Unlock the key to a healthier, longer life

This free longevity guide reveals the best science-backed strategies to enhance your VO2max for better health and a longer life.

Unlock the key to a healthier, longer life

Discover the power of VO2max for lifelong vitality

Want to live longer and feel healthier? VO2max is the most important indicator of cardiovascular fitness and improving it can dramatically extend your lifespan. In this guide, you’ll explore:

  • What VO2max is and why it matters for lifespan
  • Proven strategies to boost your VO2max
  • The science behind HIIT and REHIT for maximum health benefits
  • How to incorporate VO2max training into your routine

Ready to extend your lifespan? Download the guide now.

Download now to discover how small changes can make a big difference in your long-term health and vitality.

Scientifically proven to get results.

CAROL Bike was developed in collaboration with leading exercise researchers to create the shortest, most effective workouts possible.

Daily Mail

“A groundbreaking piece of exercise equipment.”

Wired

“After two weeks of riding the CAROL Bike, I ... love it.”

Forbes

“For those short on time, it’s worth the investment.”

Yahoo

“If you’re looking to revamp your at-home fitness lineup, CAROL Bike is here.”

The Sun

“It’s a game-changer for busy people.”

The Daily Beast

“Engineered to give you the most effective workout in the shortest time possible.”

Get fitter

Improve your fitness by 12% in just 8 weeks.

Live younger

Improving your VO2max by 12% is like turning the clock back on your age by 10 years.

Live healthier

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

Lose weight

You’ll burn more calories on a 15-minute CAROL ride, than a 30-minute run.

Train smarter

Why Reduced Exertion HIIT (REHIT) is the most effective workout.

Join our 35,000+ rider community

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

5 stars

Shauna Murphy

“Exercising smarter with CAROL is improving my health week after week. The AI personalization takes any guesswork out of my workouts, so I continue to be challenged and exceed my goals. I am a powerful example of CAROL Bike’s effectiveness!”

5 stars

Joel Evan

“The most significant barrier for me and my busy clients is TIME, and CAROL removes that; in just 5-10 minutes, you get a cardio workout equivalent to 45 mins. Absolute game-changer!”

5 stars

Andrea Miller

“CAROL has been a game changer for me. The REHIT Intense ride is revolutionary in the fitness realm. It’s the most effective way to get the fittest, the fastest.”

Real riders, real results.

All rider reviews

Fitness score 49.2 · +9%

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 MyersCAROL rider for 4 years 3 months

Fitness score 36.3 · +52%

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 MorenoCAROL rider for 5 years 6 months

Fitness score 41.6 · +12%

In just 4 months, my VO2max has increased by about 12 points, and my heart rate has decreased by 10 bpm. For someone with a history of heart issues, these improvements are huge!
Matt NgyenCAROL rider for 4 years 4 months

From the community.

More rider stories

The 5-minute cardiovascular anchor

Melini’s story: the science sold her, the results kept her riding.

A personal benefit of better cardio—Mark’s story

At 52, Mark blamed erectile dysfunction on age. Better cardio changed that — and his confidence with it.

It clears my head completely.

Stanislav boxed for years and found most modern workouts too soft. The mental reset surprised him most.

Make every second count.

Join our 35,000+ rider community.

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