Hi Gbcb,
I have found a great cycling club called the flying hairy legs they do heaps of riding and most of their rides start on the Pudong side near Centennial(?) Park. Overall really nice guys and I have been in touch with quite a few of them.
THey seem quite strong and the riding should be fast!
I can't wait to go over and get riding - let me know if you want me to attach their website etc
Int'l