Not a 250 but still impressive for a basically stock Enfield. https://royalenfield.com.au/news-announcements/royal-enfield-smashes-land-speed-record/
There was a guy doing a record attempt in the 50cc; forget whether it was it 170kph or mph. 170mph is one quick scooter!
And, this is why cross winds are scary...even if you're in a car. https://www.facebook.com/video.php?v=1373333489695266 Also, some more about the Afflick 50cc bike. The dad, Warren, might be familiar to some of us older drag racers as he used to race in the 'top fuel bike' class back in the day. He had one of those popular twin-engine bikes running a pair of Triumph motors.
Wasn't so much the constant wind, it was the break up of the air when he went past the parked vehicles that looked to upset everything. Good driving though.