>>1848058for 1x, I recently did Shimano SLX with direct mounting 520g, some chink alloy 42t ring 100g, and XT bottom bracket 70g.
that's under 690g crank+ring+bb for 120 euros new, pretty reasonable if you ask me, and probably close to 50-100g lighter than what a 90s XTR would be with 1x. add like 30 euros if you don't like the chink chainrings.