AI-built cycling training plan
Road, indoor (Zwift), gran fondo or sweet spot. EntrenAI calculates your FTP from a 20-minute test, defines the 7 Coggan zones and distributes weekly volume based on your goal and availability. Every session adapts to your real fatigue.
Updated
What is an AI-built cycling training plan?
Road and indoor cycling training is structured around a single reference value: FTP (Functional Threshold Power) — the maximum power you can sustain for 60 minutes under optimal conditions. From FTP, the 7 Coggan zones are derived, the most-used power zone model in serious recreational and competitive cycling:
- Z1 — Active Recovery (<55 % FTP): very easy spinning for regeneration
- Z2 — Endurance (56-75 % FTP): aerobic base, where most mileage happens
- Z3 — Tempo (76-90 % FTP): "middle" zone, useful but demanding
- Z4 — Threshold (91-105 % FTP): the FTP/lactate range
- Z5 — VO2max (106-120 % FTP): 3-8 min intervals
- Z6 — Anaerobic capacity (121-150 % FTP): 30 s-2 min short intervals
- Z7 — Neuromuscular sprint (>151 % FTP): 5-15 second efforts
The key concept is the Sweet Spot (88-94 % FTP): the zone delivering maximum aerobic adaptation with the lowest possible systemic fatigue. It's where 30-40 % of effective training time happens for intermediates and advanced riders during load blocks.
EntrenAI codes the exact 7 Coggan zones and applies validated models (polarized 80/20 for specific event prep, pyramidal for base blocks, sweet-spot focused for FTP improvement) based on your level, goals and availability.
Five plans, five ways to split the week
Same zone engine, different plans: the hours, the long ride, the session that matters and what you prepare for all change. Pick yours and you will see its zones in watts, its sessions drawn out and its load curve.
| Plan | Weeks | Hours/week | Long ride | Key session | Who for |
|---|---|---|---|---|---|
| Beginner | 12 | 3.5-6.5 | 2.5 h | Z2 with cadence changes | Your first 500 km |
| Road | 12 | 6-10 | 4 h | Threshold 3×10 min | Group rides and sportives |
| Gran fondo | 16 | 6-12 | 5.5 h | 4 h with climbs at tempo | 120-200 km with climbing |
| FTP intervals | 12 | 6-10 | 3 h | 2×20 min at 97% | Raise FTP in three months |
| Indoor / Zwift | 12 | 4-7 | 2 h | Sweet spot 3×12 min | Trainer on weekdays |
Your AI-generated plan
1. Initial FTP test. The system proposes one of three protocols:
- 20-minute test (standard): warm-up + 20 min at maximum sustainable + cool-down. FTP = average power × 0.95.
- Ramp test (Zwift FTP test): power increments every minute until failure. FTP = 75 % of 1-min peak power.
- 8-minute test: two 8-min max efforts separated by 10 min recovery. FTP = average power × 0.90.
Connect Zwift, Strava or a power meter and EntrenAI auto-recalibrates your FTP every 4-6 weeks by tracking the normalized power (NP) of your best 20-60 min sessions.
2. Distribution by level:
- Beginner (<6 months): 4-6 hours/week, 80 % in Z1-Z2, 15 % in Z3, 5 % in Z4. No VO2max intervals yet.
- Intermediate (6 months-2 years): 6-10 hours/week, 70 % Z1-Z2, 20 % Z3-Sweet Spot, 10 % Z4-Z5. Formal intervals appear.
- Advanced (2+ years, solid base): 8-15 hours/week, polarized 80/0/20 distribution for specific prep, or pyramidal 60/30/10 for FTP improvement.
3. Session types in your plan:
- Long Z2 rides: 2-5 hours, aerobic base
- Sweet Spot intervals: 2×20 min @ 90 % FTP, 3×15 min @ 92 %
- VO2max intervals: 5×4 min @ 110-115 % FTP with 1:1 rest
- Threshold / FTP intervals: 2×20 min @ 95-100 %
- Anaerobic / over-unders: 90 % / 110 % FTP alternation in blocks
- Recovery rides: 60-90 min Z1, unstructured
4. Block periodization. Goal is a gran fondo or stage event: 4 weeks base (Z2 + sweet spot), 4 weeks build (FTP + VO2max), 2-3 weeks peak (short intervals + simulation), 1-2 weeks taper. Goal is generic FTP improvement: 4-week cycles with end-of-cycle deload.
