couple of guys locking up outside vinyl exchange, both white conversions with drops, on with blue rims, the other with odd coloured rims/tyres. oddly both brakeless but with no foot retention (except one, which had one clip on the right side).
Another couple of guys bombing down oxford road together, one on a Genesis Madison, another on a purple beast with a black front aerospoke, who could trackstand for days.
purple one a FGFS? If so sounds like Pom.