Can A 12 speed DUB 1x road crankset (Force 1) be converted to 11 speed by swapping the respective chainrings?
I have an 11 speed Force 1 rear mech that I want to use for the moment, but want to use DUB cranks
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I don't think you need to swap the chainring. From one of my favourite online resellers of bike parts I get the following description of a Sram NX crankset (MTB group):
This means they sell the same set for 11x and 12x.
If you want to change the chainring, I suppose you would need one with a 8-Bolt Direct Mount:
As suggested in the comments, third party manufacturers offer explicitely 11x compatible chainrings with Sram 8-bolt direct mount. Wolf Tooth calls this 'Drop-Stop B tooth profile'.