Not long ago, we told you about Japanese shop Trick Star’s goal to take the Kawasaki Ninja ZX-4R to superbike speeds. The company tried to do that a few months ago, came really close ...

Both trademarks come from the company’s hometown (Japan) and confirm the plan to have ... This is why the Ninja ZX-4R employs a four-pot mill based on the ZX-25R’s 249cc engine.