Originally Posted by
MetalPedaler
39 seems to be some sort of sweet spot! As a weak, new rider, I thought 39 from a triple was going to be a problem- but on my first ride on the standard, I quickly fell in love with the 39.
That's probably because the 39 isn't any different from the middle ring of your old triple. The most common middle rings on triples these days are 39 and 42.