut Vincere Aut Mori Snuffleupagus's Avatar
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    Nope, it'll work just fine. Lots of manufacturers do the same thing.

  3. #3
    Senior Member kerk's Avatar
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    That's how my Fastback Pro is set up. Nine speed rear and front triple, works great.
    2011 Raleigh International
    '73 World Voyageurs -
    Proud owner of all three colors made! Orange, Blue , Yellow .

  4. #4
    Senior Member Retro Grouch's Avatar
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    It's done all the time, John. The majority of new stock bikes come with rear derailleurs that are a group higher than the front derailleurs.

  5. #5
    Senior Member DieselDan's Avatar
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    Newer stuff, yes. Older Dura-Ace is incompatable with other Shimano bits.
    Bikes use brakes to stop.

    If your bike has breaks, don't ride it.

  6. #6
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    You also need to look at for 9 speed and 10 speed stuff as well. It might not be compatable. The only performance issues I can think of would be weight...

    There is very little wrong with Ultegra stuff...

  7. #7
    Senior Member DieselDan's Avatar
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    9 and 10 speed compatibilty is easy: just match the right brifter with the correct cogs on the cassette. 10 speed does need a spefic chain.
    Bikes use brakes to stop.

    If your bike has breaks, don't ride it.

  8. #8
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    Quote Originally Posted by DieselDan
    10 speed does need a spefic chain.
    10 speed needs a 10 speed chain. One day out of boredom I decided to try a 9sp chain on a 10sp bike, it didn't work.

    I mean, if one had no choice in the matter, it'd work. Let's say you're on a ride and somehow you break a chain, the closest bike shop doesn't have a 10sp chain, the 9sp will get you home, but you can say goodbye to smooth shifting, hell, even smooth riding.
    i ride bikes.

  9. #9
    Senior Member Nachoman's Avatar
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    Quote Originally Posted by fore
    10 speed needs a 10 speed chain. One day out of boredom I decided to try a 9sp chain on a 10sp bike, it didn't work.
    I'd have to be SOOO bored before I tried that little experiement.
    .
    .

    Two wheels good. Four wheels bad.

  10. #10
    Senior Member kjmillig's Avatar
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    Mixing Shimano:
    In a a large blender add the following:
    One part Dura Ace, one part Ultegra, one part ice, three parts Red Bull. Blend well until smooth. Serve immediately. May substitute the beverage of your choice for the Red Bull, but it does give you wings.

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