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... See more
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Review summary
Created with AI, based on recent reviews
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Reviews shaping this summary
I've only been using it for three weeks, but the feedback is easy to comprehend. I was skeptical about doing high-intensity REHIT three times per week. Just two 20-second sprints each session. Well... See more
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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 ins... See more
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Love the bike. Even on a busy day I can convince myself to take 10 minutes out to do a workout. I feel the positive impact on my resilience. It's evident that Carol Bike has created a company cultu... See more
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Company details
Written by the company
CAROL is the smartest, most effective exercise bike—with workouts backed by science. CAROL Bike learns to push you to your limit. With each short, AI-personalized workout your optimal resistance is applied instantly, so every second matters. Scientifically-proven to give you the most effective workout.
Contact info
London, United Kingdom
- +44 20 3808 5137
- marketing@carolbike.com
- carolbike.com
4.5
Excellent
450 reviews
Replied to 100% of negative reviews
Typically replies within 1 month
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Best decision
Super happy that we made the decision to purchase the Carol bike. We are NZ based and still the delivery was quick and smooth. Customer service communicated with us all the way through from thinking about buying the bike to setting it up with us. I am super impressed with Carol’s lovely and quick customer service and am super stoked about the bike too!
June 19, 2025
Unprompted review
Reply from CAROL Bike
Margaret, thank you for your review.
Wishing you all the best on your health and fitness journey in NZ! You know where we are if you ever have any further questions.
Happy riding!
Love the bike
Love the bike. Even on a busy day I can convince myself to take 10 minutes out to do a workout. I feel the positive impact on my resilience.
It's evident that Carol Bike has created a company culture that aspires to excellence at all levels of the organization, from bike design and continuing improvements to customer service.
If you need help with anything, real humans reply, go out of their way to be helpful, and follow up.
June 1, 2025
Unprompted review
Reply from CAROL Bike
Tony, thank you so much for your review.
With CAROL Bike's short, efficient workouts, it encourages riders to build a fitness habit that actually lasts. The science shows your cardio fitness should improve by 12% in just 8 weeks, doing 3x5-minute rides weekly—so it's great to hear you're already feeling a positive impact from the bike.
Our team aspires to embody the innovative and best-in-class product we have developed with CAROL. Thank you for appreciating the hard work the team does behind the scenes.
Wishing you all the best in your health and fitness journey!
Reply from CAROL Bike
Greg, thank you for your review.
We're delighted to get you on your bike as quickly as possible. If you ever need anything else, please don't hesitate to reach out to us again.
See you on the leaderboards!
still learning
still learning. Matt was helpful. I am excited to do more with the bike. I am a beginner and never liked bicycling previously.
April 28, 2025
Reply from CAROL Bike
Thank you for your review, Pamela.
CAROL is unlike any other bike on the market—offering the shortest, most efficient workouts. We're confident you'll get to grips with the various workouts quickly and start experience the powerful benefits our bike has to offer.
Happy riding!
Installation was straight forward
Installation was straight forward. I like the debit workouts. Am disappointed with the lack of instructions on how to connect with other apps to get video rides or watch Netflix.
April 28, 2025
Reply from CAROL Bike
Sorry to hear this, Beckay. Our customer support team are best in class and always available to help with any questions you might have. Our best support expert will reach out to you with instructions on how to connect with other apps such as Netflix shortly.
In the meantime, please don't hesitate to contact us with other questions at support@carolbike.com.
Best Hiit and Rehiit workouts
I don’t have hours to spend on a treadmill or in a gym. This bike gives me the opportunity to get intense workouts in 10-15 minutes 3 times a week. I love it.
April 22, 2025
Reply from CAROL Bike
Keith, thank you for your review.
CAROL provides superior health and fitness benefits in 90% less time than traditional, longer-form cardio. Great to hear you're saving so much time on your workouts—the key is working smarter, not harder.
Happy riding!
