Training at odd hours is hard. I am usually up at 4:30 am to get my bike rides done. My wife and kids are usually sleeping and going through training without waking anyone up is an accomplishment by itself. Luckily for me, this is usually not an issue. But if you live in an apartment or a smaller house where sound can travel easily, then noise or vibration can be an issue.
There are some things you can do to reduce the noise. One of them is using a lower gear. If you are using ERG mode, switching to the small ring, the flywheel will increase resistance and spin a lot slower to keep you at the same watts.
To demonstrate this, in the video above, I rode my Wahoo KICKR 2017 at 200 watts in the big ring first, then switched to the smaller ring. You will hear how quieter the trainer gets. Later I lowered the resistance to 100 watts and switched it back to the big ring. The flywheel had to spin at a much higher speed to keep the resistance low and keep me at 100 watts. The noise level increased exponentially.
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