Originally Posted by
squirtdad
46/30 is logical because it give lower range and keeps with the current shimano rear derailler spec no more than 16to difference in crank rings
They did this with their GRX now (46/30), but their old fashioned CX groupsets were FC 46/36. The 46/30 would require PCD not really offered for road doubles.
But then before GRX, people were not riding gravel on road groupsets and cranksets?