If you are a resident in China, then owning a legal bike should not be too much trouble. And I assume you'll be entering Mongolia at Erlenhot? Again not much toruble. Entering Russia you'll need to make sure all your registration docs are OK and you'll have to buy Russian Insurance at the border but that border is also pretty easy. I rode from Europe to Beijing going though Russia and the length of Mongolia finally entering China at Erlenhot (after an unsuccessful attempt at QiShi (SP)). E-Mail me if you need any advice or directions.
http://www.advrider.com/forums/showt...=Trans-Eurasia
Regds,
Jim
www.bmwsidecar.com