Riding a manual is something that most riders think of as an advanced skill in and of itself, so to see someone shoot for holding one for a sustained ... keep your front wheel off the ground ...
and a variable geometry which allows it to steer properly despite just having one wheel. It does this by allowing the rider to shift their position relative to the wheel, instead of the seat ...
The time is measured from the back wheel of one rider and the front wheel of the following rider. If the gap is three seconds or more, the second rider would be given a new time gap. However ...