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A CrossFitter’s perspective—Michael Kummer

“It’s only 40 seconds of work, but the health benefits are the same as a 45-minute run” - Micheal details how CAROL’s efficiency complements his exercise regime.

Former professional sprinter, Michael Kummer, is a tech and healthy living enthusiast. He follows the CrossFit methodology, leveraging their variety of exercises and HIIT workouts to stay fit. Now a dedicated rider of over 2 years, Michael says CAROL Bike not only complements his exercise regimen, but makes him a better CrossFit athlete by improving his VO2max and aerobic capacity.

“Every time you mount the bike, you get a personalized workout that improves your health and fitness”.

5 minutes, 3x a week—CAROL Bike’s signature workout is proven to be the most effective cardio workout. CAROL’s science-backed workouts will:


  • Improve your cardio by 12% in just 8 week
  • Reduce your risk of type 2 diabetes by 62%—and blood pressure by 5%
  • Burn more calories in 15-minutes vs a 30-minute run

Michael stresses that you don’t have to be a CrossFitter to benefit from CAROL. CAROL’s short, AI-personalized workouts will significantly improve your health and fitness—regardless of your fitness level.

Read Michael’s full review of CAROL Bike here.

Biohacker Approved

Dave Asprey, the father of biohacking on CAROL Bike: “This is real!”

CAROL rider – Simone

Joining the CAROL community through a unique twist of fate, rider Simone shares how CAROL Bike has transformed her cardiovascular health in just 3 months.

Anthony Lively

Rider Anthony redefined his post-fatherhood fitness after discovering that effective workouts were possible in just 5 minutes with CAROL Bike.

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