Cranks is cranks really. If you have an unshagged 10sp crank there is no need to swap as 11sp run on 10speed chainrings - assuming 1x.
Only proviso to that is I haven't a clue how the spacer required for Boost fits/works - no do I ever intend to find out.
Whole point of Boost is to get the flanges further apart. Fnar.
If you use spacers and endcaps you're Doing It Wrong.
@AdsH started
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Cranks is cranks really. If you have an unshagged 10sp crank there is no need to swap as 11sp run on 10speed chainrings - assuming 1x.
Only proviso to that is I haven't a clue how the spacer required for Boost fits/works - no do I ever intend to find out.