2017 Benelli TNT 300, 2017 Benelli TNT 300 GEAR-UP. TWIST THROTTLE. ROLL OUT. Looking for a fun, fast, and aggressively-styled? naked sportbike? Look no further than our new TNT300 a thoroughly modern 300cc naked machine with the looks and performance of a much larger motorcycle. The TNT300 s liquid-cooled, vertical twin-cylinder engine shares much of its architecture with the engine powering o...