Well that didn't go according to plan.
I spent a chunk of the day continuing the rebuild of the Thorn tandem, then when the rain came on retired indoors to watch the finale of the 5th Tour de France stage. Then I got set up to ride up to Astwood (this includes printing out the timing sheets and signing on sheets). I got half a mile up the road, and found my chosen bike for the evening (my Cervelo P3) was making some loud unaccountable knocking noises. This sounded bad, and didn't appear to be due to the transmission, handlebars or seat, so I returned to the house and grabbed my other TT bike (my Cervelo P5). This entailed some hurried tyre inflation and a change of shoes (different pedal type - old Speedplay X-series). Then a mad dash up to Astwood. Of course, the level crossing was down, to my frustration!
