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CAROL bike – Double your fitness in 26 minutes per week with the world’s best & first AI bike.

THE CAROL bike is designed BY SCIENTISTS,ENGINEERS & DOCTORS in the lab for enjoying at home.That’s just a taster of what it took to bring you an AI-enabled exercise smart bike that allows you to attain results that were previously only observed in the lab.

This is real.You’re spending one-fifth the amount of time on CAROL bike and you’re getting twice the results.”  – Dave Asprey, Founder of Bulletproof 

CAROL bike features


You want a special bike for special results

During a CAROL sprint, the maximum effort levels are roughly three times higher than in HIIT cycling courses. On a typical exercise bike, this kind of performance is unachievable.

You’d have to:

  • Use the proper resistance (just in your sweet spot)
  • In a fraction of a second, at the right time (just after you’ve built up speed at a low resistance) (instantly go from very low to very high)
  • To put it another way, it’s quite tough to succeed without the help of an exercise physiologist.

It’s simple to conduct high-intensity sprints and achieve maximum performance on a CAROL bike.Simply go on the bike, log in, and the bike will guide you through two 20-second maximum intensity sprints (personalized resistance) interspersed with mild warm-up, recovery, and cool-down intervals.


Shorter, smarter workouts

You don’t have to be concerned with altering your resistance or keeping track of your production. CAROL takes care of everything for you, automating and leading you through each high-intensity sprint so you can concentrate on going all out.

The program learns your abilities, tracks your progress, and tailors each ride to push you to your limits. Our computer-controlled magnetic brake technology provides tailored and carefully calibrated resistance at precisely the appropriate time and rate.

CAROL has been certified to the most exacting standard for commercial-grade ergometers, and the bike’s sensors and algorithms will use CAROL’s patented Octane Score to properly assess your performance and fitness level.

CAROL will make it harder as you get fitter, and if you’ve been on vacation and aren’t where you were when you left, CAROL will make it easier.

Over the course of eight weeks, 32 individuals were divided into two groups to assess the effectiveness of CAROL’s workouts and compare them to current government exercise guidelines.


Safety in the saddle

CAROL’s ultimate goal is for people to have healthy hearts. CAROL includes an integrated heart rate monitor and built-in safety algorithms that will warn you or even cancel your ride if something unusual is noticed.

Scientists meticulously created and tested CAROL’s maximum intensity sprint routines to give you enough time to recover so that your blood pressure and metabolism return to normal after pushing to your intensity limits.

On a CAROL bike, you’re in good hands as you go all-out for optimum results. The commercial-grade frame can endure the most extreme forces, and the freewheel clutch allows for safe explosive sprints with quick acceleration and deceleration.


Personalized design, personalized service

CAROL is the world’s easiest and most basic exercise system.

The workouts are appropriate for people of all ages and fitness levels. CAROL includes numerous safety safeguards, and its quick intensive exercises are less taxing than lengthier interval fitness regimens.

Whatever your fitness objectives, CAROL bike can assist you in achieving them, and as part of the service, we provide personalized consultations with our customer success team.

CAROL bike workouts health benefits 

Become more fit and healthy

CAROL is the most efficient technique to increase your aerobic capacity, resulting in leaner, fitter, and healthier results.

Reduce your weight

The ‘after burn’ feature on CAROL burns more calories after you get off the bike than it does while you’re on it. Insulin sensitivity improvements help you become more metabolically versatile and efficient at burning fat for energy.

Take care of your health

CAROL’s workouts are shorter than other forms of exercise, putting less effort on your body while yet giving various health advantages.

Variety is better

CAROL may be used with Peloton Digital and Apple Fitness+ programs, and it will soon allow you to participate in a Zwift or Kinomap race.

THE SCIENCE BEHIND CAROL-Science and technology combined

4 academic collaborations.There have been several peer-reviewed studies.An active research and development program, as well as a data science staff. CAROL pushes the boundaries of HIIT research in academia.

How does CAROL bike work?


Step 1 – Warm up

It takes 2 minutes. Slow pedaling will prepare you for the sprints.

