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Bicycle Mechanics Broken bottom bracket? Tacoed wheel? If you're having problems with your bicycle, or just need help fixing a flat, drop in here for the latest on bicycle mechanics & bicycle maintenance.

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Old 07-31-08, 10:42 AM   #1
gholt
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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.
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Old 07-31-08, 01:51 PM   #2
Al1943
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Triple crankset with compatible triple bottom bracket, both derailleurs.

Al
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