Originally Posted by sykerocker

I've made a practice of putting a Shimano 23 tooth sprocket on every IGH roadster I've owned, from my Raleigh Tourist to my Twenty. I've found that swapping the 16 for the 23 effectively drop third gear to what used to be second, second down to roughly first, and first becomes something that can actually climb a couple of the hills in my neighborhood.

Doing this conversion on my '69 Sprite has me rarely using the left side shifter under drive.