best places for Mountain biking in china

I have to make a plan to explore China at the end of this month after finishing my grand canyon bus tours from vegas. I want to enjoy there Mountain biking but here is problem is that I have no idea about it that which place is the best for enjoying this activity at there. I keen to know about it from you all and if you have personal experience then share with me frankly. I will wait for your replies.

China has plenty most beautiful and gorgeous places to enjoy mountains biking such as:

Badaling
Three Gorges
Mount Tai
Mount Emei
Zhangjiajie National Forest Park

I hope my shared information would be useful for you.