Here's something I keep hearing from riders in the community: "I'd train more if I had the time." And then I ask how they get to work, and they say they cycle. Four days a week. Forty minutes each way. That is five to six hours of riding a week that most people treat as dead time — headphones in, same pace, same route, same moderate effort day after day.
You are already on the bike. You are already spending the hours. The question is whether those hours are doing anything for you or whether they are just grey-zone noise sitting on top of your actual training.
Here's the good news. A commute of 25 to 45 minutes each way is one of the best training windows a time-crunched cyclist has. It is built into your day. No extra time required. No negotiation with the family calendar. No 5:30 am alarm for the turbo. But only if you treat it with the same structure you would bring to a proper session.
Why Most Commuters Leave Fitness on the Table
The problem is not the commute itself. The problem is that most cyclists ride every commute at exactly the same effort — roughly 70 to 82 per cent of FTP, heart rate sitting in the low tempo zone. Every single day, same intensity, same pace. It feels productive. You arrive at the office a bit sweaty. You tell yourself you trained.
You did not train. You rode in the grey zone. The same no-man's-land that Professor Stephen Seiler has spent two decades warning about — too hard to be recovery, too easy to be a meaningful stimulus. Five hours a week of grey-zone riding produces almost no adaptation. It just accumulates fatigue.
The fix is dead simple: stop treating every commute as the same ride. Some commutes should be hard. Some should be embarrassingly easy. And knowing which is which on any given day is what separates commute training from commuting.
Classifying Your Commute Days
Your commute needs to fit your wider weekly plan. That means each commute gets a purpose, just like every other ride on your schedule.
Easy days. Two to three commutes per week should be genuine Zone 1 to low Zone 2. Nose-breathing pace. Heart rate under 72 per cent of max. You should feel like you are barely working. These rides replace recovery spins — the ones you would do on the turbo for 40 minutes if you were not commuting.
Tempo days. One commute per week at a sustained moderate-to-hard effort. The working segment is 15 to 25 minutes at 82 to 88 per cent of FTP — solid tempo, not threshold. This replaces a midweek tempo session and builds muscular endurance without the recovery cost of true intervals.
Interval days. One commute per week with structured high-intensity efforts. This is your quality session — 3-to-5-minute efforts at 95 to 110 per cent of FTP, with recovery between. This replaces a threshold or VO2max session from your training plan.
That gives you four commutes: two easy, one tempo, one interval. Your weekend stays free for the long ride and a social spin or rest day. If you are not sure where your zones actually sit, run your numbers through the FTP zones calculator or the heart rate zones tool before you start prescribing intensities to yourself.
Structuring the Commute Ride
A 35-to-45-minute commute breaks into three clean segments.
Warm-up segment (8 to 12 minutes). The first part of any commute. Easy spinning, gradually raising heart rate, getting the legs turning over. This is also usually the part of the commute with the most junctions, traffic lights, and navigational decisions — so it works naturally as a low-intensity start. Do not skip this. Cold efforts at threshold are how you pick up niggles in the knees and hips.
Working segment (15 to 25 minutes). This is where the actual training happens. On an easy day, the working segment is just more easy riding. On a tempo day, it is a sustained block at the prescribed intensity. On an interval day, it is your structured efforts. Choose a section of your route that is relatively clear of junctions — a straight road, a cycle path, a quiet stretch through a park — and use that as your repeatable working segment every day.
Cool-down segment (5 to 10 minutes). Easy spinning into the office. Drop the intensity, bring the heart rate down, let the legs flush. This matters more than most people think. If you arrive at work at threshold heart rate, drenched in sweat and unable to form a sentence for 20 minutes, your colleagues will notice and your shower time doubles. A proper cool-down means you arrive composed.
If your commute is only 20 to 25 minutes, the structure still works — you just compress it. Five minutes warm-up, 12 to 15 minutes working, five minutes cool-down. Shorter commutes are better suited to tempo efforts than intervals because you need enough time for the efforts and the recovery between them.
Interval Options That Actually Work on a Commute
Let me be really clear about this: traffic light sprints are not interval training. Jumping out of the saddle every time a light goes green, hammering for 200 metres until the next junction, then braking — that is not a controlled stimulus. It is random surges with random recovery, and the power data looks like a seismograph. No coach in the world would prescribe that.
What works is timed efforts on known segments. You ride the same route every day, so you know exactly where the clear stretches are. You know where the road opens up, where there is a long, straight cycle path, where there is a gentle incline with no side roads. Those are your effort segments.
