Originally Posted by
SoSmellyAir
Why not just stay with a 46-36-24 triple then?
46/30 (16T difference) is within Shimano specifications, whereas 46/26 is not; why not go 46/30 with a bigger 11-40 or 11-42 cassette shifted by a GRX rear derailleur?
Because that's beyond the spec of the derailleur. Both of them.