For some of the seasoned purists of motorcycling, modern motorcycles are seen as a form of sacrilege; what with all the fancy electronic-aids and plastic bits all over. And for a lot of these riders, the Triumph Bonneville range has provided a serious dose of retro motorcycling combined with modern engineering and reliability. However, with the current entry-level Bonneville, the Street Twin, more modern than ever before, does its larger sibling, the new Bajaj v15,