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Discussion Starter · #1 ·
I'm going to post this in the Giant forum as well in hopes of getting a straight answer.
I want to know if it is possible to convert a Giant Road OD setup to an OD2 setup with a simple change of headset and fork. I know the OD and OD2 top bearings have the same outside diameter so, they will fit in the frame but I don't know if the bottom bearings have the same outside diameter. Has anyone done this before? I will be taking possession of a 2012 Defy Composite 2. It is not the Advanced model which does use the OD2 headset and fork. My plans are put an Advanced all carbon fork on the regular composite frame. I already have a 1-1/4 stem to fit the oversized top steerer tube size.
I no longer have a local Giant dealer in my area as he went out of business.
 
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