Excellent. Found out that the local Transport Management Organisation (TMO) which iwas set up to encourage intelligent commuting had arranged for some free bike fixing/ checking at the Marriott car park so I went there instead of work at 0800. Nice lady gave me a lift to the office from there.

Mech guy called at 1100 to say my bike is fine and come and get it. "It's old but you've looked after it, right?". Yip. Saved me £30. Happy days.