Originally Posted by
AngelGendy
I'm running a 14 now and have a choice of 165 and 171.5 cranks.
You are sort of confirming what I've written.
Every -1 tooth change of the cog is roughly (for conversation's sake) a +3 tooth change for the chainring. By going to a 40/12 from a 40/14, you are going to a 90" gear from a 77" gear.
You'll find out soon enough.