one wonders how carefully that thing was engineered (i.e. not just 'designed').
for example ... bearings that
can handle the heat generated at > 200 mph, stability (the eigenmodes of bicycle and
motorcycle stability are pretty complex and speed dependent), tyres rated for speed.
other stuff like ... expansion of the rims at speed causing premanent strain or breaking
anyway ... cojones of steel to ride that thing. impressive.