The Triumph Thunderbird Nightstorm Special Edition is a fully-specified, blacked-out power cruiser for riders who demand a harder edge along with their laid-back ride. Based on the successful Thunderbird Storm and powered by the big-bore 1699cc (104ci) version of Triumph’s acclaimed parallel-twin engine, the Nightstorm adds a host of styling touches to provide a darker, moodier and more menacing presence.