The Bike that gets you fittest, fastest

The most effective workout

CAROL Bike is engineered for rapid fitness gains. Its signature REHIT workout can boost your VO2max by 12% in 8 weeks. The routine involves 2x 20-second all-out sprints, along with warm-up and recovery, totalling just 5 minutes, three times weekly. Experience enhanced fitness, time savings, and a more youthful life with CAROL Bike’s REHIT approach.

What is VO2max?

VO2max, an acronym for “Volume, Oxygen, Maximum,” represents the pinnacle amount of oxygen your body can consume during exercise. As your fitness level improves, your VO2max also increases, indicating enhanced oxygen utilization during physical activity.

VO2max and longevity

VO2max gauges how much oxygen your body uses during exercise, with higher levels indicating better fitness. After 30 years old, VO2max tends to decrease by around 10% per decade. CAROL Bike has been scientifically validated to raise your VO2max by 12% in only 8 weeks, essentially rolling back your age by a decade.

How the REHIT adaptation pathway works

CAROL’s AI-driven personalization and Instant Resistance work in tandem to propel you towards your maximum potential during sprints. Similar to the body’s response in a ‘fight or flight’ scenario, these features compel your muscles to activate roughly 25-30% of stored muscular glycogen, which serves as your emergency energy reserve. This process also triggers the release of crucial signaling molecules (AMPK and PGC-1a) that signal your body to embark on a journey towards enhanced fitness and strength.

This transformative journey involves the growth of additional mitochondria, an expansion in your blood plasma volume, and fortification of your heart. As a cumulative effect, your aerobic and anaerobic capacities witness remarkable increases, ushering in a new level of performance.

“CAROL is the only bike that accurately replicates REHIT outside of the labs. This scientific exercise cannot be done on a regular bike because it requires the supra-maximal resistance tailored to each person’s physiology.”

Dr. Niels Vollaard, PhD, Exercise Physiology Researcher, University of Stirling