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Old 11-27-22, 04:01 PM
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jeff3069
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Originally Posted by Iride01
Depends on which specific GRX components you are talking about. If a GRX FDR, then I'd check the specs. But for a rear DR, probably not an issue. What matters for that crank is what the Chain Line of the rear is. And to a lesser extent that the front DR can work with the Chain Line that the crank is. Your DuraAce road crank is probably a 43.5mm chain line. So what is your rear wheel's cassette set up to handle? Probably about 43.5 on that old a frame. But I'm guessing.

You can check the compatibility between current Shimano components here....

https://productinfo.shimano.com/#/com

and find most everything else here...

https://si.shimano.com/en/#/

Thanks!!
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