5. Daily fatigue adjustment. As in every EntrenAI plan, the engine calculates your readiness score daily (40 % accumulated volume + 30 % sleep + 30 % stress). Below 40, the day's session auto-substitutes for a recovery ride or cancels. VO2max intervals are never scheduled with accumulated fatigue > 75 % — the stimulus becomes counterproductive.
Your power zones, in the watts of your FTP
The road plan writes every session as a percentage of FTP, and the app turns it into watts with your latest test. These are the six zones for three FTPs common in this plan; the trainer paints them on screen and the head unit warns you when you drift.
| Zone | % FTP | FTP 200 W | FTP 240 W | FTP 280 W | What it trains |
|---|---|---|---|---|---|
| Z1 | 0-55 % | 0-110 W | 0-132 W | 0-154 W | Active recovery |
| Z2 | 56-75 % | 112-150 W | 134-180 W | 157-210 W | Endurance: the base |
| Z3 | 76-90 % | 152-180 W | 182-216 W | 213-252 W | Tempo and sweet spot |
| Z4 | 91-105 % | 182-210 W | 218-252 W | 255-294 W | Threshold (FTP) |
| Z5 | 106-120 % | 212-240 W | 254-288 W | 297-336 W | VO2max |
| Z6 | 121-150 % | 242-300 W | 290-360 W | 339-420 W | Anaerobic capacity |
Who is this plan for?
Four main profiles:
- Beginner (<6 months, 4-5 h/week). Base plan focused on aerobic build. Progressive long Z2 rides (45 min → 90 min → 120 min over 8 weeks), gentle sweet spot introduction, no hard intervals yet. Emphasis on learning efficient cadence (85-95 rpm) and holding Z2 without spilling into Z3.
- Intermediate cycling enthusiast / amateur (1-3 years, 6-10 h/week). Sweet spot focused plan. 2-3 SST sessions per week (2×20 min, 3×15 min @ 88-94 % FTP), 1 long ride, 1-2 recovery rides. Typical FTP between 200-280 W. Expected FTP improvement 5-10 % in 12 weeks.
- Gran fondo / long event rider. 12 weeks of specific prep: load blocks with 3-5 h rides, accumulated sweet spot, simulations of the event's actual elevation profile (long climbs at sweet spot, descents as recovery). 2-week taper before the event.
- Indoor / Zwift focused. For those training only inside on a smart trainer. Plan of structured sessions (every session has ERG mode prepared, short rests, efficient intervals). Typical time: 4-7 h/week with 5-6 sessions, all <90 min because indoor is more demanding per kg than road.
Coming from running or triathlon and wanting to specialize on the bike? The plan leverages your aerobic base but manages the specific transition: the first 4 weeks focus on cadence, bike position and pedaling mechanics; your VO2max transfers but pedaling economy needs weeks of adaptation.
Your first weeks, in detail
Week 4
Intermediate sweet spot focused — load week (FTP 230 W reference)| Day | Session type | Detail | Duration |
|---|---|---|---|
| Monday | Recovery ride | 60 min in Z1 (115-130 W). Free cadence, no structure. Regeneration spinning to recover from Sunday's long ride. | 60 min |
| Tuesday | Sweet Spot intervals | 15 min Z2 warm-up + 3×15 min @ Sweet Spot (210 W ≈ 91 % FTP) with 5 min Z1 rest + 10 min cool-down. Target cadence 85-90 rpm in intervals. | 85 min |
| Wednesday | Z2 endurance | 90 min in Z2 (165-185 W). Flat or rolling route. Indoor: ERG mode at constant 75 % FTP. | 90 min |
| Thursday | VO2max intervals | 15 min warm-up + 5×4 min @ 115 % FTP (264 W) with 4 min Z1 rest + 10 min cool-down. Cadence 95-100 rpm. Hardest session of the week. | 70 min |
| Friday | Rest or recovery | Full rest or 45 min Z1 recovery. Hip and lower-back mobility. | 45 min optional |
| Saturday | Sweet Spot extended | Warm-up + 2×25 min @ Sweet Spot (210 W) with 8 min rest + cool-down. Volume accumulated in productive zone. | 100 min |
| Sunday | Long Z2 ride | 3 hours in Z2 (165-185 W). Outdoor with friends or solo. Indoor: movie + audiobook recommended, ERG mode at 70 %. Hydrate every 20 min, gels every 45 min if over 90 min. | 180 min |
Week 10
Gran fondo prep — build block, simulation week (FTP 250 W)| Day | Session type | Detail | Duration |
|---|---|---|---|
| Monday | Recovery ride | 60 min Z1, free cadence. Hydration + good carbs (400-600 g day before if you did long on Sunday). | 60 min |
