Dr. Gundry x CAROL Bike

Exclusive offer for Dr. Gundry podcast listeners

Save $100 on your CAROL Bike purchase with code GUNDRY.

“This is an anti-aging machine.”

Dr. Steven Gundry

Cardiologist, heart surgeon, medical researcher, and author.

The shortest, most effective workouts—backed by science

Developed with leading exercise researchers, CAROL Bike offers science-backed workouts proven to improve key health and fitness indicators in just minutes. In fact, you can achieve superior fitness benefits in 90% less time compared to steady-state cardio. It's the exercise of choice for leading health and fitness figures like Dr. Gundry—saving hours of time while achieving superior results.

What makes CAROL Bike special?

The shortest, most effective workouts

Our signature REHIT workout creates the most potent training stimulus with just 2x20-second sprints. It’s scientifically proven to deliver superior health and fitness benefits compared to steady-state cardio—in 90% less time.

Personalized to your fitness and goals

CAROL Bike's AI-personalization means it's suitable for any age and any fitness level. Our AI learns to push you to your limit, applying automatic and instant resistance, to ensure your workouts are most effective for you.

Significant results in just 8 weeks

CAROL Bike is scientifically proven to improve your VO₂max by 12%—in just 8 weeks. That's like turning the clock back on your age by 10 years.

The Dr. Steven Gundry Podcast

Dr. Steven Gundry sits down with CAROL CEO and co-founder, Ulrich Dempfle, to break down the science behind cardio, efficiency, and why REHIT is the better approach for most people than Zone 2 training.

"People know how important exercise is. And somehow we don’t have the time. But folks, I can do it in my suit, so you, you can do this.” – Dr. Steven Gundry

Optimized for maximum results

CAROL was developed with top exercise researchers to deliver the shortest, most efficient workouts. All components have been meticulously engineered to provide the optimal riding experience. While offering more choice and versatility than most other smart bikes.

Get meaningful results in less time

CAROL Bike's short, effective workouts mean you can achieve superior health and fitness benefits compared to traditional exercise—in 90% less time. And the best part—it’s all backed by science.

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

Burn twice as many calories on CAROL Bike than regular exercise.

Save time

Get all the benefits of a 45-minute run in just 5.

Everett Myers

3 months

"I’ve been training for a half marathon and since adding CAROL Bike to my daily routine in the past 2 weeks, my VO₂max has gone up 5% already."

Everett Myers

3 MONTHS

49.2+9%

Fitness score

Dr Gabriela Moreno

3 months

"My CAROL Bike has been great to help me achieve greater fitness and power without the time investment but with all the fun!"

Dr Gabriela Moreno

1.5 YEARS

36.3+52%

Fitness score

Phil Cox

3 months

"It's easy to fit a quick 5-minute workout in, especially if you don't need to shower after your workout!"

Phil Cox

5 MONTHS

32.9+9%

Fitness score

Ann Meyers

3 months

"It is a keystone health habit builder that not only makes you feel better but makes you more conscious of acting in healthier ways throughout the day."

Ann Meyers

3 MONTHS

26.6+12%

Fitness score

Peter Bauman

3 months

"Dropping 2.6% bodyfat in ~8 weeks for someone who prioritizes a healthy lifestyle is no easy feat. I’d go so far as to label it as a gamechanger."

Peter Bauman

9 MONTHS

32.3+5%

Fitness score

Germany Mayfield

3 months

"If you’re looking for a quick, effective biohack to improve your cardiovascular health, increase your endurance in an efficient way... this seems to be the move."

Germany Mayfield

9 MONTHS

34.3+12%

Fitness score

Everett Myers

3 months

"CAROL has been a really great way for me to keep active, for me to keep moving without putting too much stress on my body."

Everett Myers

3 MONTHS

30.3+10%

Fitness score

Real riders, real results.

Our riders are at the heart of everything we do. Discover the real impact of CAROL Bike straight from those reaping the benefits every day.

Michael Kummer CAROL rider for 3 years

Christy Lemire CAROL rider for 1 year

Joel Evan CAROL rider for 2 years

Amy Stanton CAROL rider for 1 year

Join our 30,000+ rider community

Read real reviews from riders who’ve experienced CAROL’s benefits themselves.

From our community, who know us best.

Hear how our community of scientists, fitness thought-leaders and self-optimizers get the most out of CAROL Bike every day.

Biohacker Approved

Dave Asprey, the father of biohacking on CAROL Bike: “This is real!”

1 MIN READ

“I love my CAROL Bike!”

Performance psychologist Dr. Michael Gervais.

1 MIN READ

Benefits of a 45-minute run—in just 5

Hear from Human Performance Consultant Ben Greenfield, on the habit of working out.

1 MIN READ

“Most Innovative Exercise Bike 2022”

As awarded by Garage Gym Reviews, the #1 trusted home gym equipment review site.

1 MIN READ

Good habits start
here

Order CAROL Bike now, try it for yourself—and build a habit that lasts.

Save $100

Use code GUNDRY at checkout to save $100 off your CAROL Bike purchase.

100-Day Home Trial

Try CAROL Bike at home for 100 days. And if it’s not for you, return it and get a refund.

Free Delivery

If you live in the mainland US or Canada, you can get your new CAROL Bike delivered for free.

0% APR Financing

You can buy your CAROL Bike with Affirm. And pay just $207.92 for 12 months at 0% APR.

Dr. Gundry x CAROL Bike

Exclusive offer for Dr. Gundry podcast listeners

The shortest, most effective workouts—backed by science

What makes CAROL Bike special?

The Dr. Steven Gundry Podcast

Optimized for maximum results

Get meaningful results in less time

Real riders, real results.

Join our 30,000+ rider community

From our community, who know us best.

Good habits start
here

Explore

Support

About Us

Stay in the loop

Stay in the loop

Heart Rate Armband — $139

Heart Rate Chest Belt — $75

Phone Holder — $49

Dr. Gundry x CAROL Bike

Exclusive offer for Dr. Gundry podcast listeners

The shortest, most effective workouts—backed by science

What makes CAROL Bike special?

The Dr. Steven Gundry Podcast

Optimized for maximum results

Get meaningful results in less time

Real riders, real results.

Join our 30,000+ rider community

From our community, who know us best.

Good habits start here

Explore

Support

About Us

Stay in the loop

Stay in the loop

Order Summary

Upgrade Your Ride

Heart Rate Armband — $139

Heart Rate Chest Belt — $75

Phone Holder — $49

Subtotal

Good habits start
here