Perspective of an 80 year old after over sixty years
The key is the intensity of the short work out between rest cycling . My concern is how I can continue with my aerobic work out of one hr a day in zone 2. I often go up to zone three so I wanted to add on the intense work out of CAROL bike. I am eighty years old and have been involved with fitness since a teenager. I have always done my work outs using pulse control using POLAR. It appears that your work out is having a direct effect on my muscles in the stomach area. For older people that is critical because older americans are spending time working on the extremities when it is obvious that to extend your quality of life years, the gut muscles are key. Therefore work inside out to the extremities rather than wasting all the time just doing aerobic work. I base this on over sixty years of working out using pulse and zone work outs. the missing piece as I got older is work first on your trunk muscles rather than legs and arms. CAROL intensity workouts I find are perfect for that critical piece.
April 17, 2025
Reply from CAROL Bike
Thank you so much for your review, Daniel.
Your experience and insight in fitness is very valuable - thank you for sharing it. At it's core, CAROL offers short, efficient workouts that maximize cardiovascular results in minimal time—but it also offers other benefits like you mentioned. Utilising CAROL in this way is a great testimonial to the effectiveness of the bike.
Keep up the great work, Daniel. Will be keeping an eye out for you on our leaderboards!
The ai technology is amazing but
The ai technology is amazing. I can get a great workout in 10min or less.
It is nice to be able to use other apps like Netflix but you only have access to free ride while doing that. It would be nice to still have other ride modes accessible while using third party apps.
The bike frequently struggles to stay or get connected with Apple Watch. Fixing these small issues would take my review to a 5/5.
April 17, 2025
Reply from CAROL Bike
Ryan, thank you for your review.
CAROL provides the shortest, most efficient workouts backed by science, so it's nice to hear you're getting great workouts from it. As a bike at the forefront of innovation, we are always looking for ways to improve our rider experience, so thank you for sharing your feedback. We will take it on board and look to implement these updates in the near future.
In the meantime, do let us know if you have any other feedback or questions.
Happy riding!
Would buy again
Love this bike and the programs…been using it 2-3x/week and can tell a difference. Would like to see some more interval programs but am sure they’ll be added. Delivery was excellent. Would definitely buy it again.
April 14, 2025
Reply from CAROL Bike
Thank you for your review, K Martin.
As you may know, using CAROL just 3x a week for 5 mins can significantly improve your cardio fitness, with studies showing it will boost your VO2max by 12% in just 8 weeks. We are always looking for new workouts to add to our library and will do so when new research is released. So keep an eye out!
Wishing you all the best in your health and fitness journey.
responded really quickly very helpful…
responded really quickly very helpful politely also felt like they cared
May 6, 2025
Unprompted review
Reply from CAROL Bike
Thank you for your review, Martyn.
When our riders speak, we listen. We're glad to get your questions answered quickly and politely. Wishing you all the best on your CAROL Bike journey!
Reply from CAROL Bike
Patsy, thanks so much for your review.
Wishing you all the best on your CAROL Bike journey!
Poor support help
I tried to get support setting up the tablet
and called the support number and asked
for a call on line and no response.
March 31, 2025
Reply from CAROL Bike
Ken, so sorry to hear this. Our system shows you left a voicemail on the 10th April and we emailed you back on the 11th April. Could you please check your junk/spam folder to see if the email came through?
Regardless, our best customer support specialist will be in touch again shortly to follow up. Please keep an eye out for their call and email. We hope to get you up and riding on your CAROL Bike as quickly as possible.
Reply from CAROL Bike
Margaret, thank you for your review.
Wishing you all the best in your health and fitness journey!
Carol bike is amazing
Carol bike is amazing! I love the science behind it and it really helps to increase effectiveness and efficiency while saving time. The only thing I don’t love about it is that sometimes it’s difficult to get logged in and sometimes the email necessary to login doesn’t get sent through to the inbox right away. Other than that, it’s amazing and wonderful and I love it.
