Polarized Cycling Training

The 80/20 intensity model — 80% easy, 20% hard. AI-generated periodized plan for maximum adaptation.

Build a Polarized Plan

Example Training Plans

See the periodized structure your AI coach builds — phases, weekly volume, and key workouts tailored to your goal.

12-Week Polarized Plan

Maximize aerobic gains with the 80/20 intensity model

12 weeks8-12h/week

Base8-10h/wk

High-volume Zone 2 with 1 hard session per week

4× Zone 1-2 easy rides (60-120 min each)1× VO2max intervals (4×4 min @ 106-120% FTP)1× rest day

Build10-12h/wk

Increase hard session frequency to 2/week, maintain volume

3× Zone 1-2 easy rides (75-120 min)1× VO2max session (5×4 min @ 106-120% FTP)1× threshold intervals (3×12 min @ 95-105% FTP)

Peak9-11h/wk

Highest hard-session intensity, maintained easy volume

2× high-intensity sessions (VO2max + race simulation)3× easy Zone 2 rides for recovery and volume

Taper5-6h/wk

Reduce volume 40%, keep 1 hard session

1× short VO2max openers2× easy spins

A true polarized plan where 80% of all training time stays in Zones 1-2 and the remaining 20% is Zone 4-5. No tempo, no sweet-spot — just easy or hard. Based on Stephen Seiler's research showing this distribution produces the best long-term aerobic gains for trained cyclists.

Build a Polarized Plan

Example Workouts

Sample sessions from these plans — each with precise power targets you can export to your device.

Polarized Easy Day

75 min

warmup (45-55% FTP)steady (56-75% FTP)cooldown (40-55% FTP)

Zone Distribution

Z1 13%Z2 87%

The 80% component of polarized training — a pure Zone 1-2 endurance ride that builds aerobic base while keeping intensity low enough to allow full recovery for the next high-intensity session.

Polarized Hard Day

50 min

warmup (55-75% FTP)4× 4min 106-120% FTP / 4min reccooldown (40-55% FTP)

Zone Distribution

Z1 48%Z2 20%Z5 32%

The 20% component of polarized training — high-intensity VO2 max intervals that provide the concentrated stimulus for aerobic ceiling development, with no time wasted in the moderate-intensity middle zones.

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Works With Your Setup

Export workouts in FIT and ZWO formats to any device or platform.

GarminWahooCorosSuuntoHammerheadPolarZwiftRouvyMyWhooshIntervals.icuStrava