Nice page elk and thanks for the info. I used to take my SO service dog for a run on a razor scooter. A 60lb high strung Border Collie mix. It was a wild ride. He is old and retired now with hip problems...I've got my own dog now, an Aussie mix. She can play ball all day but a half hour after we've been walking, she starts trailing behind. My SO tried taking her out with the wheelchair and she just sits down . It would be cool if she had an interest in running, but oh well.