A bit of dribble from 2009 about 'The fastest 250cc ninja at Maxton'. https://www.sportrider.com/mini-08-kawasaki-ninja-250r-little-ninja-went-to-maxton
The new 400 is not a lot better. https://www.sportrider.com/how-much-power-does-new-2018-kawasaki-ninja-400-make
Hmmmm my GB250 is suppose to be 30hp@9000rmp and 17.5 ft-lbs@8000rpm. Its also suppose to do 154kmh @140kg (yeah right) mine is pretty close to 124kg at the moe Hmmm 5 more horses and a bit lighter I should be be able to beat that ninja assuming the figures I have gotten from the net are correct......