My bike is finally set up right! So it's time to tinker.
Bike: 2009 Downtube Mini with stock Sturmey-Archer 8sp IGH.
I've read in this thread that changing out my 25T rear sprocket for a 23T rear sprocket will let me go faster.
My usual commute is very flat. I use gears 4, 5,or 6 depending on the headwind and how tired I am. I am not yet strong enough to make much use of gears 7 or 8. Is there any point to changing out the sprocket, when I am not currently making use of the top 2 gears?