ENGINEERING FEATURES

• Wide-Ratio Six-Speed Transmission: Having six speeds in the CRF450X's transmission compared to an MX bike's typical five gives you more choice, and makes this versatile bike even more versatile. You have a gear for everything from east-coast rock crawling to wide-open Baja blasts.
• Lithium-Ion Battery: Light, compact, and offering excellent performance—just like the CRF450X itself! Conventional batteries are heavy, but not this premium piece. It's all part of why your new CRF450X performs as well as it does.
• Tuned-Weight Crank: The CRF450X gets a special crankshaft, different from our CRF450R MX bikes and our CRF450RL 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.
• Dual Radiators: 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 2.0 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 CRF450X comes equipped with a complete lighting package (headlight and taillight) for riding at dusk.

CONVENIENCE FEATURES

• 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.

PERFORMANCE FEATURES

• 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.