What a nice event. Mostly quiet roads, no nasty hills, the worst was the gradual climb up through Great Brickhill. CET Junior was fantastic - no need for turbo boost. Left Oxford at 7.15am from the Iffley Road stadium where Roger Bannister ran the first four minute mile, and arrived in Cambridge 15:45 in time to get the bus back we had booked at 16:30. Could have done without the headwinds, but found excellent little sandwich bar in Gamlingay for our final sustenance.