I have an obaby zezu which is great in many ways. However I also have dogs which need long walks and on rough ground the front wheels bend If they hit a bump at the wrong angle and get stuck. I think I'm going to wreck it at this rate. I need a lightweight stroller that can handle a serious dog walk over rough ground. I've got a terrible back and wearing a baby carrier is murder. Dont want to spend a fortune on a blingy brand name as it will be getting dirty. Any suggestions?.