Originally Posted by somnambulant

I keep going down in gear inches. I went from 46x16 to 48x18 and now I'm at 42x16. At 90rpm 46x16 is ~32.6kph and 42x16 is ~29.7kph, which isn't really that great of a difference in cruising speed. That's a 6.6 gear-inch difference. However I find the perceived effort at the same cadence is much lower on the 42x16, so that's the easy winner.