In the 1912 ACU six days trials, Mellor Jameson on an Enfield sidecar (for which nothing was impossible), gained all possible marks and won two "The Motor Cycle" cups (for private riders) in addition to a gold medal. H. Greaves and Bert Colver (factory riders) won silver and gold medals as well.
Alexander's was the place to find your Royal Enfield in Edinburgh and Glasgow in 1916. Today 113-115 Lothian in Edinburgh is a Pizza Hut. And 272-274 Great Western in Edinburgh is still a motorcycle store!