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  1. #1
    Senior Member
    Join Date
    Sep 2006
    Location
    Layton, UT
    My Bikes
    2004 Giant OCR, 2002 Specialized Stumpjumper, 2008 Trek 6500 Disc
    Posts
    686
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    Upgrading from a double to a triple crank

    I broke my brifter so, I upgraded to a 105 ST-5500 and it is triple compatable. So, I was wondering what would it take to make the front a triple. From what I can tell I might need to change the following:

    Cranks
    BB?
    Front Derailurer
    Rear Derailurer?

    Is there anything else that would need to be changed. Our would the cost be halfway to a new bike?

    Currently I have the following:

    Ultegra derailurers
    Ultegra Cranks
    Ultegra Hubs
    105 brakes
    Tiagra brifters.

    Any help would be appreciated.

  2. #2
    Senior Member
    Join Date
    Feb 2005
    Location
    Oklahoma
    My Bikes
    Trek 5500, Colnago C-50
    Posts
    9,016
    Mentioned
    2 Post(s)
    Tagged
    0 Thread(s)
    Triple crankset with compatible triple bottom bracket, both derailleurs.

    Al

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