Every ride you've ever done has a price.
Your head unit already knows it. Most riders never look. It's called TSS, and it is the single number coaching science is built on.
The Currency of Training
TSS, Fitness, Fatigue and Form. The four numbers that make a coach's decision possible, and why going into the red is the point.
Your Body Files a Report Every Morning
TSS measures the dose, not the absorption. HRV, resting heart rate and sleep are how the body reports back, and why a raw number means nothing.
You Don't Have One Engine. You Have Six.
Recovery to sprint: what each system runs on, how long it takes to build, and why your body doesn't care whether the stimulus came from a trainer or a 14% ramp.
Same Ride. Different Impact.
Relative Load: every ride is a dose, and FORM sizes it against your own Fitness. Why the ride that flattened you in March is a normal Tuesday by July.
Every Ride Is More Than Hard or Easy.
Feeling isn't fact. Training Impact tells you what a ride actually hit and how hard, so you know instead of guess.
Mostly Easy. Sometimes Fierce.
Polarization. Most of your hours easy, a few of them very hard, almost none in between, and the research FORM's coaching is built on.
Recap · the Foundations together
The Foundations, put to work.
Six chapters in one place: the model behind them, and five habits that put them to use. Start here if you'd rather not read them all.
Read the recap →Four Kinds of Week. One Job Each.
Base, Build, Peak, Recovery. Three weeks up and one down, why the fitness lands in the rest, and how naming the week sets everything after it.
The Plan Is a Hypothesis
Compliance is not obedience. It's the gap between the session you planned and the dose you got, and what the coach does about it.
Carbohydrate Is a Rate, Not a Quantity
Grams per hour, not grams per ride. How fueling scales with intensity, why the long ride bonks at hour three, and what a plan looks like.
Ride the Course Before You Ride It
Course Coach turns a GPX file into a pacing plan: where to spend, where to save, and what your finish time actually depends on.