20081018_2018 Atop the Xian city wall. Looking north from the south-east corner. As of 2008, hiring a bicycle for 100 minutes costs 20 kuai, along with a 200 kuai deposit. I saw bicycles available for hire both at south gate, and at east gate. It took me just short of 100 minutes for me to ride the 13 kilometres, including rest and photo stops. It is a bumpy ride!