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Never try to reduce weight in groupset. 1x is heavier than 2x with cheaper cassettes.
Show your working.
andyp-
I don't know. Fight among yourselves.
https://ccache.cc/blogs/newsroom/2020-road-gravel-groupset-weight-comparison
https://www.mtbr.com/threads/1x-versus-2x-weight-comparisons.1016082/
https://www.pinkbike.com/u/P-D-X/blog/1x-vs-2xin-proper-detail.html
The only infographic I've seen showed the same gear range in 1x worked out heavier but that was ages ago.
hippy
My carbonda barely went over 8.5kg with guards. Everything was carbon with LB flyweight wheels.
Never try to reduce weight in groupset. 1x is heavier than 2x with cheaper cassettes. Smaller gears are lighter i.e instead of 50t and 11-46, 42t and 11-32. Wheels is where the best £:gram value lies. Maybe seatpost and stem if you go extralite/darimo etc. Never a carbon saddle; too stiff to sit on.