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left-side Ultegra power meter with right-side 105 crank

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left-side Ultegra power meter with right-side 105 crank

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Old 08-05-20, 08:54 AM
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jcjohnson19
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left-side Ultegra power meter with right-side 105 crank

Hey guys, I'm thinking about buying a Ultegra R8000 Single Leg Power Meter Crank Arm from a friend but I have a full 105 setup. Would it cause issues to have crankarms that are different models? Both crankarms are the same length.
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Old 08-05-20, 09:00 AM
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Crankycrank
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Should be OK. Measure the thickness of the cranks at the BB end as you may need to add spacers if the R8000 arm is not as wide.
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Old 08-05-20, 10:10 AM
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caloso
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All the Shimano crankarms are functionally the same. I put a Stages 105 crankarm on a Dura Ace 7800 crankset and it works perfectly. The only complaint is that the finish isn't as nice.
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Old 08-05-20, 01:21 PM
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I ran an old Ultegra 6700 10speed on the drive side and a Stages Ultegra 8000 11speed on the NDS.
The hollowtech II are interchangeable.

Nobody even noticed the color difference.

Barry

EDIT: Watch out for the old Octalink cranks. Those are a different fit.
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