2019 Honda CRF450X


Honda’s CRF450X has long been the choice of Baja champions and woods pros—and riders who want the light weight and awesome power of a premium MX bike, but who also know that while MX machines are perfect for 30-minute motos, out in the big, bad, open-class real world you need a machine that can do more. That all-around excellent performance is what’s made the CRF450X always stand out, whether it’s in the winner’s circle in La Paz or out on your local trails. And for 2019, the CRF450X has been completely overhauled from the ground up—with lots of new upgrades, including an all-new aluminum frame and . . . wait for it . . . a six-speed transmission!


  • SIX-SPEED TRANSMISSION: Like our CRF450X, the CRF450L rocks a six-speed gearbox. That gives you a low gear perfect for tight, slow situations, and a top gear that’s tall enough for highway riding to the next gas stop or trailhead.
  • LITHIUM ION BATTERY: Light, compact, and offering excellent performance—just like the CRF450L itself! Conventional batteries are heavy, but not this premium piece. It’s all part of why your new CRF450L performs as well as it does.
  • TUNED WEIGHT CRANK: The CRF450X gets a special crankshaft, different from our CRF450R MX bikes and our CRF450L dual-sport. Why? The crank’s weight and inertial character make a huge difference in how a bike delivers power. A crank is expensive, but it’s no place to scrimp and try to save—with the CRF450X, power delivery is just what you want.
  • ELECTRIC STARTER: An electric start system ensures trouble-free starting in all conditions. The electric starter also drives the clutch side of the crankshaft to provide superior lubrication to starter gears while producing a narrow engine with a short, strong crank.
  • DUAL RADIATORS: The CRF450L’s dual radiators feature a refined core area for superior heat dissipation compared with conventional dual-radiator designs. A coolant recovery tank is located in front of the engine between the frame downtubes for improved center of mass, and the tank is protected by a plastic skid plate.
  • ELECTRIC FAN: The CRF450X’s dual radiators feature a refined core area for superior heat dissipation compared with conventional dual-radiator designs. A coolant recovery tank is located in front of the engine between the frame downtubes for improved center of gravity, and the tank is protected by a plastic skid plate.
  • TITANIUM FUEL TANK: Holding 2.01 gallons, the CRF450X’s premium titanium tank is light and tough.
  • SKID PLATE: The CRF450X’s factory skid plate is light, yet also offers the engine and lower-frame protection serious riders demand on a machine like this.
  • LIGHTING PACKAGE: Your new CRF450X comes equipped with a complete lighting package (headlight and taillight) for riding at dusk.
  • 449 CC UNICAM ENGINE: Honda’s Unicam cylinder heads combine the best of single- and double-overhead-cam designs. The configuration contributes to a compact engine that saves weight over a comparable dual-overhead-camshaft motor and also permits a narrow included valve angle. This flattens the combustion chamber to facilitate ignition flame propagation, allowing a high compression ratio. Since less space is taken up in the cylinder head, the camshaft sits lower in the head for a more compact engine and a lower center of gravity.
  • TITANIUM INTAKE VALVES: Lightweight titanium intake valves permit use of smaller valve springs, reducing overall engine height.
  • FUEL INJECTION: The CRF450L features our proven fuel-injection system. It’s part of the reason the CRF450L offers such excellent torque and spot-on metering and response, especially in the critical low-rpm range. It also automatically compensates for elevation and weather changes.
  • TWIN-SPAR CHASSIS: This is the same design as our all-new CRF450X uses, and that’s a really big deal. It means the CRF450L is a true off-road bike, and not some compromise. The twin-spar aluminum frame is both light and stiff, and provides the basis for the CRF450L’s excellent handling. The chassis geometry is specially selected for responsiveness, and also is wider than the standard MX frame to accommodate the six-speed transmission.
  • DUNLOP MX52 TIRES: The CRF450X’s Dunlop MX52 tires give you good superior off-road traction in a wide variety of terrain and conditions. Tires are always a critical part of any on/off-road bike, and we’ve hooked you up with some great ones here.
  • LOW CENTER OF GRAVITY: The compact Unicam engine and Honda’s famous concentration on center-of-mass engineering help keep the CRF450X’s center of gravity low. That means the bike feels lighter, and it helps handling too.
  • WORKS-STYLE FRONT BRAKE: Compact twin-piston front brake caliper, anodized-aluminum brake pistons and lightweight 260 mm front disc offer great stopping power while minimizing unsprung weight for improved turning and handling.
  • WORKS-STYLE REAR BRAKE: HRC works-type rear brake system uses a 240 mm brake rotor to its integrated rear master-cylinder and fluid reservoir, a set-up that eliminates the separate reservoir and hose.
  • 18-INCH REAR WHEEL: The CRF450X’s 18-inch rear wheel gives you an excellent choice of off-road tires. Plus, the black DID rims look great too.
  • GEAR-DRIVEN COUNTERBALNCER: The Gear-Driven Counterbalancer reduces vibration and drives the water pump. Eight clutch plates provide the surface area necessary to handle the engine's massive torque, while carefully matched clutch springs provide a light feel at the lever.
  • RENTHAL FATBAR: Aluminum Renthal Fatbar is rubber-mounted to help reduce rider fatigue and improve comfort.
  • WORKS MX STYLING: Having a hard time spotting the differences between our factory MX bikes and the new CRF450L? You’re excused. The “L” looks like our MX bikes because it’s derived from them—the smooth bodywork makes it easy to move around, and the in-mold graphics not only look cool but are durable, too.
  • SUPERIOR ERGONOMICS: Placing the rider’s legs at the narrowest part of the frame helps improve comfort and handling.
  • SIDESTAND: Hey, a sidestand may seem like no big thing, but take a look at the one the CRF450X uses. Tucked up high and out of the way, this forged alloy piece is just another example of how the CRF450X gets it right.

General Information

Manufacturer Honda
Model Year 2019
Model CRF450X
Model Code CRF450XK
Color Red



Front - Single 260 mm disc with twin-piston caliper hydraulic

Rear - Single 240 mm disc with twin-piston hydraulic

Wheels DID rims
Wheel Colors Black

Front - Dunlop MX52 80/100-21

Rear - Dunlop MX52 110/100-18


Length 85.9 in.
Height 50.1 in.
Width 32.6 in.
Weight Curb - 275 lb. (Includes all standard equipment, required fluids and full tank of fuel-ready to ride.)
Ground Clearance 12.4 in.
Wheelbase 58.8 in.
Seat Height 37.4 in.


Transmission Wide-ratio six-speed, manual
Final Drive #520 Sealed Chain



Single-cylinder four-stroke

Valve Train - Unicam OHC, 4-valve

Displacement 449 cc
Bore x Stroke 96 x 62.1 mm
Compression Ratio 12.0:1
Fuel System Programmed Fuel Injection (PGM-FI), 46 mm downdraft throttle body
Fuel Capacity 2.01 gal.
Ignition Fully transistorized with electronic advance
Clutch Multiplate wet (6 springs)
Cooling Liquid
Battery Lithium ion


Starting Push-button electric

Front - 49 mm leading-axle inverted telescopic Showa coil-spring fork with rebound and compression damping adjustability

Rear - Pro-Link Showa single shock with adjustable spring preload, rebound and compression damping adjustability

Rake 28° 06 ft. (Caster Angle)
Trail 4.6 in.