Unless unrestricted all jap bikes are limited to 300kph(186mph)
On the limiters.
Where they not there then---------- when you crashed !!That might be a laugh. I am regarded as a safe and sensible pilot.
When out as a group we all carry radios
My mate has a vintage mini, the posh version with tiny fins.
That thing is fast. Well feels it, at 50mph it is hurtling along; kind of.