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15 Minutes a Week

CAROL is more than a bike. With revolutionary design, scientific workouts and an AI algorithm, it's the fastest, most effective way to get fit—in just 15 minutes a week.
Studies prove: 3x Reduced Exertion HIIT (REHIT) sessions a week – just 15 minutes – is the most effective workout ever.

The stages of Reduced Exertion HIIT (REHIT)

REHIT gives you the cardiorespiratory fitness benefits of a 45-minute run—in 90% less time. And that’s just the start. CAROL Bike gives you the shortest, most effective workouts possible—backed by science.

“’Lack of time’ is the most often cited reason for not exercising regularly. The short duration of CAROL workouts cannot be emphasized enough.”

Daniel Green

American Council on Exercise
A Simple Habit

New riders hit an average of 3.2 rides a week, in their first 100 days.

AI-Personalized Ride

CAROL Bike’s AI algorithm calibrates every moment on the bike to you.

Your Progress

CAROL Bike’s Fitness Score lets you track how your fitness is improving.

Your Favorite Apps

Seamlessly connect to apps like Zwift, Kinomap, Peloton Digital and more.

Endless Entertainment

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

Is it for me?

Find out whether CAROL Bike is right for you.

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