Option 1: Threshold blocks. Two to three efforts of 4 to 5 minutes at 95 to 100 per cent of FTP, with 3 to 4 minutes easy spinning between. This fits a 35-minute commute perfectly — warm-up, three efforts with recovery, cool-down.
Option 2: VO2max intervals. Four to five efforts of 3 minutes at 110 to 115 per cent of FTP, with 3 minutes easy between. Higher intensity, shorter duration. These need a properly clear stretch of road because your head needs to be in the effort, not scanning for turning cars.
Option 3: Over-under blocks. Two blocks of 8 to 10 minutes alternating between 92 and 105 per cent of FTP every 2 minutes. This is a nasty session but it builds the ability to clear lactate while still working — exactly the fitness you need on undulating sportive courses. When I had Dan Lorang on the podcast, he talked about variations of this session being a staple for Grand Tour riders. The principle scales down perfectly to a commute.
Option 4: Tempo with surges. A 20-minute block at 85 per cent of FTP with four 30-second surges to 120 per cent sprinkled through it. This mimics the rhythm of a group ride — sustained effort with short accelerations — and is less mentally demanding than pure intervals.
Use the interval builder tool to plan your efforts before you ride. Knowing exactly what you are doing before you clip in is the difference between a proper session and a improvised thrash.
Easy Day Discipline: The Hardest Part
Here's where it gets really interesting — and where most commute trainers fall down. The easy days are harder to get right than the interval days.
The problem is ego. You are on a bike. Other cyclists are around. Your Strava is recording. The road tilts up slightly and your body defaults to "push a bit harder" because going slowly on a bike feels wrong. Every commuter I have spoken to in the community admits the same thing: their easy days average 10 to 15 per cent higher power than they should.
Over a week, this is catastrophic. Two commutes that should have been Zone 1 recovery become two more grey-zone sessions. Your legs never properly recover. By Thursday's interval commute, you are flat. The efforts are 5 per cent below target. You tell yourself you had a bad day. You did not. You had three bad easy days that stole the freshness you needed.
The fix is simple but requires discipline: use a heart rate cap. Set a heart rate alert on your head unit — 72 per cent of max, or whatever your Zone 1 ceiling is — and every time it beeps, back off. It will beep a lot. You will feel like you are crawling. Other commuters will pass you. This is the point.
Professor Seiler's data on intensity distribution is unambiguous here. The athletes who go properly easy on easy days get a bigger return on their hard days. The easy days are not wasted time. They are the platform that makes the hard days productive.
The Logistics: Kit, Showers, and Bikes
The reason most people quit commute training within a month is not the riding. It is the logistics. The riding is the easy part. The faff around it is what kills the habit.
Kit management. Drive or take public transport on Monday with five days' worth of office clothes. Leave them at work. Ride the rest of the week carrying only your lunch, phone, and a minimal change of cycling kit. This means you need: a drawer or locker at work, a small bag for the essentials, and the discipline to do the Monday drop-off every week. If you try to carry a suit and shoes on the bike every day, you will stop commuting by October.
Shower access. This is the deal-breaker for most riders. If your office has showers, you are sorted. If it does not, you have three options: find a gym within walking distance of the office, use wet wipes and a change of clothes (workable for easy commute days, not for interval days), or adjust your interval commute to the ride home instead of the ride in. Most riders find that doing intervals on the way home and easy rides on the way in solves the sweat problem entirely.
Bike choice. Your road bike with clip-on mudguards and a decent set of lights is the best option for commute training. It is the bike you train on, so the position is right, the power meter is there, and the handling under hard efforts is what you are used to. A heavy hybrid or city bike with flat bars is fine for getting to work, but it is not a training tool. If you are serious about using the commute for structured sessions, ride the bike you train on.
Route selection. You probably need two routes — one direct and one training route. The direct route is for easy days: shortest distance, most bike infrastructure, lowest stress. The training route is longer, avoids major junctions, and includes your working segments. If the training route adds 10 minutes to the commute, that is 10 minutes of structured riding you were not getting before. Budget it.
Safety Considerations for Commute Training
This needs saying plainly: doing intervals in heavy traffic is stupid. Do not do it. The moment you are at 110 per cent of FTP with your eyes fixed on a power number, your situational awareness drops. You are breathing hard. Your peripheral vision narrows. Your reaction time slows. And you are surrounded by drivers who are checking their phones, opening car doors, and turning without signalling.
