Twelve maximal cycling efforts. Eleven progressively shorter recoveries. One deceptively challenging indoor cycling workout.
The Wringer is a high-intensity cycling session originally available on Zwift. It features twelve 30-second efforts at Level V++, with recovery periods that become five seconds shorter after each repetition.
At first glance, 30 seconds of hard cycling might not sound particularly intimidating. However, the challenge isn’t simply producing one powerful effort. It’s maintaining the quality of all twelve repetitions as fatigue accumulates and your opportunities to recover gradually disappear.
This workout is an excellent challenge for experienced cyclists and triathletes looking to develop their ability to produce repeated high-intensity efforts.
Today’s Workout at a Glance
- Workout: The Wringer
- Discipline: Indoor Cycling / Smart Trainer
- Duration: 40 minutes 45 seconds
- Main Set: 12 × 30 seconds at Level V++
- Recovery: Level I, progressively decreasing from 2:40 to 1:50
- Primary Focus: Repeated high-intensity power and fatigue resistance
- Suitable For: Experienced cyclists and triathletes
The goal is simple: produce twelve high-quality efforts while maintaining as much consistency as possible from the first repetition to the last.
Where Did The Wringer Come From?
The Wringer is a workout originally found on Zwift, designed around short, demanding efforts separated by progressively shorter recovery periods.
You can explore the original workout here:
Zwift’s The Wringer – What’s on Zwift
I first became aware of this particular session through an Instagram post from triathlete Mark Kenna in November 2017.
Mark described completing the workout when he had only 45 minutes available for training. He reported improving his average power from 163 watts to 174 watts compared with an earlier attempt, while his average heart rate increased only slightly, from 143 to 145 beats per minute.
While those numbers don’t prove a training adaptation on their own, they illustrate one useful way to evaluate repeated attempts at the same workout: compare your ability to maintain power alongside your heart-rate response and perceived effort.
View Mark Kenna’s Instagram profile
Today’s Goal
The aim of The Wringer is to develop your ability to produce repeated high-intensity cycling efforts while managing increasing fatigue.
Unlike a workout where the efforts progressively increase in duration or intensity, the hard intervals remain the same throughout this session.
What changes is your recovery.
Your first rest interval lasts two minutes and forty seconds. Each subsequent recovery is five seconds shorter, until you have just one minute and fifty seconds before the final repetition.
The challenge is to maintain your power output and pedalling technique despite those progressively shorter opportunities to recover.
Why You’re Doing This Session
1. Develop Repeated High-Intensity Power
Cycling isn’t always about maintaining a steady effort.
Short climbs, accelerations, changes in pace and surges within a group can all demand power outputs substantially above your threshold.
The Wringer challenges you to produce repeated efforts at Level V++, helping you practise responding to these demanding changes in intensity.
2. Improve Your Ability to Recover Between Efforts
The recoveries are deliberately performed at Level I.
These easy periods give you an opportunity to regain control of your breathing and prepare for the next repetition.
As the recoveries shorten, maintaining the same quality of effort becomes progressively more difficult.
3. Develop Fatigue Resistance
Producing one hard 30-second effort is relatively straightforward for a well-trained cyclist.
Producing twelve quality efforts, with less recovery available as the workout progresses, presents a different challenge.
This session encourages you to manage fatigue rather than simply chase the highest possible power number.
4. Practise Mental Discipline
The final few repetitions require concentration.
You’ll need to resist the temptation to start too aggressively, stay focused on your pedalling technique and continue producing quality efforts even when you’re tired.
Today’s Workout: Zwift’s The Wringer
Warm-Up – 8 Minutes
- 8 minutes progressively increasing from Level I through to Level IV.
Start comfortably and gradually increase your effort. By the end of the warm-up, you should feel prepared for the demanding work ahead.
Main Set – 12 × 30 Seconds at Level V++
Complete the following sequence:
| Rep | Hard Effort | Level I Recovery |
|---|---|---|
| 1 | 30 sec Level V++ | 2:40 |
| 2 | 30 sec Level V++ | 2:35 |
| 3 | 30 sec Level V++ | 2:30 |
| 4 | 30 sec Level V++ | 2:25 |
| 5 | 30 sec Level V++ | 2:20 |
| 6 | 30 sec Level V++ | 2:15 |
| 7 | 30 sec Level V++ | 2:10 |
| 8 | 30 sec Level V++ | 2:05 |
| 9 | 30 sec Level V++ | 2:00 |
| 10 | 30 sec Level V++ | 1:55 |
| 11 | 30 sec Level V++ | 1:50 |
| 12 | 30 sec Level V++ | No recovery – begin cool-down |
The hard efforts should be very demanding, but aim to maintain repeatable power rather than sprinting so aggressively that performance collapses later in the session.
Keep every recovery genuinely easy at Level I.
Cool-Down – 5 Minutes
- 5 minutes at Level I–II.
Gradually reduce your effort and allow your breathing and heart rate to settle.
Post-Workout
- 10 minutes stretching.
Total cycling duration: 40 minutes 45 seconds.
Coaching Tips: How to Get the Most from The Wringer
Don’t Win the First Interval
One of the biggest mistakes cyclists make during high-intensity interval training is starting too aggressively.
