I've once got up about 25kph for about 15 seconds

Not bad you may say, but this was 14 years ago and I had no PJ's

I was doing that speed on a tread mill

The stupid time keep called out the wrong time and I maxed out the speedo and was just about flying ( 7m/step ) !
That the momment I'm still building up speed but I hoping to get up there and hold it !