I just purchased a cheap sports bicycle and it came with a lock. Its a pretty bad lock so I decided to spend 30 rmb on taobao, the lock arrived, i locked it in my complex right outside my apartment and now the keys don't open it. They are crap quality keys, I shouldn't buy cheap stuff on taobao. I'm going to try and shimmy it open tomorrow morning with a flathead screwdriver then just use the lock it came with. If it gets stolen then so be it.