Step 2 – Sprint

It just takes 20 seconds. Within 10-15 seconds of your initial sprint, your glycogen will be depleted, and chemicals that signal other changes will be released.

Step 3 – Recovery

It only takes 3 minutes. Recovery is critical for a successful second sprint.

Step 4 – Sprint

It just takes 20 seconds. The molecules released during the initial sprint are now triggered, resulting in a series of changes that result in a fitter, leaner, and healthier you.

Step 5 – Cool Down

It only takes 3 minutes. These three minutes lower your blood pressure and return you to “normal” after all of your hard effort. CAROL provides mindfulness breathing guides that will help you de-stress in minutes and get back to whatever you were doing.

Prioritize quality over quantity

CAROL combines science, technology, and artificial intelligence to provide you with the greatest outcomes in the shortest time possible. For a hectic lifestyle, this is the ideal scenario.

CAROL automatically provides the correct resistance at the right speed at the right time for your fitness level, based on the scientifically proven benefits of REHIT (Reduced Exertion High Intensity Training) and fast glycogen depletion.

As a result, maximal exertion levels during a CAROL sprint are roughly three times higher than in HIIT spin courses, and it provides more health and fitness benefits in a fraction of the time as compared to traditional exercise.

What is REHIT?Maximum vs. high intensity

In a nutshell, REHIT is the distinction between high-intensity training and maximum-intensity training.

It’s based on the idea that fewer, shorter bursts of maximum intensity create better results, and it uses two 20-second all-out bursts to swiftly drain your thigh muscles’ glycogen stores. Because you spend less effort than in regular HIIT sessions, the phrase Reduced Exertion High Intensity Training was coined.

Previously, the REHIT effect could only be achieved in a lab setting. You may now enjoy the benefits in the comfort of your own home, thanks to CAROL.

CAROL bike Rapid glycogen depletion

Survival of the fittest

The ‘fight or flight’ response is triggered by CAROL’s short maximal intensity sprints. This evolutionary signal warns your body that in order to survive, it must adapt and become fitter and stronger.

Your muscles are forced to consume muscular glycogen – your body’s emergency energy reserve, which is sugar stored in the muscle – as fuel due to the rapid demand for energy. Glycogen depletion boosts aerobic capacity, resulting in increased fitness.

Two 20-second sprints by CAROL decrease glycogen reserves by 25-30%. You’d have to run for 45-60 minutes to reach that level of fitness. CAROL is the simplest and quickest approach to drain glycogen and become fitter, leaner, and healthier.

CAROL bike Results confirmed by research

 ACE study-Get twice the gains of regular exercise

Over the course of eight weeks, 32 individuals were divided into two groups to assess the effectiveness of CAROL’s workouts and compare them to current government exercise guidelines.CAROL’s eight-week approach can lower your metabolic health risks by 62% and double your gains in all health and fitness indicators.

A peer-reviewed study published by the American Council on Exercise (ACE) confirmed CAROL’s greater results over typical exercise regimens .

You can get the following benefits by using CAROL for just eight minutes 40 seconds three times a week for eight weeks:

– The risk of metabolic illness (MetS Z-Score) was lowered by 62%.
– A 12 percent boost in heart and lung fitness
– A 5% reduction in blood pressure
– Triglycerides (a type of fat found in the blood) were lowered by 10%.
– HDL (good cholesterol) increased by 6%.
– A 2% reduction in blood sugar

You’ll burn twice as many calories on CAROL for every minute you spend exercising than you would with traditional workout. Because CAROL’s “after burn” burns twice as many calories after your workout as it does during it, you’ll burn twice as many calories.

Improved insulin sensitivity, which helps you become metabolically flexible and access and burn your body’s fat stores, has also been found to assist you in studies.

As a result, your rider’s high will endure long after you’ve completed your workout.

Get Free Delivery in the US on your CAROL Bike!

Experiment with the BBC for 5 Weeks

Over the course of five weeks, six participants in a real-world work context use CAROL and track their health development.

Get Free Delivery in the UK on your CAROL Bike!

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