You'll likely need to arrange a rental bike through a MC tour company. They will arrange everything, insurance, temporary PRC DL since your overseas DL and IDP are not valid in PRC. Usually as a tourist though, you would likely need to ride with a guide provided by the MC tour operator or else ride on a organised tour. There are other possible options, some of which may involve illegal activities - which I believe should not be promoted or supported on MCM, as such activities impact all foreign riders in PRC and motorcycling in general - which faces enough discriminatory regulations and practices already!

If one wants to ride a MC here, do so legally even if to do so might prove challenging.

To get started try using the MCM seacrh engine near top right corner of the MCM webpages or here else you may wish to try searching using the likes of a more general search engine e.g. Goog.le and just add 'mychinamoto' to the keywords.