the Shanghai F1 circuit out in Jiading had an offroad track some years ago. might be worthwhile riding out to the F1 track to check it out.

near Binhai golf course out in Nanhui county (Pudong) is a "seaside resort" called Shanghai Magnolia Seaside Resort (Baiyulan Binhai Dujiacun). Just opposite was / is a go-kart track and right beside the go-kart track they had an ATV off-road circuit with ATV's for rent. not sure the go-kart / offroad ATV track are still out there and in operation.

ride safe, PAL