just the dude said "Congratulations Simon, another individual who fails to read the OP.
Ridiculous post you say? A 30 ton vehicle passing you and your family at 120km/hr plus? You can pound salt...
Here's your sign "
It's a ridiculous post because it never happened. Your making up a story to get some attention. I don't think you and your family were riding on your motorcycle.
If you had ever driven a semi you would know how ridiculous the claimed speeds actually are.