It's time to put the 2024 lineup of 250 four-stroke motocross bikes in a head-to-head test. What was the best, what was the worst, and what happened in between when the Yamaha YZ250F went up against the KTM 250 SX-F, the Honda CRF250R, the Suzuki RM-Z250, the Husqvarna FC 250, the GasGas MC 250F, and the Kawasaki KX250? Find out.