Is it?

Sometimes I get the feeling that if I pushed it just a bit harder for a bit longer that my speed might hop up. In my neighborhood we have endless rollers. It seems like if I get more aggressive charging down the hills, instead of coasting, I carry more momentum up the next hill, I go faster and it gets easier.

So, is there such a thing as "threshold" speed? My "dreaded average fake speed" has gone from 11.5 MPH to around 14 MPH over just a few months, but that might have more to do with finding my recumbent legs than any true major improvement.