CRF450RX

When it comes to motocross, the new 2017 CRF450R is huge news this year. But in the enduro, hare scrambles, and GNCC world, there’s even bigger news: Introducing the new 2017 Honda CRF450RX, the ultimate weapon for serious off-road competitors. At its core, we’ve taken our new CRF450R and optimized it for off-road racing. And not with just some new tires or graphics. We’ve done it the Honda way—the right way. And the results are, well, electrifying.

Engine Type 449cc liquid-cooled single-cylinder four-stroke
Bore And Stroke 96mm x 62.1mm
Compression Ratio 13.5:1
Valve Train Unicam® four-valve; 38mm intake, titanium; 31mm exhaust, Steel
Induction Programmed Fuel Injection (PGM-FI), 46mm downdraft throttle body
Ignition Fully transistorized with electronic advance
Transmission Close-ratio five-speed
Final Drive #520 Chain; 13T/50T

CRF450X

It’s a dream everyone had, but nobody could deliver on—until Honda invented the CRF450X. The light weight and power of a motocross bike, available to trail riders, Baja demons, and cross-country racers everywhere. But actually the CRF450X is a whole lot better than just an MX bike off the track. It gets a ton of specialized touches and refinements that hone it for the trail.

Engine Type 449cc liquid-cooled single-cylinder four-stroke
Bore And Stroke 96mm x 62mm
Compression Ratio 12.0:1
Valve Train Unicam® four-valve; 35mm intake, 30mm exhaust
Induction Keihin® 40mm flat-slide carburetor with Throttle Position Sensor (TPS)
Ignition CD with electronic advance and lighting coil
Transmission Wide-ratio five-speed
Final Drive #520 T-ring-sealed chain; 13T/51T

CRF250X

Every off-roader wants the light weight, crisp handling, and razor-sharp performance of a racebike. But everyone also wants it to be easier to ride, more forgiving, and offer the reliability of a machine that’s not on the ragged edge. Oh yeah, and it can’t cost a million bucks, either. Well, you’re in luck, because Honda’s CRF250X offers the best of both worlds, with none of the drawbacks.

Engine Type 249cc liquid-cooled single-cylinder four-stroke
Bore And Stroke 78mm x 52.2mm
Compression Ratio 12.9:1
Valve Train Unicam®, four-valve; 31mm intake valve, 26mm exhaust valve
Induction Programmed Fuel Injection (PGM-FI), 46mm downdraft throttle body
Ignition Keihin® 37mm flat-slide carburetor with Throttle Position Sensor (TPS)
Transmission Wide-ratio five-speed
Final Drive #520 T-ring-sealed chain; 14T/53T