What's your top speed?

Not true, unless in a bylaw area, such as Richmond park. Speed limits on normal highways do NOT apply to bicycles :-)

Really? Hmmm...interesting. [strokes chin]

I know its a bit of a silly question but could i get fined if i break the speed limit?

See above.

But like, who cares. Top speed means fuck all if you can't flow through traffic. It's the speed you reach the destination not the fastest speed you hit on your way there.

+1 When I was bothering to log my rides I was consistently faster door-to-door fixed, but with much lower top speeds. I still notice it with nodders now - their speed fluctuates ridiculously, whereas I cruise (serenely) along at the same cadence most of the journey. It's like zen and shit.