Welcome to BYC Emryst! I have had this treadmill for about 4 years and have never really gone fast on it. The fastest I have ever used it is a 15 minute mile but mostly have set it at a 20 minute mile if I'm just watching TV or if I'm working on the computer I slow it down to a 40 minute mile. The treadmill is called a Healthrider. I bought it from the local Sam's Club for under $1,000. The only problem I had with it so far is when I had a power surge it blew the fuse. I should have had it plugged into a surge protector. The fuse is an odd size & I had to order a new one from somewhere overseas. Hope that helps with your question.