WHO THIS IS FOR
IS THIS YOU?
The rider new to training zones
You have an FTP number and want to know precisely where each training intensity sits in watts.
The rider confused by different zone systems
You've seen 5-zone, 6-zone, and 7-zone systems and want to understand how they relate.
THE ROADMAN VIEW
The Roadman view
The useful short answer is the percentage chart. The important qualification is that zones are boundaries drawn on a continuous response, not seven separate laboratory measurements.
Attach the FTP protocol, zone model and date to the numbers. A ramp estimate, a 20-minute estimate and critical power can correlate while still producing meaningfully different prescriptions for an individual rider.
Do not turn this chart into a universal weekly plan. Seven-zone labels describe workout ranges; three-zone training-distribution research answers a different question. Athlete, event, phase, volume and counting method all affect the programme.
EXPERT EVIDENCE
WHAT THE EXPERTS SAY
- Joe FrielAuthor of The Cyclist's Training Bible; co-founder of TrainingPeaks
Roadman's source-bounded takeaway from Friel's interview is to organise intensity deliberately within the complete week. It is not evidence that each fixed FTP band is a distinct measured threshold or that one weekly distribution is universal.
Hear it: Joe Friel's Cycling Training Plan Structure | Roadman Cycling - Professor Stephen SeilerExercise physiologist, University of Agder; polarised-training researcher
Roadman's source-bounded takeaway from Seiler's interview is that three-domain research and seven-zone workout labels must be named before they are compared. It does not make every minute in seven-zone Zone 3 physiologically useless.
Hear it: 80/20 Training to Ride Faster | Dr Stephen Seiler
PRACTICAL APPLICATION
DO THIS WEEK
Calculate your zones from your current FTP
Use the FTP Zone Calculator to apply every boundary consistently. It rounds each upper limit down to a whole watt and begins the next range one watt higher, so one watt cannot appear in two zones or in neither.
Name the purpose before choosing a zone
Decide whether the session is recovery, endurance, tempo, threshold-related, VO2max-oriented, anaerobic or neuromuscular work. The chart then translates that purpose into a first watt range; it does not choose the weekly dose for you.
Cross-check the rider's response
Compare watts with breathing, RPE, heart rate and repeatability. If the planned response repeatedly misses under comparable conditions, check the FTP method, fatigue, heat, fuelling and individual power-duration profile before changing the chart.
COMMON MISTAKES
WHAT CYCLISTS GET WRONG
MISTAKERiding most sessions in zone 3 (tempo) because it 'feels like training'.
FIXUnplanned tempo can disrupt the intended easy-hard pattern, but planned tempo is not automatically wasted. Judge whether the intensity matches the session and complete programme.
MISTAKEConfusing zone systems between platforms and comparing incompatible numbers.
FIXPlatforms can use different names, percentages and rounding. Compare the underlying watts or percentages and keep the model named instead of assuming equal zone numbers mean equal work.
MISTAKEUsing a stale FTP to calculate zones.
FIXRetest when repeated comparable sessions show that the input no longer matches the intended response. Use the same protocol and conditions where practical; there is no universal three-month expiry date.
FAQ
FREQUENTLY ASKED QUESTIONS
What zone is sweet spot training in?
Which zone is best for losing weight while cycling?
Is zone 5 the same as VO2max training?
Do different zone systems give different training prescriptions?
What zone should most of my training be in?
How often should I update my training zones?
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