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Cycling Training Zones: The Complete Practical Guide
Training zones turn "ride your bike a lot" into a plan. The idea: different intensities produce different adaptations, so you target them deliberately instead of riding every ride at the same medium-hard effort — the classic plateau mistake.
The seven classic zones
Most coaches use a version of the Coggan power zones, anchored to FTP (functional threshold power — the effort you can hold about an hour; see our FTP guide). Heart-rate equivalents are approximate, anchored to threshold heart rate (LTHR).
| Zone | Name | % of FTP | Feels like | Trains |
|---|---|---|---|---|
| 1 | Recovery | <55% | Barely trying | Blood flow, recovery |
| 2 | Endurance | 56–75% | All-day pace, full sentences | Aerobic base, fat metabolism, mitochondria |
| 3 | Tempo | 76–90% | Comfortably hard, short sentences | Muscular endurance |
| 4 | Threshold | 91–105% | Hard, few words | Raises FTP itself |
| 5 | VO2max | 106–120% | 3–8 min max efforts | Aerobic ceiling |
| 6 | Anaerobic | 121–150% | 30 s–2 min surges | Sprint/attack power |
| 7 | Neuromuscular | Max | <15 s sprints | Pure power, form |
The 80/20 distribution
Research on elite endurance athletes across sports consistently finds a polarized pattern: roughly 80% of training time easy (zones 1–2) and 20% genuinely hard (zones 4–6). Amateurs usually invert this into constant zone 3 — too hard to build volume, too easy to force adaptation. A workable week on 6 hours: two easy 90-minute zone 2 rides, one interval session (e.g., 4 × 8 minutes at threshold with 4-minute recoveries), and one longer weekend endurance ride with a few tempo blocks.
Zones without a power meter
The talk test is legitimately validated: zone 2 lets you speak in full sentences; threshold reduces you to short phrases; VO2 efforts leave you a word at a time. Heart rate works too, with two caveats — it lags effort by 1–2 minutes (bad for short intervals) and drifts upward in heat. For intervals under 3 minutes, pace by feel and use HR only for the longer stuff.
How fast it works
Expect noticeable endurance gains in 4–6 weeks and measurable FTP gains in 8–12 weeks of consistent structure. Retest monthly under matched conditions — the protocol in our speed benchmarks guide works — and track calorie needs for longer sessions with the calculator.
Keep exploring
Put these numbers to work with the free CalculateBike speed and calorie calculator, browse the cycling gear guide, or read more cycling articles. Prefer two feet to two wheels? Our sister tools CalculateSteps and CalculateRun cover walking and running.