Rule one: know your route cold. Commute training only works on routes you have ridden dozens of times. You need to know every pothole, every pinch point, every junction where cars cut across the bike lane. Novel routes require too much cognitive load. Save the new routes for the weekend.
Rule two: match the session to the road. Easy days can follow any route. Tempo and interval days need clear, quiet segments with good sight lines and minimal interaction with motor traffic. If your commute does not have these segments, do the intervals on the turbo and commute easy.
Rule three: be visible. You are riding in rush hour. Front and rear lights, always, even in summer. Bright clothing. The interval session on your commute is not worth anything if you get taken out by a car that did not see you.
Rule four: weather is a veto. Heavy rain, ice, strong crosswinds — any of these turn an interval commute into a hazard. On bad weather days, ride easy if you ride at all. There is no interval session worth a broken collarbone. Have a backup plan: drive, take the train, or ride the turbo. The structured flexibility of commute training only works if you are honest about when the conditions do not allow it.
How Commute Training Fits Your Weekly Plan
The critical rule: commute training replaces sessions in your plan. It does not sit on top of them.
If your weekly plan calls for two interval sessions, a tempo ride, a long endurance ride, and two easy spins, here is how the commute fits:
Monday — Rest day. No commute. Drive or take the train.
Tuesday — Interval commute (in or home). This replaces the midweek interval session. 40 minutes with structured threshold or VO2max efforts.
Wednesday — Easy commute (both ways). 35 minutes each way at Zone 1. This replaces the recovery spin in your plan. Total easy riding: 70 minutes.
Thursday — Tempo commute (in or home). 40 minutes with a 20-minute tempo block. This replaces the midweek tempo ride. Ride the other direction easy.
Friday — Easy commute (one way). 35 minutes Zone 1. Drive or take the train the other direction if you need the recovery.
Saturday — Long endurance ride. 2.5 to 4 hours, mostly Zone 2. This is your proper weekend ride and it stays in the plan as normal.
Sunday — Rest or easy social ride. Family day, coffee spin, or full rest.
Total structured riding: 6 to 8 hours. Zero extra time carved from your week. The commute hours you were already spending are now training hours. Use the TSS calculator to track the weekly load and make sure the cumulative stress is not creeping above what you can recover from.
When to NOT Train on the Commute
Not every commute should be a training ride. There are days when the right answer is to ride easy or not ride at all.
After a hard weekend. If Saturday's long ride left you properly fatigued — legs heavy, motivation low, resting heart rate elevated — Monday and Tuesday commutes should be easy or skipped entirely. Commuting through accumulated fatigue just extends the recovery debt.
During a rest week. Every third or fourth week, drop intensity across the board. Commute easy all week. No intervals, no tempo. The commute becomes transportation, nothing more.
When you are ill. This should not need saying, but it does: if you are fighting off a cold, do not do intervals on the commute. Do not even commute. Rest. Train through a virus and you turn a three-day cold into a three-week hole in your fitness.
In dangerous conditions. Ice, standing water, gale-force winds, poor visibility. Any of these make a hard commute unsafe. Ride easy, take an alternative route, or do not ride.
When life stress is high. A brutal week at work, a family crisis, poor sleep. Your body does not separate training stress from life stress — it just tallies the total. When life stress peaks, training intensity should drop. The commute goes easy. The intervals move to next week.
The riders who get the most from commute training are the ones who are honest about when the conditions — physical, mental, environmental — are not right for it. Flexibility is not weakness. It is the thing that keeps the habit sustainable for months and years rather than a six-week burst that ends in burnout.
Making It Stick
Commute training is not glamorous. There are no Strava kudos for a well-executed 4-minute threshold block on the A24 cycle lane. Nobody is posting their commute power file on Instagram. But the riders I know who have committed to structured commuting — riders in the Roadman community who train 6 to 8 hours a week and hold down full-time jobs — consistently say it is the single change that made the biggest difference to their fitness.
The reason is simple. Consistency beats everything. And a training session that is built into your day, that does not require negotiation or planning or willpower, that happens because you need to get to work anyway — that is the most consistent session you will ever have.
Start with one structured commute per week. Make it a tempo day. Ride the rest easy. Do that for a month. Then add an interval commute. Then start varying the easy days with heart rate discipline. Build the habit before you build the intensity.
You are already riding. Make the riding count.
Companion reads: training on 8 hours a week, the self-coaching framework, training on 6 hours like Roglic's coach, and the complete interval sessions guide.