The way I look at it is that everyone has got a power curve, which is related to their speed curve.
You start off riding at maybe 60% of threshold on day 1. Then that % falls each day you ride, until you are just bumping along at maybe 35-40%, and it doesn't really go any lower.
The model I have in my head is getting my threshold power higher at the start so that my whole decay curve, hence my power - and therefore speed - on every day, gets shifted up a few Watts / kmh.
The way I look at it is that everyone has got a power curve, which is related to their speed curve.
You start off riding at maybe 60% of threshold on day 1. Then that % falls each day you ride, until you are just bumping along at maybe 35-40%, and it doesn't really go any lower.
The model I have in my head is getting my threshold power higher at the start so that my whole decay curve, hence my power - and therefore speed - on every day, gets shifted up a few Watts / kmh.