The YZ250F produces 38.9 hp and 17.8 pound-feet of torque on the Dirt Rider dyno. With those numbers, it ranks fifth in peak horsepower and makes the least maximum torque of all the bikes in the class. It just goes to show that peak figures don’t tell the whole story. The Yamaha is our favorite 250F motocross bike on the dirt dyno—aka the track, which is where races, championships, and comparison tests are won or lost. The YZ250F is a winner.