Read more: 12 Major Motorcycle Brands Ranked Worst To Best With the 250R retired and no new Ninja 300cc model making its appearance, the Ninja 400 is now the smallest gas engine sport bike that ...

First made in the 1980s, the Ninja 250’s reliability can be gauged by ... You can get over 100,000 miles on its engine if you keep up on the maintenance. Many owners of the Kawasaki Vulcan ...