| Tuesday | Threshold intervals | Warm-up + 2×20 min @ 95 % FTP (237 W) with 8 min Z1 rest + cool-down. Threshold effort, hard zone held. Cadence 85-90 rpm. | 85 min |
| Wednesday | Z2 endurance | 2 hours Z2 with 4×3 min @ Sweet Spot interspersed every 20 min (not intervals — intensity 'waves'). | 120 min |
| Thursday | Over-unders | Warm-up + 4×8 min over-unders (1 min @ 110 % FTP / 1 min @ 90 % FTP, alternating) with 4 min Z1 rest + cool-down. Simulates the variable rhythm of gran fondo climbs. | 85 min |
| Friday | Rest | Full rest or 30 min yoga. Bike check for Saturday. | — |
| Saturday | Long simulation | 4-5 hours with event elevation if possible. Gran fondo with 1500 m elevation? Find similar route. Sweet spot accumulated on climbs, Z2 on flats. Hydrate every 15 min, 60-90 g carbs/hour. | 240-300 min |
| Sunday | Easy spin or recovery | 60-90 min low Z1-Z2. Active recovery, no structure. After: meal with good carbs and protein. | 75 min |
These examples are real extracts from the EntrenAI planning engine. Your personal plan adjusts to your level, equipment and availability.
Equipment needed
EntrenAI automatically substitutes any exercise if you don’t have the gear.
- Road or gravel bike (preferably with power meter for precise plan execution)
- Power meter (Garmin Vector/Favero pedals, Quarq/Stages/4iiii cranks, or PowerTap hub). Essential for power-zone training
- Chest heart rate monitor (more reliable than wrist for zones)
- Cycling computer (Garmin Edge, Wahoo Elemnt, Hammerhead Karoo)
- For indoor: smart trainer (Wahoo Kickr, Tacx Neo, Elite Direto) + fan + mat. Direct-drive (not wheel-on) for power-based sessions.
- Helmet, technical apparel, quality bib shorts with chamois
- Bottle + cages, repair kit (tube, lever, pump, multi-tool)
What most people get wrong (and how to avoid it)
- 1
Always pedaling 'in the middle of the zone'
The most common mistake in amateur cycling. People go out at 'comfortable but fast pace' that's actually between high Z2 and low Z3 (~80-85 % FTP). It's the least productive zone: too hard to accumulate volume without fatigue, too easy to drive threshold adaptation. Distribution should be polarized (lots of Z1-Z2 + specific Z4-Z5 amounts) or pyramidal (with sweet spot Z3-high emphasis). EntrenAI shows session zone breakdown and warns when your 'free' ride lands in the mid-Z3 hole.
- 2
Disrespecting the FTP test
Many under- or overestimate their FTP. Overestimate it and threshold intervals crush you and you bail; underestimate it and sessions feel comfortable but produce no adaptation. The test must run every 4-8 weeks under controlled conditions (same setup, same profile, rested), and results apply immediately to the plan. EntrenAI validates the test against your past 4 weeks' average performance: deviation >10 %, it asks you to retest.
- 3
Skipping recovery rides
Z1 rides (60-90 min at 50-65 % FTP) seem like 'wasted time'. They aren't: they boost blood flow, accelerate recovery from hard sessions and let you accumulate more total volume without overtraining. Pros spend 60-70 % of time in Z1-Z2; you're no different.
- 4
Mixing power with heart rate without context
Power is the training metric; heart rate is the biological fatigue marker. A well-executed session can hit target power with HR 5-10 bpm higher than last week — that signals accumulated fatigue. EntrenAI logs both metrics and warns if your decoupling (HR/power ratio) rises >5 % across 3 consecutive sessions: a sign you need a deload.
- 5
Not training cadence
Always pedaling at 75 rpm is inefficient. Always at 105 is exhausting for beginners. Optimal cadence depends on the effort: 85-95 rpm in Z2-Z3, 90-100 rpm in VO2max intervals, 100-110 rpm in sprints. The first weeks the plan includes specific cadence sessions (110 rpm drills in Z2, 65 rpm drills in sweet spot) to widen your efficient range.
- 6
Excessive volume indoor
One hour indoor equals 1.3-1.5 hours outdoors in cardiovascular stress (no natural rests, constant heat, fixed position). 90 structured indoor minutes = 2 outdoor hours. EntrenAI detects predominantly-indoor training and reduces total volume 20-25 % while keeping equivalent quality stimulus.
