2008 Honda CRF®450X

Additional Features

• Stainless steel clutch cable for long life.
• Hot-start lever conveniently located on clutch perch.
• Quick-adjust clutch perch.
• Rider ergonomics are optimized by adapting the handlebar, seat and footpeg height to place the rider's legs at the narrowest cross-section of the frame for improved comfort and handling feel.
• Handlebar holders provide two different mounting positions to match rider preference.
• Rear-brake pedal and shift lever are made of lightweight aluminum and are designed to complement the riding position. Brake pedal features optimized ratio to match integrated rear-brake master cylinder design.
• Aluminum Renthal handlebar (971 bend) is rubber-mounted to help reduce rider fatigue and improve comfort.
• Removable rear subframe allows for easy maintenance.
• Works-type handlebar grips add to rider comfort.
• Purchase of a new, previously unregistered Honda USA-certified unit by an individual retail user in the United States qualifies the owner for a one-year complimentary membership in the Honda Rider's Club of America® (HRCA®). Visit www.hrca.honda.com for details.
• Honda Racing™-inspired colors and graphics.
• Comfortable, durable controls and high-quality fasteners.
• Wide, cleated, stainless steel footpegs are self-cleaning, resist corrosion, provide excellent grip and fold for extra ground clearance.
• Front disc brake cover helps protect rotor and caliper from damage.
• Adjustable front brake lever.

Chassis/Suspension

• Front wheel features large-diameter front axle and wide wheel-bearing span for excellent rigidity.
• Revised, sophisticated inverted twin-chamber cartridge fork.
• 25 mm rear-axle diameter and large-diameter bearings provide optimum rigidity to withstand torturous off-road conditions.
• Large 50 mm rear shock damper piston diameter for consistent performance under demanding riding conditions.
• HPSD features a compact damper attached to the upper triple clamp and the steering head to augment more aggressive steering characteristics and assist straight-line handling. Tuned specifically for higher speed, non-motocross, off-road riding applications, the CRF450X damper incorporates different valving/settings compared to the units on the motocross models. HPSD provides straight-line confidence at high speeds, a planted feel in corners, less rider fatigue and outstanding control over a wider variety of terrain and riding conditions.
• HRC works-type rear brake system integrates the rear master cylinder and fluid reservoir, eliminating the need for a separate reservoir and hose assembly.
• 18-inch rear wheel features same lightweight rear hub and HRC works-type lightweight aluminum spoke nipples as used on CRF®450R.
• Compact twin-piston front brake caliper, anodized aluminum brake pistons and lightweight front brake disc minimize unsprung weight for improved turning and handling.
• Fourth-generation twin-spar aluminum frame with forged-aluminum steering head.
• Pro-Link rear suspension with new damper settings.

Engine/Drivetrain

• Electric starter drives the clutch side of the crankshaft to provide superior lubrication of starter gears, and produce a narrow engine with a short, strong crankshaft.
• 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.
• 40 mm Keihin FCR-type carburetor features four rollers on the flat slide, resulting in light throttle effort, smooth operation, crisp throttle response and excellent rideability.
• Clutch cover and cylinder-head cover are made of magnesium to reduce engine weight.
• Forged 12.0:1 compression slipper piston is lighter than a conventional design, revving quickly while maintaining excellent cylinder sealing and high-rpm power.
• Exhaust system uses a lightweight, stainless steel exhaust header and muffler equipped with spark arrester.
• Dual radiators feature a refined core area for improved heat dissipation compared to conventional dual-radiator design. Coolant recovery tank is located in front of the engine between the frame down-tubes for improved center of gravity. Coolant tank is protected by plastic skid-plate.
• Durable and versatile five-speed wide-ratio transmission.
• Lightweight titanium intake valves permit use of smaller valve springs, reducing overall engine height.
• Carburetor features a throttle position sensor (TPS) to help maintain linear throttle response throughout the rpm range.
• Gear-driven balancer 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.
• Powerful four-stroke 449 cc liquid-cooled four-valve Unicam® engine is designed to produce power across a wide rpm band for off-road riding.
• Nikasil cylinder lining is lightweight and provides cooler and quieter operation for extended engine life.
• Compact, lightweight engine assembly weighs only 71-pounds.

New for 2008

• New works-type front and rear brake discs reduce unsprung weight.
• New Honda Progressive Steering Damper (HPSD). Developed by Team Honda, this lightweight, compact steering damper improves cornering ability and helps reduce rider fatigue.
• Carburetor features revised settings and new accelerator pump and linkage for improved throttle response.
• New engine de-compression system is lighter and more compact.
• New Dunlop 742FA front tire for improved turning feel and traction.
• New narrow-design fuel tank and seat for improved rider ergonomics.
• New fork triple clamps with 22 mm offset and revised front axle placement improve fork action and turning traits.

Unique features

• 18-inch rear wheel for greater flat-tire protection.
• USDA-qualified muffler/spark arrester.
• Resettable, easy-to-read three-digit odometer.
• Wide-ratio five-speed transmission.
• Suspension and chassis tuned for competitive off-road riding needs.
• T-ring-sealed chain is approximately 1.6 mm narrower, and stronger compared to conventional chains.
• Electric-start system for easy starting in all conditions.
• Fuel-tank capacity is 1.9-gallons.
• Convenient sidestand integrated into left footpeg bracket can be easily removed for competition events.
• Skid-plate and engine guards feature a unique three-piece design.
• Powerful 35-watt halogen headlight offers a wide range of illumination.
• Integrated LED taillight in rear fender.