March 4, 2025
Reply from CAROL Bike
Thank you for your review, Natalie.
Our time-saving workouts offer superior health and fitness benefits in less time than traditional cardio—we're glad to hear you're taking advantage of this! Thank you for your feedback on the email deliverability, we'll get our tech team to look into this and improve the experience for you and our community of riders.
In the meantime, please do reach out out us if you have any feedback or questions—we're more than happy to help.
Happy riding!
Love my Carol bike
The bike is very well built. I am still exploring the different programs but overall the experience is challenging with good support to navigate them. The app could get a little spring trimming.
March 3, 2025
Reply from CAROL Bike
Jean-Marc, thank you for your review.
Glad to hear you're enjoying our range of short, yet challenging workouts. We do have extensive performance metrics on the app which are designed to help riders track progress across multiple fitness areas—we appreciate your note about the app and we're always looking for ways to improve the experience.
All the best in your health and fitness journey!
Staff is always prompt to reply to any…
Staff is always prompt to reply to any questions that I have about my bike.
February 5, 2025
Reply from CAROL Bike
Marcia, thank you for your review.
With our scientifically-proven AI-powered workouts, there's a lot to take in. We are always here if you need any assistance and we endeavour to help you get the most out of your bike.
Happy riding!
Got help with a malfunctioning bike
Got help with a malfunctioning bike. Got timely advice, parts to fix my problem, a video on how to replace it, and got my bike working properly!
January 28, 2025
Reply from CAROL Bike
Thank you for your review R.J.
Happy riding on the bike that gets you fittest, fastest!
excellent communication.
January 31, 2025
Reply from CAROL Bike
Carol, thanks so much for your review.
All the best in your health and fitness journey!
Less accurate for people on heart rate controlling medication.
Bike was easy to assemble. If you are on medication to control your heart rate you cannot get accurate readings on your fitness level because you won’t be able to get to target heart rate. This was disappointing to me. I have to settle for trying to beat my previous power levels in order to see improvement. Couldn’t finish fitness test it just keeps starting again because your heart rate isn’t at target. Also the seat is not very comfortable.
January 10, 2025
Reply from CAROL Bike
Kelly, thank you for your review and for the feedback provided.
While it's true that certain medications may cause fluctuations for heart rate based results, CAROL Bike allows you to achieve a baseline Fitness Score and improvements can be measured from there. We'd recommend to use this metric and Power numbers to gauge your improvements. Unfortunately, since our fitness tests are heart rate based a person under these circumstances may not get to target.
If you'd like to discuss this in more detail, please do reach out to our fitness advisors. We offer a free consultation for you to get the most out of your bike. You can book a call here: https://meetings.hubspot.com/matthew-kohn/meeting-with-matt-carol/?uuid=eb5ebd7c-f2a2-4927-b1c4-3d97a9dd636e
I’ve had a mixed experience with CAROL…
I’ve had a mixed experience with CAROL Bike. Delivery and setup were smooth, and the workout itself can be effective. However, the bikes seem to have some quality issues—mine started squeaking loudly, requiring costly repairs. Customer support was initially responsive but became unhelpful when the warranty expired. The design could also be improved, as the seat and handlebars aren’t adjustable and the seat is quite uncomfortable. It has potential, but for the price, I expected better durability and support.
February 2, 2025
Unprompted review
Reply from CAROL Bike
Lynsie, we're sorry to hear you've had a mixed experience with us.
All CAROL Bikes are made with heavy-duty steel frames, designed and certified for commercial use, and comes with a 5 year frame warranty. If your bike is making a squeaky noise due to a fault with the frame, we will get this resolved for you. In any case, we'd love to provide further assistance and make your bike as comfortable as possible for you. Please can you email us at support@carolbike.com so we can get into contact with you again. Rest assured, we're determined to get this fixed for you.
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