Not sure why I have never cared or noticed much about gearings. 10000s of commuting miles in the last few years on multiple bikes and could not tell you what any of the gearings are other than a double or triple crank mated to 5,6,7 speed freewheels. Need to climb? Downshift, need to pick up the pace, upshift. Only real thing I aim for is keep chainline as straight as possible