We are 3 French people planning to drive by motorbike from Delhi to Paris this summer.
We are currently planning to cross China from Khunjirab pass in Pakistan to Irkestam in Kirghistan in July 2018. Our date are not fixed yet, so if someone else is interested, we would be happy to share the (crazy

The crossing dates could be :
*9th-13th July, Monday to Friday
*or 16th-20th July, Monday to Friday (most probably)
*or 23th-27th July, Monday to Friday.
I discussed with 5 to 6 different agencies and in my opinion Navo Tour (http://www.navo-tour.com/en/) is the most reliable with the best prices. But we are open to any other suggestions.
I hope that we will find other travelers here !
We are in the process of asking visa, I'll share our experiences on the forum in the dedicated topics
Violaine