Wow. I can't beat that.
I went 225 on an old piece-of-shit 82 Honda Sabre motorcycle. It could have gone faster, but logic kicked in and my brain said to my right wrist: "How long to you think these old cracked tires will last at this speed? Oh... Well, what do you think will happen at this speed when one of these tires comes apart? Oh..."
And then I slowed down to about 150. Then a wasp hit my neck, and I just about died anyway. Good times!