According to multiple sources, mini exercise bikes are effective for cardiovascular and aerobic fitness, and they can help prevent harmful health problems associated with a sedentary lifestyle. They are also compact and portable, making them easy to store and use at home or in the office. While they may not replace intense workouts, they are a good option for those with limited space or a limited budget (sources: [FitLifeFanatics](https://fitlifefanatics.com/do-mini-exercise-bikes-work/), [Fitness Pilots](https://fitnesspilots.com/are-mini-exercise-bikes-effective/), [Bodypusher](https://www.bodypusher.com/best-mini-exercise-bike/), [The Home Fit Freak](https://thehomefitfreak.com/best-mini-exercise-bikes/)).
A mini exercise bike is just like a regular exercise bike but without the seat, the handlebar, and the wheel.
A mini exercise bike might not be as appealing as a regular exercise bike but it is an exercise equipment nonetheless.
Yes, a mini exercise bike would definitely work, though not as much as regular exercise bikes. The advantage with these bikes is that you could be working in your office could still exercise and burn a small and steady amount of calories.