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Old 07-14-04, 06:36 PM   #1
gringorio
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switching dura ace crank arm for ultegra?

hi

is it possible to change out my ultegra crank arms for dura ace crank arms without having to modify or change anything like the bottom bracket spindle or other parts? thanks!
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Old 07-14-04, 06:53 PM   #2
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They were compatible til sometime in '03-'04 when the BB was 'integrated' and thus
made even more proprietary and incompatible. Octalink versions of DA were the previous standard. You should be able to find octalink DA arms with a bit of a search.
Also DA triples are a late octalink arm development. Unless you got them cheap it
would make little sense to change, and even cheap you gain nothing. Steve
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Old 07-14-04, 07:25 PM   #3
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thanks ... i have an older set of dura ace cranks (the octa link?) that look very similar to the ultegra (which now has a bent chain ring arm (see: Bustop Ride (Boulder) Danger Will Robinson!). the old DA is about 5 or more years old so it sounds like i can just swap them out... thanks!
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Old 12-10-13, 10:19 PM   #4
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Time to wake up an old thread. With the new stages power meter in mind, are ultegra and dura ace arms interchangeable? I have dura ace 7900 now and may buy a second bike with ultegra 6700.
When I want power on the "other" bike, I can just swap the arm.
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Old 12-10-13, 10:30 PM   #5
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Quote:
Originally Posted by ketsana View Post
Time to wake up an old thread. With the new stages power meter in mind, are ultegra and dura ace arms interchangeable? I have dura ace 7900 now and may buy a second bike with ultegra 6700.
When I want power on the "other" bike, I can just swap the arm.
Could've just started a new thread for this

But yes they are compatible.
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Old 12-10-13, 10:33 PM   #6
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Thanks!
I could not find this anywhere. This is great news for those who don't want to buy two crank based power meters.
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