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Specifications & description


  • Engine type: 420cc liquid-cooled fuel-injected OHV wet-sump longitudinally mounted single-cylinder four-stroke
  • Bore and stroke: 86.5mm x 71.5mm
  • Induction: PGM-FI
  • Ignition: Full-transistorized type with electronic system
  • Starter: Electric with optional auxiliary recoil
  • Compression ratio: 9.9:1

Drive train

  • Clutch: Automatic
  • Transmission: Five-speed manual with reverse
  • Driveline: Direct rear driveshaft

Chassis suspension brakes

  • Front suspension: Independent double-wishbone; 6.69 inches of travel
  • Rear suspension: Swingarm with single shock; 6.69 inches of travel
  • Front brake: 190mm Dual hydraulic disc
  • Rear brake: 160mm Sealed mechanical drum
  • Front tire: 24 x 8-12
  • Rear tire: 24 x 10-11


  • Length: 82.8 inches
  • Width: 47.4 inches
  • Height: 46.2 inches
  • Wheelbase: 50 inches
  • Seat height: 33.7 inches
  • Ground clearance: 7.2 inches
  • Curb weight: 580 pounds (includes all standard equipment, required fluids and a full tank of fuel—ready to ride)
  • Fuel capacity: 3.9 gallons, including 1.3-gallon reserve
  • Turning radius: 9.2 feet


  • Model ID: TRX420TM1
  • Emissions: Meets current EPA and CARB (California) off-road emissions standards.
  • Available colors: Red, olive
  • Note: No operator under age 16. Honda recommends that all ATV riders take a training course and read their owners manual thoroughly.

Factory warranty information

  • One year
  • Transferable limited warranty; extended coverage available with a Honda Protection Plan

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