Hi all. Happy New Year.
Probably a stupid question, but can you use a standard Shimano road chainset (e.g. 52/36 Ultegra) with the rest of the gearing being Shimano GRX di2? If I wanted to go for 52/36 up front and an 11-40 cassette at the back, would I need to swap in a standard di2 front derailleur (so ultegra di2 up front and grx di2 at the back)?
The GRX di2 front derailleur is apparently set 2.5mm further out than a standard Shimano derailleur, so I’m not sure if it’s compatible with an Ultegra chainset.