For all the die heard Honda fans who are still bitter that the OEM never put it’s potent CR500 two-stroke engine in an ATV chassis, your day of jubilee has come. Panthera Motorsports, a Canadian engineering and manufacturing firm, has developed an electric start, 500cc two stroke engine capable of producing 102 horsepower that will bolt directly into a Honda TRX450R chassis. The PM07-18 will set you back $6080 for a version with either electric start or a kick start or an option with both electric and a kickstart can be had for $6400.

Check out a promo video for the engine below as well as a clip of an ATV on the dyno.


  • Volume/Bore/Stroke: 548cc / 94mm / 79 mm
  • Power : 102 HP / 76 KW
  • Torque: 72 lb-ft / 98 Nm
  • Weight: 72lb / 32.7 kg
  • Transmission: 6 speeds
  • Exhaust control: Piston power valve
  • Intake system: Carbon fiber reed valve



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