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Bottom brackets(1 post)

Bottom bracketsjoshxcski
Jun 26, 2001 2:11 PM
I am trying to build up a cannondale caad 4 R4000 frame. I have two questions, If i am putting an ultegra 6500 double crank on it what size BB do I need? 68x109.5? and what is the advantage to a triple crank??