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@Dylan
not really. only the miche (which is a bit shit) and the Phil and maybe one or 2 more are adjustable. and besides its not good to de-center your cranks for obvious reasons. although i spose you could, but its fucking annoying having one leg powering at a different angle to the other at the cranks. Wonky.
get the cranks you want, whatever they may be.
fit them to any old BB with a known length,
measure the chainline up front,
and measure the chainline at back,
work out the disparity between chainlines
then multiply this dissparity by 2 and add this number to the BB spindle length you have.
This is the length of the BB you need.
done