The workouts
Scientifically-proven stationary bike workouts to get you fitter, faster.
CAROL Bike’s AI-personalized stationary bike workouts learn to push you to your limit, so every second matters. Developed with leading exercise researchers, every workout is scientifically proven.
Your perfect indoor bike workout, backed by science.
Get fitter in less time.
Improve your cardio fitness by 12% in just 8 weeks. CAROL Bike’s AI adapts every workout to your fitness level.
Live healthier.
Reduce your risk of type 2 diabetes by 62%—and blood pressure by 5%.
Lose weight.
66% of calorie-burning with CAROL happens after your workout, maximizing your metabolism.
5 rides
Reduced Exertion HIIT (REHIT)
CAROL Bike’s signature stationary bike workout—the shortest, most effective cardio, in just 5 minutes.

REHIT Intense: 2x20-second sprints
CAROL Bike’s signature workout—the shortest, most effective cardio.View workout

REHIT Intermediate: 2x15-second sprints
A variation of CAROL’s main workout with slightly shorter sprints.View workout
3 rides
Fat Burn
A time-efficient HIIT workout, proven to burn twice as many calories as regular exercise.

Fat Burn 30
Fewest sprints of the Fat Burn rides, but still providing substantial benefits.View workout
3 rides
Free Rides
Take control of your training. Adjustable timing, intensity, resistance and target power.
4 rides
Custom Rides
Sprint interval workouts backed by science, varying in duration and intensity.

4x4 Norwegian Zone 5 Intervals
Use as a challenging substitute for REHIT or Fat Burn rides.View workout
4 tests
Fitness Tests
Track your performance with tests that measure Functional Threshold Power and Maximum Aerobic Power.

Ramp Test
Used to measure Functional Threshold Power (FTP) and Maximum Aerobic Power (MAP).View test
5 guides
Workout recommendations
Build your perfect regimen and reach your health and fitness goals faster.

Endless Entertainment
Ride to Netflix, Disney+ or YouTube - entertainment that makes every session easy to start.View guide
Make every second count.
Every workout, AI-personalized to you.
