Your exclusive IHRSA discount—get $500 off each CAROL Bike. Contact Us.

Biohacker approved

CAROL Bike: Dave Asprey’s
cardio of choice

Dave Asprey, the father of biohacking, names CAROL Bike as the ultimate cardiovascular exercise hack in his book Smarter Not Harder. CAROL isn’t just the smartest, most effective exercise bike he’s tried—every workout is backed by science too.

 

Save $100 with code DAVE.

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Time-saving, habit-forming—and scientifically proven to get you fittest, fastest.

CAROL’s science-backed workouts make it the world's most effective exercise bike. In fact, Dave Asprey is such a believer in the cardio biohacking power of CAROL that he mentions it as his cardio of choice in his book Smarter Not Harder. You'll also find CAROL Bikes at all of Dave Asprey's Upgrade Labs, which are the world's first Human Upgrade Centers.

Play Video

Listen to Dave's podcast with Ulrich Dempfle, CEO and co-founder at CAROL

Dave Asprey talks with CAROL CEO and co-founder, Ulrich Dempfle, about the scientifically proven benefits of CAROL Bike.

 

“It’s the rapid onset of glycogen depletion that makes the difference. So it’s exactly that slope of the curve that releases the signaling molecules that tells your body it has to get fitter and stronger.”  – Ulrich Dempfle, CAROL CEO

What sets CAROL
Bike apart?

Shortest, most effective workouts

Just 5 minutes, 3x a week. Scientifically proven to deliver results and designed for time-poor people.

Personalized to your fitness and goals

CAROL Bike's AI-personalization makes it suitable for any age and fitness level.

Significant results in 8 weeks

CAROL Bike is proven to improve your VO2max by 12% in just 8 weeks, effectively turning back the clock by 10 years on your physical fitness.

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

Your results,
supported by
science

Get Fitter

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

Save Time

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

Live Healthier

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

Live Younger

Improving your VO2max by 12% is like turning your body clock back 10 years.

Join our 25,000+ 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!”

More on Community

Good habits start
here

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

Save $100

Use code DAVE 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, 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.

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