Not really sure how fast I could run, since I suffer with an unstable kneecap, so it doesn't really hold up to running...I do use a stepper, however, and get to do 88 foot movements in 20 seconds, I think (it's in my log somewhere); but 13km/h is great, a good way to save money on pertrol/gas and still get to your destination quicker than a car driver stuck in a jam
