Thanks for the replies so far.

You might want to look at what details you need to get a visa if your going to Xinjiang.

We have to get a letter of Invitation from someone living in Xinjiang to get a visa for Xinjiang.Not a problem just a inconvenience.
Are you sure about this bigdamo? I have never come across this before and can't find any information about it. I thought it was just Tibet than needed an extra permit.

Anybody have any favourite dual-sport Chinese bikes they want to recommend? I am happy enough with a 250cc for this short trip, maybe even make do with a 125cc. What do you suggest?
More questions to come as I think of them. Thanks.