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.