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Good habits start here
CAROL Bike vs other bikes
CAROL Bike gives you the shortest, most effective workouts—backed by science. It’s the world’s first home REHIT exercise bike. Delivering the same results as a 45-minute run—in just 5. See how CAROL compares to other bikes below.
How CAROL compares vs other bikes
CAROL Bike was built to make optimal health and fitness easier for everyone. With science-backed workouts proven to deliver results—and save you time.
| Workouts | CAROL BIKE | PELOTON BIKE + | PELOTON BIKE |
|---|---|---|---|
| REHIT – most effective cardio backed by science |  |
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| Automated zone-based training | |
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| Virtual outdoor rides and races (e.g. Zwift) | * |
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| Studio cycling classes | * |
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| Time to get or stay fit per week | From 15 minutes |
From 75 minutes |
From 75 minutes |
*Requires separate subscription to third party application. |
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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 double the health and fitness benefits compared to normal exercise—in 10% of the 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.
Join our 35,000+ rider community
Read real reviews from riders who’ve experienced CAROL’s benefits themselves.
Robert Scarlata
"The REHIT program accelerates progress. The built in programming and recording of events creates the ideal feedback loop. It’s amazing how two 20 second blitz sprints can wear you out and the effect it has on VO2 progression. Would like to see a program that enables the rider to determine actual maximum heart rate; not having to depend upon an estimate. The CAROL chest worn heart rate monitor is a big plus as is the use of bike shoes with clicks."
Candace McCabe
"I noticed a problem with my bike a few days after setting it up didn’t think a whole lot about it but then it recurred. I called into customer service. I received a call back immediately with full instructions pictures and easy troubleshooting. Mario was absolutely amazing to work with to get my bike up and running optimally, even though the issue was user error. Thanks Carol for a great experience.”
Omid Vojdani
“I love my Carol bike, and the results I've been getting with it, even a few times a week, have been amazing. Legs are stronger and more stable, and I don't feel so much like an old man going up stairs anymore! I had an issue with the tablet not charging, and when I emailed them about it, they immediately got in touch with me, scheduled a phone troubleshooting session, and figured out the issue. They sent me the new parts, which were easy to install, and now everything works great. Such great support with amazing tech!”
Loved by our community
Hear how our community of scientists, fitness thought leaders and self-optimizers get the most out of CAROL every day.
Good habits start here
Order CAROL Bike now, try it for yourself—and build a habit that lasts.
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, get your new CAROL Bike delivered for free.
0% financing
You can buy your CAROL Bike with Affirm. And pay just $216 for 12 months.