I have a 1072 Schwinn Speedster with a 3 speed sturmy archer. In the flats of the prairie state, I find I'm only using the lowest gear. And I have to mash that gear.
I was hoping to make one or more modifications with an eye to having more useful gears/and or being able to spin in at least one gear. The chain ring is 46 (maybe 44, I forget) and the rear cog is 18.
A concern is if I get a new one piece crank with less teeth, 1. It may not be compatible, and 2. I might over do it.