What's your top speed?

+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.

+1 When I started to get fairly fast I would blast it everywhere and knacker myself out and probably be about 2 minutes quicker. Since then I try to flow through junctions, timing traffic lights and roundabouts.