Festival of 1000 Bikes

The Festival of 1000 Bikes is an annual event organised by the VMCC. Held at Mallory Park, it a similar event to the Coupes Moto Legende in that lots of classic bikes turn up and some are taken out on the track. This year's event was held in July and there's a report here.
I also found a gallery of photos, including this one of a much modified Vincent.

Details of next years event here.