What about Shimano rotary cassette?

Okay.

1. Efficient exercise: Shimano's rotating flywheel adopts a rotating design, which can quickly increase the heart rate and strengthen cardiopulmonary function. It can also exercise multiple parts such as legs, buttocks, waist and core muscles. , to achieve the effect of full-body exercise.

2. Space saving: Shimano rotary flywheel is compact in size and takes up less space. It is suitable for placement in places with limited space such as homes or offices, making it convenient for exercise at any time.