2017 KTM 250 EXC-F A RECIPE FOR SUCCESS Fill an agile, state-of-the-art chassis with an engine delivering class-leading power and torque. Then dress it with top class components, ensuring that the lively little 4-stroke maintains its edge over the competition. Finished. First. And it s easy on the stomach for amateur explorers, while still satisfying fame-hungry pros. Eat that, adversaries.