With two minutes and forty seconds of recovery after the first repetition, the early intervals can feel surprisingly manageable.
However, you still have another eleven efforts to complete.
Choose a demanding but repeatable power output. Your goal isn’t to set a personal best in the first interval and then struggle through the remainder of the workout.
Keep Your Recoveries Easy
Resist the temptation to maintain moderate power during the rest intervals.
The recoveries are there for a reason.
Keeping them at Level I helps you prepare for the next hard effort, particularly as the recovery duration becomes shorter.
Compare Your First Four and Last Four Efforts
A useful way to evaluate the quality of this workout is to compare your early repetitions with your final efforts.
Ask yourself:
- Did I maintain a reasonably consistent power output?
- Did my pedalling technique deteriorate as fatigue accumulated?
- Was I able to complete the final repetitions without a substantial drop in quality?
- Did I start too hard, or could I have been more ambitious?
These observations can help guide how you approach the workout next time.
Maintain Good Technique
As fatigue accumulates, avoid sacrificing your pedalling technique simply to produce another few watts.
Stay controlled on the bike and focus on smooth, effective pedalling.
If your power output is collapsing or your technique is deteriorating significantly, it’s better to finish the session early than continue accumulating poor-quality repetitions.
Coach Ray’s Workout Data
When reviewing your data, pay particular attention to how your power output changed between the opening and closing repetitions.
The goal isn’t necessarily to achieve identical power in every interval, but to demonstrate that you managed your effort well enough to maintain quality throughout the session.
My Strava Activity
Who Is This Workout For?
The Wringer is best suited to experienced cyclists and triathletes who already have a reasonable foundation of aerobic fitness and experience with high-intensity interval training.
It can be particularly useful for athletes preparing for events where repeated surges, accelerations or changes in intensity are common.
Because the session includes twelve very demanding efforts, it isn’t intended as an easy ride or recovery session.
If you’re relatively new to structured cycling training, establish a consistent aerobic foundation before introducing workouts of this intensity.
Common Mistakes to Avoid
Starting too hard: Your first repetition should be demanding, but it shouldn’t compromise the remaining eleven.
Riding too hard during recovery: Keep the Level I intervals easy enough to prepare for the next effort.
Chasing peak power rather than repeatable power: A single impressive number doesn’t make the workout successful.
Ignoring deteriorating technique: Maintaining good movement quality is more important than forcing another poor repetition.
Adding this workout when already fatigued: Schedule it when you’re sufficiently recovered to complete high-quality efforts.
Frequently Asked Questions
Is The Wringer a VO₂ Max Workout?
The Wringer contains repeated efforts at very high intensity and can provide a strong cardiovascular stimulus. However, the precise training response depends on your power output, fitness and recovery between repetitions.
The short efforts and progressively shorter recoveries make it particularly useful for practising repeated high-intensity cycling.
Can I Complete The Wringer Without a Smart Trainer?
Yes.
You can complete the workout on a conventional indoor trainer, provided you can monitor your effort and follow the interval timings.
A power meter is particularly useful for maintaining consistency, although experienced athletes can also use perceived exertion.
Should Every 30-Second Effort Be an All-Out Sprint?
The original workout is extremely demanding, but there’s an important difference between producing one maximal sprint and maintaining twelve quality efforts.
Aim for a very hard, repeatable intensity that allows you to complete the session without a dramatic collapse in power.
How Often Should I Complete This Workout?
The Wringer should be treated as a demanding quality session, not an everyday workout.
How frequently you include it depends on your training history, current fitness, recovery and the other sessions in your programme.
Can Triathletes Benefit from The Wringer?
Yes, particularly triathletes who need to manage changes in cycling intensity.
However, the workout should complement, rather than replace, the aerobic endurance and event-specific training that form the foundation of a well-balanced triathlon programme.
Understand Your Training Intensity
Knowing how hard to work is essential for getting the intended benefit from any structured cycling session.
I use a five-level intensity system to help athletes understand the purpose of each workout.
If you’re working directly with me, your sessions will often include individualised power or heart-rate targets based on your current fitness and available training data.
Ride The Wringer with Qwik Kiwi Velocity
If you’d prefer to complete structured indoor cycling workouts with coaching and guidance, Qwik Kiwi Velocity provides coach-led video sessions designed to help you get more from your training.
Velocity includes a library of on-demand cycling workouts, along with live squad sessions on Tuesdays and Thursdays at 6:00 am New Zealand time.
The Tuesday sessions are generally 45 minutes or less, while Thursday sessions are approximately one hour.
Whether you’re training for a triathlon, improving your cycling fitness or simply looking for more structure in your indoor riding, Velocity can help you train with greater purpose.
Final Coaching Thoughts
The Wringer is a short but demanding indoor cycling workout that rewards good pacing, controlled recovery and consistent execution.
The progressively shorter rest intervals create a challenge that goes well beyond simply producing twelve hard efforts.
Remember, the objective isn’t to win the first interval.
It’s to still be producing quality power on the twelfth.
Start controlled. Recover properly. Keep the power consistent.
Happy training!
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