- 7
Ignoring nutrition on long rides
Above 90 minutes, without exogenous carbs, your glycogen drops to 30-40 % in 2 hours and performance falls 15-20 %. The rule: 30-60 g carbs/hour if the ride exceeds 90 min, 60-90 g/h if over 2 hours, 90-120 g/h in gran fondo. Hydration: 500-750 ml/h in temperate climates, 1 L/h in heat.
Cycling plans by goal and level
- AI-built beginner cycling planBeginner cycling plan: build an aerobic base from scratch, learn bike position and nutrition, and ride your first 60 km in 12 weeks at 3-4 rides a week.
- AI-built gran fondo cycling planGran fondo cycling plan for 100-160 km in 14-18 weeks: sweet spot at 88-94% FTP, long rides building to 4-6 hours and fueling at 60-90 g of carbs an hour.
- AI-built cycling FTP intervals planCycling FTP intervals plan for intermediate riders with a power meter: sweet spot, threshold and VO2max work to add 20-30 W to your FTP in 12 weeks.
- AI-built road cycling planRoad cycling plan for amateur riders with a 6-10 hour weekly base: FTP intervals, sweet spot at 88-94% FTP, climbing and long rides over 12-16 weeks.
- AI-built indoor cycling plan with ZwiftIndoor cycling plan for Zwift, TrainerRoad or Rouvy: 4-5 short ERG-mode sessions a week with sweet spot and FTP intervals. 12 weeks, ideal for winter.
Frequently asked questions
You can train by heart rate zones — though power is always superior. Coggan zones map reasonably to HR zones if you calculate your FTHR (Functional Threshold Heart Rate, similar to FTP but in BPM). EntrenAI auto-adjusts the plan: with no power, sessions are prescribed in HR zones with wider tolerances (since HR responds with 30-90 second lag to effort changes). For gran fondo or serious competition, we recommend investing in a power meter.
Indoor is 20-30 % more demanding per TSS than outdoor — no natural rests, heat, fixed position. EntrenAI lowers total volume when it detects mostly-indoor training, keeping the quality stimulus. Structured sessions (sweet spot, FTP, VO2max intervals) are more efficient indoor due to ERG mode precision. Long Z2 rides are superior outdoor due to psychology and environmental input.
Depends on your current base. Beginners with FTP <2 W/kg can realistically improve 20-25 % in 12-16 weeks (200 W → 250 W). Intermediates with FTP 2-3 W/kg, 5-10 % per 12-week block. Advanced with FTP >3.5 W/kg, 1-3 % per block. Improvement comes mainly from increasing Z1-Z2 volume and applying specific sweet spot blocks — not from doing more VO2max intervals.
Both. Sweet spot (88-94 % FTP) raises FTP gradually by accumulating productive volume; the main tool for intermediates and long-event prep (gran fondo, stage). VO2max (110-120 % FTP) raises the ceiling and is required for advanced gains or competition prep. EntrenAI mixes both in proportions depending on your goal: gran fondo prioritizes sweet spot, generic FTP improvement prioritizes the combination.
If your excess weight is significant, yes. FTP in W/kg is the most reliable predictor of climbing and racing performance. But losing weight at the cost of glycogen and muscle mass reduces absolute FTP and worsens performance. The right approach: small caloric deficit (-200 to -300 kcal/day) with high protein (1.8 g/kg), structured training, and patience. EntrenAI has a weight-loss mode that auto-adjusts intensity for the first 4-6 weeks (more Z2, less VO2max) to preserve muscle mass.
4-5 h/week is the minimum to improve consistently as a beginner. 6-10 h is the sweet spot for intermediates. Above 12-15 h you're in semi-pro/pro territory and the improvement-per-hour ratio drops sharply. Volume matters, but quality matters more below 8 h/week: 5-6 well-structured hours beat 10 poorly-distributed ones.
Yes — EntrenAI manages interference. Combining with strength (Hickson 1980): 6 h+ separation between heavy strength and quality cycling, no heavy deadlifts the day before a long ride. Combining with running: max 2 running sessions/week in cycling load blocks, avoid running 24 h after long ride (muscle damage is high). For Ironman or duathlon goals, see the Triathlon or Duathlon plans which already combine both.
With weather app integration or detected variable climates, long Z2 sessions get auto-indoor alternatives (trainer) for rain/extreme cold. Quality intervals (sweet spot, VO2max) hold indoor with no penalty since indoor is optimal for structured sessions. Only long rides (>3 hours) carry real loss when forced indoor due to psychological difficulty.
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