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I’m using di2 so its sounding like grx cranks are an expensive upgrade despite the cranks being pretty cheap
atz-
Miche Graff are heavy but are 24mm spindle and solve the chainline problem.
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I use GRX cranks with a standard 6870 mech. Works fine although it’s at the limit of its adjustment.
LeBlaireau
grams
Yes indeed. The new GRX cranks have 110 BCD for the outer ring and 80 BCD for the inner ring.
My advice if you want ultra-low gearing on 2x is to buy a GRX crankset and a GRX front derailleur. You need to get the derailleur too because the chain-line for GRX is 2.5mm outboard.