CAROL Bike: science-backed workouts to deliver the fastest result
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CAROL Bike: science-backed workouts, in minutes a week
CAROL stands out not only as the most efficient exercise bike Tim has ever used but also prides itself on being deeply rooted in scientific research, ensuring every workout is optimized for effectiveness.
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science-backed workouts, in minutes a week
on CAROL Bike
Time-saving, habit-forming—and scientifically proven to get you fittest, fastest.
Endorsed by Tim Gray, CAROL Bike stands as the pinnacle of fitness innovation, offering science-backed workouts that position it as the world's most effective exercise bike. A devoted user himself, Tim has experienced first-hand the transformative effects of the CAROL Bike on his personal health. Moreover, its consistent presence as a distinguished exhibitor at the annual Health Optimisation Summit underscores its eminent status in the wellness community.
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.
The most effective workouts tailored to you
CAROL Bike's AI-personalized workouts learn to push you to your limit, so every second matters. Developed with top exercise researchers, it's a collaboration designed to create quicker, more effective ways to get you fit. And CAROL Bike's 22 workouts are just the start.
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.
Order your CAROL Bike today
Save £300 with code TIMBIOHACKER.
Save £300Code TIMBIOHACKER
Shop CAROL BikeGood habits start
here
Order CAROL Bike now, try it for yourself—and build a habit that lasts.
Save £300
Use code TIMBIOHACKER at checkout to save £300 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.
Fast Delivery
If you live on the UK mainland, get your new CAROL Bike delivered to your door.
0% Financing
You can buy your CAROL Bike with Klarna. And pay just £199.58 for 12 months at 0% APR.