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Experience the bike of the future
“CAROL is one of the most unique and effective cardio equipment I’ve ever discovered.
You need to find a way to work out that fits you and your life. CAROL does that.”

 

Use ‘BEN’ at the checkout to get $100 off.

 

Listen to Ben’s podcast with Ulrich Dempfle, CEO and co-founder at CAROL

How to get the benefits of a 45-minute run in under 9 minutes (& a 12% VO2Max increase & 62% lower risk of diabetes): the new AI bike that is taking the fitness world by storm.

Listen to the full podcast

Shorter, smarter workouts

Great cardio workouts in 26 minutes a week

An 8 minute 40 second workout. 3 times a week. This is cardio without the dread, thanks to the science of REHIT, or Reduced Exertion High-intensity Interval Training.

Get in the best shape of your life in 8 weeks

In 8 weeks you’ll increase your cardiorespiratory fitness by 12%, reduce your risk of type 2 diabetes by 62% and give yourself an added 2 years of healthy lifespan.

Personalized workouts push you to your limits

CAROL’s AI calibrates and optimizes each ride for you. It’s like having a personal trainer right in your bike — CAROL knows exactly how hard to push you to get results.

Get double the results

Studies have proven that doing three REHIT workouts a week will give you double the health and fitness gains vs. five 30-minute moderate intensity workouts per week.

Get fitter

In 8 weeks, you’ll increase your cardiorespiratory fitness by 12% (measured by VO2max) — and see the difference in your endurance, especially when you get to the top of the stairs

Stay healthy

You’ll reduce your risk of type 2 diabetes by 62%, lower your blood pressure, triglycerides and blood sugar, and add 2 years of healthy life expectancy to your lifespan

Boost your metabolism

REHIT triggers the afterburn effect, burning twice as many calories, minute-per-minute vs. traditional exercise

Backed by science

CAROL’s revolutionary workout is based in the science of REHIT, Reduced Exertion High-intensity Interval Training.

This is HIIT, taken to the next level. Developed by scientists looking for the most effective, efficient workout possible.

It turns out that two 20-second, maximum intensity sprints are all you need for a great cardio workout. Those two sprints are like a switch — triggering a release of glycogen from your muscles that tells your body it needs to get fitter, now.

Read about the science behind REHIT

“You’re going to see a marked difference in your fitness, your health and your body investing only 26 minutes a week. 

This bike is clinically proven to give you the same cardio-respiratory and metabolic benefits as a 45-minute jog in under 9 minutes, with only 40 seconds of hard work.  

You don’t need to spend long hours working out to be in the best shape of your life. You need to work smarter, not harder. The CAROL bike does that better than anything else I’ve found.”

– Ben Greenfield

Get started with CAROL today

0% financing options available

Pay over 12 months with 0% financing available through Affirm financing.

Free delivery and 30-day trial

Experience the benefits of CAROL for yourself, risk-free with free delivery.

3-months free membership

Benefit from AI-optimized resistance, detailed performance metrics, and new workouts and features with CAROL membership.