I went riding with my younger brother.
I still don't trust the Ali Star Ratchet, so
I brought a genuine 36t as a backup.
It wasn't bad at first.
My brother said he liked the loud ratchet sound.
After about 15 minutes of downhill,
his ears seemed to be hurting, and he said something like "shouldn't we stop?".
The ratchet sounded noisy.
I thought, "This won't work..."
In the end..
I replaced it with a genuine 36t in the middle
and gave the 60t to my brother.
The loud ratchet sound I sometimes heard when passing by the Han River was good,
but it seems that was only for a short time.
After 5 minutes, it became annoying noise.
I guess I'll just stick with my usual 36t.