Build the deepest, most durable aerobic engine of your life with the top tier of the Endurance Builder series. Designed for experienced and elite amateur cyclists who can train 12-20 hours per week, this 8-week aerobic base plan turns high-volume Zone 2 work into genuine race-day durability, the ability to hold power and oxidise fat deep into your longest rides.
It's built on proven training science: a pyramidal-polarised intensity distribution (~80% endurance, ~20% tempo and sweet spot), progressive overload with a built-in recovery week, and a long-ride progression that climbs from 3:30 all the way to a 6-hour queen stage. Volume ramps from a 12-hour foundation to an 18- and 20-hour peak, then tapers into a Peak Aerobic Benchmark test so you can measure exactly how much your engine has grown versus week one.
Every session is fully structured for power, with precise %FTP targets and a complete description, what it does, how it should feel, pacing, success markers, the science, and the mental approach plus structured pre-activity notes and race-grade fuelling guidance (60-100g carbs/hour, scaled through the peak). Six quality days a week with no mandatory two-a-days keeps it 100% Zwift- and smart-trainer-friendly.
Includes weekly summary notes, a full onboarding guide, and structured workouts ready to sync to your head unit or trainer.
Ideal for: gran fondo, ultra-endurance, stage-race and time-trial riders building base or anyone chasing maximal aerobic development on a serious training budget.