jimboalee said:I'm starting to sweat because I have a feeling that they were 44T ring to 20T sprocket in those days and a 26" wheel size.
That would make it 43, 57 and 76" gears.
75 rpm for 12.5 mph in middle.
Those were the days of 'Grind, grind, grind'.
Nowadays, the ladies like lower gearing for a higher cadence.
I used to cruise comfortably in 3rd. I think the wheel was bigger than a 26". Sorry, I can't put you out of your misery as I don't have the bike at home any more. It's a Lady Diploma in Glacier Blue if you want to do some research.