I just completed a 5000km e-bike ride along the Yellow River from the sea outlet in Shandong to the headwaters in the Qinghai Tibetan highlands. Took me three months, travelling through Inner Mongolia.
It was a great ride and I'm surprised more people haven't done it as most parts of the river are accessible and easy to cycle (I'm retired and have osteoarthritis hence the e-bike). I stayed in hotels and guesthouses and had no problems finding places to stay.
Anyway, I wrote up some chapters on each stage of my trip and have posted them on my blog at josephrock.net
by DevelopmentLow214