Honda’s take on the big off-road racer is the CRF450RX, a new version of the CRF450R motocross bike. It has a different power delivery, a larger tank, softer suspension, a kickstand and an 18-inch rear wheel. It has the MX gearbox, and it got all the same updates as the 2019 motocross bike, including a flexier frame and swingarm. The kickstarter provision has been taken away for 2019.Baja racers have been drooling over this bike since it was announced. This is the long-anticipated EFI remake of the X, a bike that has dominated the Mexican 1000 for years. It has the same layout as the R motocrosser but with a six-speed gearbox and full EPA blessing as a legitimate off-road bike. That means it’s super quiet and green-sticker-legal in California without a throttle stop or any such end runs.KTM’s master plan is to direct trail riders towards its dual-sport line while off-road racers are offered this: a full-race, off-road version of the 450 motocross bike. The 450XC-F has the same gearbox, motor, muffler and suspension components as the SX model, but it carries more fuel and has different settings to make the power delivery and suspension action more appropriate for off-road racing. It has a kickstand, an 18-inch wheel and handguards.