Triumph Speed Twin review - the BEST retro bike for sporty riding?

The Triumph Speed Twin has had a big overhaul, complete with new upside-down forks, new brakes, sticky tyres and updated electronics. In short, Triumph's realised this is a retro-looking bike that can handle like a proper naked bike, and by gum is it good. Join me to find out how many squeals out of 10 I give it…