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CAROL Bike workouts

Scientifically-proven to get you fitter, faster.

CAROL Bike’s AI-personalized workouts learn to push you to your limit, so every second matters. Developed with top exercise researchers and scientists like Dr. Neils Vollaard and Prof Lance Dalleck—it’s a collaboration designed to create quicker, more effective ways to get you fit. And CAROL Bike’s 20 workouts are just the start.

Your perfect
workout, backed by

Get fitter

Improve your cardio fitness by 12% in just 8 weeks.

Live healthier

Reduce your risk of type 2 diabetes by 62%—and blood pressure by 5%.

Lose weight

66% of calorie-burning with CAROL happens after your workout, maximizing your metabolism.

Every CAROL Bike

CAROL Bike’s range of scientifically-proven workouts make it the world’s most
effective exercise bike. Check them out below.

Reduced Exertion HIIT (REHIT)

CAROL Bike’s signature workout—the shortest, most effective cardio that can be done in just 5 minutes. It’s scientifically validated and informs the AI-personalization of all other workouts.

Choose from five REHIT ride variations.

Fat Burn

A time-efficient HIIT workout scientifically proven to burn twice as many calories as moderate intensity exercise.

Choose from three Fat Burn rides consisting of 30—60 sprint cycles.

Fat Burn 60

Proven to burn twice as many calories than regular exercise.

Fat Burn 45

Fewer sprints than Fat Burn 60, but with similar fat burning benefits.

Fat Burn 30

Fewest sprints of the Fat Burn rides, but still providing substantial benefits.

Free Rides

Work out your own way with adjustable timing, intensity, resistance, and target power.

Free Rides can also be done whilst using a range of other fitness and entertainment apps like Peloton Digital, Zwift, YouTube, Netflix and more.

Regular Free Ride

Control timing and intensity, like a regular exercise bike.

Custom Rides

Sprint interval workouts backed by science. Offering different sprint volumes and durations compared to CAROL’s signature REHIT rides.

Fitness Tests

A range of workouts that measure your Functional Threshold Power (FTP) and Maximum Aerobic Power (MAP)—to accurately calculate your Fitness Score.

Ramp Test

Used to measure Functional Threshold Power (FTP) and Maximum Aerobic Power (MAP).

20-Minute FTP Test

Measure your Functional Threshold Power (FTP) with our 20-minute test.

Workout recommendations

Reach your health and fitness goals faster by building your perfect regime with CAROL Bike.

Endless Entertainment

CAROL Bike integrates with entertainment apps like Netflix, Disney+, YouTube and more.


Train in Zone 2 for optimal longevity benefits.

Minimal Time

Short on time? Utilize the shortest, most effective workout.

Weight Loss

Burn twice as many calories as regular exercise with Fat Burn rides.

View all Recommendations

Got a question? Let’s book a

All our experts have MSCs in Exercise Science, and they’re here to answer your questions. Whether it’s about these workouts, or the science behind CAROL Bike, whatever’s on your mind—we’re here for you.

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