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Honda

This high-performance sport model now features reverse and new, stylish bodywork for 2005.

New for 2005

  • All-new TRX450R-inspired bodywork.
  • Five-speed transmission now features reverse.
  • Brake light as standard equipment.

Unique features

  • The 397cc RFVC(tm) engine draws its breath from the same engine that powered the bulletproof XR(r)400R.
  • Rugged steel frame with removable subframe for easy maintenance.
  • Beautiful one-piece cast aluminum swingarm offers exceptional rigidity.
  • Radial tires for exceptional handling.
  • Triple disc brakes provide superb stopping power.
  • Aggressive body style complements the all-sport appearance.

Engine/Drivetrain

  • High-performance 397cc dry-sump air-cooled four-stroke single-cylinder engine.
  • Radial Four-Valve Combustion Chamber (RFVC) for maximum combustion efficiency and horsepower.
  • Camshaft timing developed especially to meet ATV requirements for torque and useable horsepower.
  • Gear-driven counterbalancer minimizes engine vibration for smooth operation.
  • Dual intake and exhaust ports for maximum engine efficiency in sport operating conditions.
  • Maintenance-free automatic cam-chain tensioner.
  • Closed crankcase vent system safeguards against engine oil contamination.
  • 38mm carburetor provides light throttle effort, superb air/fuel mixing and excellent driveability. An accelerator pump assures excellent throttle response for maximum power.
  • Stainless steel dual exhaust head pipes resist corrosion.
  • USDA-qualified muffler/spark arrester offers quiet operation and maximum power.
  • CD ignition with electronic advance and 9100-rpm engine rev limiter.
  • Heavy-duty clutch has 2mm-thick plates designed to stand up to sport ATV demands.
  • High-efficiency oil cooler supplements the large-capacity oil tank for maximum engine cooling.
  • Five-speed transmission with reverse has gearsĘ and ratios specifically designed for sport ATV use.

Chassis/Suspension

  • Round-tube steel frame with removable subframe is lightweight, durable and very strong.
  • One-piece cast aluminum swingarm for maximum strength, rigidity and durability.
  • Independent double-wishbone front suspension offers 8.2 inches of travel from twin Showa(r) shock absorbers with five-position adjustable spring preload for superb ride quality over harsh terrain.
  • Pro-Link(r) rear suspension with a fully adjustable large-diameter aluminum-body piggyback Showa shock absorber provides 9.1 inches of travel.
  • Triple disc brakes for excellent stopping power and a weight-saving aluminum rear caliper stay.
  • All Pro-Link components are made of aluminum to further reduce vehicle weight.
  • Lightweight aluminum wheels reduce unsprung weight for even better handling.
  • Radial tires with knobby pattern provide superb traction and cornering ability.
  • Durable and lightweight heavy-duty O-ring-sealed drive chain.
  • Easy-to-use eccentric chain adjuster.

Additional Features

  • Engine design meets California Air Resources Board (CARB) off-road emissions standards.
  • Convenient push-button electric starting.
  • Long, narrow seat provides excellent comfort and superb sport riding ergonomics.
  • Aggressive styling of front cowl, fuel tank and fenders complements pure-sport ATV design.
  • Durable plastic fuel tank.
  • Dual 30-watt headlights integrated into front cowl provide distinctive sport style and excellent function.
  • New rear brake light.
  • Snorkel-type airbox to avoid water and dirt contamination.
  • Washable, two-stage large-capacity foam air filter.
  • Oil tank features a dipstick for easy maintenance.
  • Comfortable dogleg levers; clutch lever has cable adjuster and dust cover.
  • Tough steel front skid plate.
  • Heavy-duty steel skid plate protects rear brake disc and sprocket.
  • Engine cases protected by a tough urethane skid plate.
  • Rear mudguard with rigid footrests.
  • Maintenance-free battery.
  • Keyed ignition switch offers added security.
  • Multi-function handlebar switch assembly is simple to operate.
  • Easy-to-use parking brake.
  • Toolkit includes low-pressure air gauge and owner's manual.
  • Assembled in Timmonsville, South Carolina.
  • Transferable six-month limited warranty; extended coverage available with a Honda Protection Plan.
  • Ownership includes one-year complimentary membership in the Honda Rider's Club of America(tm) (HRCA(r)). Benefits include: discounts, travel benefits, roadside assistance for ATV transport vehicle while ATV is being transported, one year complimentary subscription to Honda Red Rider ATV(tm) magazine, access to HRCA Clubhouse Web site (www.hrca.honda.com), access online to Honda Common Service Manual. For HRCA details, call 1-800-847-HRCA.

Available Accessories

  • Flag Kit.

2005 Honda TRX400EX Specifications

  • Engine Type: 397cc RFVC air-cooled dry-sump single-cylinder four-stroke
  • Bore and Stroke: 85mm x 70mm
  • Carburetion: 38mm piston-valve with accelerator pump
  • Ignition: CD with electronic advance
  • Starter: Electric
  • Clutch: Manual
  • Transmission: Five-speed with reverse
  • Driveline: O-ring-sealed chain
  • Suspension:
         Front:
    Independent double-wishbone with Showa shocks, five-position spring preload adjustability; 8.2 inches travel
         Rear: Pro-Link fully adjustable single Showa shock; 9.1 inches travel
  • Brakes:
         Front: Dual hydraulic 174mm discs
         Rear: Single 220mm disc
  • Tires:
         Front: 22 x 7-10 knobby radial
         Rear: 20x 10-9 knobby radial
  • Length: 72.2 inches
  • Width: 45.3 inches
  • Height: 43.7 inches
  • Seat Height: 31.9 inches
  • Ground Clearance: 4.3 inches
  • Wheelbase: 48.4 inches
  • Turning Radius: 10.5 feet
  • Dry Weight: 386 pounds
  • Fuel Capacity: 2.6 gallons, including 0.4-gallon reserve
  • Color: Red, Yellow

For highly experienced riders 16 years of age and older.


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