2016 Honda CRF450X

King Of Its Class.

Taking its inspiration from Honda’s revolutionary CRF450R Motocross machine, the CRF450X gets Honda’s magical touches that transform it into the king of the trail. Touches like the Honda Progressive Steering Damper, which helps reduce rider fatigue and improve cornering. An electric starter for easy start-ups in even the worst conditions. A Pro-Link suspension, bulletproof Unicam® engine and the kind of durability Honda is known for.

Standard Features

  • EMISSIONS: Meets current California Air Resources Board (CARB) and EPA off-road emissions standards.
  • TITANIUM INTAKE VALVES: Lightweight titanium intake valves permit use of smaller valve springs, reducing overall engine height.
  • 449CC 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.
  • GEAR-DRIVEN COUNTERBALANCER: 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.
  • TWIN-SUMP LUBRICATION: Twin-sump lubrication system separates the oil supply for the crankshaft, piston and valve train from the clutch and transmission. This ensures a cool supply of oil to the clutch, eliminates clutch and transmission material contamination of the engine oil, reduces the amount of circulating oil and permits the use of a smaller oil pump.
  • DUAL RADIATORS: Dual radiators feature a refined core area for improved heat dissipation compared with conventional dual-radiator designs. Coolant recovery tank is located in front of the engine between the frame downtubes for improved center of gravity. Coolant tank is protected by a plastic skid plate.
  • SUPERIOR ERGONOMICS: Placing the rider’s legs at the narrowest part of the frame improves comfort and handling.
  • WORK-STYLE FRONT BRAKE: Compact twin-piston front brake caliper, anodized-aluminum brake pistons and lightweight 240mm front disc offers great stopping power while minimizing unsprung weight for improved turning and handling.
  • WORK-STYLE REAR BRAKE: HRC works-type rear brake system uses a 240mm brake rotor to its integrated rear master-cylinder and fluid reservoir, a set-up that eliminates the separate reservoir and hose.
  • ELECTRIC STARTER: Electric start system ensures trouble-free starting in all conditions. 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.
  • LED TAILLIGHT: LED taillight integrated into rear fender. It’s light, compact, and bulletproof.
  • RENTHAL HANDLEBAR: Aluminum Renthal handlebar (971 bend) is rubber-mounted to help reduce rider fatigue and improve comfort.
  • 18-INCH REAR WHEEL: 18-inch rear wheel features same lightweight rear hub and HRC works-type lightweight-aluminum spoke nipples as used on CRF250R.

General Information

Manufacturer Honda
Model Year 2016
Model CRF450X
Model Code CRF450XG
Stock Number H00643
Color Red



Front - Single 240mm disc with twin-piston caliper

Rear - Single 240mm disc


Front - 80/100-21

Rear - 110/100-18


Weight 269 lbs. (includes all standard equipment, required fluids and a full tank of fuel-ready to ride)
Ground Clearance 13.6 inches
Seat Height 37.9 inches


Transmission Wide-ratio five-speed
Final Drive #520 T-ring-sealed chain; 13T/51T


Engine 449cc liquid-cooled single-cylinder four-stroke
Displacement 449cc
Bore x Stroke 96mm x 62mm
Compression Ratio 12.0:1
Carburetion Keihin® 40mm flat-slide carburetor with Throttle Position Sensor (TPS)
Fuel Capacity 1.9 gallons, including 0.4-gallon reserve
Ignition CD with electronic advance and lighting coil


Starting Electric and Kick

Front - 47mm inverted Showa® cartridge fork with 16-position rebound and 16-position compression-damping adjustability; 12.4-inches travel

Rear - Pro-Link® Showa® single shock with adjustable spring-preload, 17-position rebound-damping adjustability, and compression-damping adjustment separated into low-speed (13 positions) and high-speed (3.5 turns); 12.4 inches travel

Rake 27.10° (Caster Angle)
Trail 110mm (4.3 inches)