This is my journey from Wavell Way to Jewry Street. My average speed was 7.93 mph! This was not including me sat around at the traffic lights or starting and stopping the camera. I calculated this using this site: http://www.datedial.com/datAverage_Speed_Calculator.asp
Sorry if you find the video quality a bit poor but I had to put my phone inside a plastic pocket on the front of my bike bag.
Here is the map of the route: