Di2 GRX has been flawless for me.
The issue with grx is that the chainring is 40t minimum on 1by.
I'd run it with an ingrd crank probebrly. Or go sram wireless and get more range thay way
Ok not quite flawless. Haha. I found the chainline shit on the GRX crank with my frame that I went back to my ultegra one. Which I've 36 through to 46 already.
Got 38t on mine using aftermarket (Wolftooth).
Wolftooth and Specialites TA make a 38T. The Wolftooth one is ONLY £90
EDIT: Just asw this was a repost
@skinny started
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Di2 GRX has been flawless for me.