Have to get the fairing first

and some cooler weather. I went down then up Welshpool Road last Saturday, before it got too hot, just to try and establish some sort of baseline speed. Here's the video
http://www.youtube.com/watch?v=TmTi27Et2Ygunfortunately, just before the start of the video, I accidentally reset all my computer functions, and couldn't remember what the wheel circumference was. (I'd painted it on the back of the computer for exactly that reason, but part of it wore away when I changed batteries). Worse, about half way down the piece of PVC pipe which carries my computer came loose (it's only a press fit) and bounced down the hill, still attached to the cable. I suspect the cable broke somewhere because when I got home the computer works, but won't show speed.
I know I've gone over 75 km/h down there (80 km/h speed limit), and over a 90 km trip I can do an average speed of about 18.9 kmh. It's over 20 km/h till I hit Welshpool road
Anyway, will keep you posted.
Joe
To acquire immunity to eloquence is of the utmost importance to the citizens of a democracy
Bertrand Russell