'Cafe Racer' is a term used to denote a sort of motorcycle following that began in the 50s in London of young people who just rode them from cafe to cafe looking cool. The Schott jacket takes the name for the very simple tab collar model, but Vanson uses it to describe some classic snaps-n-zippers types. It also refers to a style of motorcycle, apparently, but I can't figure out exactly what that entails.
The cafe racer motorcycle was a motorcycle built with parts from two different bikes. Someone might use a Norton engine on a Triumph frame or something. It was a British thing, back in the 50s, when the kids who did it didn't have the kind of money to buy a new bike. Mods vs. Greasers, Quadrophenia
thing. I saw a thing on TV about it where guys would take their heavily souped up cafe racers and put a song on the jukebox. They then would have to race up to a certain landmark and back before the song was over. So, figure 2 minutes on average. Needless to say they had to go very, very fast.