>>1564363>crank length affects the number of gear inches>having different amounts of gear inches with the same cranks results in the same gain ratio>using different wheel sizes with the same drivetrains results in equivalent gain ratiosWhatever it is you meant, it's wrong, and if what anon wanted was the same gain as 80 inches with 700c and 165 cranks but using 650c wheels then he needs a 49x15 drivetrain (assuming 25mm tires and the same 165mm cranks)