i went on the lincolnshire wolds run last year, there was just about every make of bike you could think of, old, modern and everything in between.
heres a link, hope it works ok
http://www.woldsrun.co.uk/2006.htm
there was a gang of rockers on their goldstars and mods on their scooters, no battles for old times sake though, to old and wise maybe :-D
the oldest bike and riders combined age was 158years, he was on a 1914 douglas.
there are some good stillls and videos of the bikes, hope you like them.