Until retro really became popular, ironically, around the start of the 21st Century (boy), motorcycles were about aiming at the future, stretching the throttle cable as tight as a banjo string and not looking back (except to see if that blue BMW you whipped past at 120mph was an unmarked police car). Now the headline-grabbing bikes are as likely to have been styled with 40, 50, or in this case, nearly 70 year-old design cues as truly modern thinking. Royal Enfield is a compan