Exercise bikes have long been a favourite piece of equipment for exercising but now they are becoming hi-tech.
BBC Click’s Lara Lewington put the artificial intelligence bike, CAR.O.L to the test.
The bike makes use of high-intensity interval training (HIIT), based around the concept that two 20-second sprints within an eight-minute gentle cycle are just as good for you as a 45-minute run.
But what is it like to use and how does the workout really feel?
See more at Click’s website and @BBCClick
