How about using an indoor bike in the apartment?

pu1. I'm using Shawn Lee's, but there's nothing to make noise
I am riding well while watching TV

2017-10-20

OK

pu2. If you're worried about the noise between floors, you can buy something cheap at the yoga mat Daiso and use it
It's a bicycle, so there's nothing that makes noise

2017-10-20

OK