I would say the top speed is around 45mph and it sounds like its screaming doing anything over 40mph. The 300 fourtrax was designed to be a utility machine and working in the lower end of the scale is where it is most happy.Click to see full answer. Keeping this in view, how much horsepower does a Honda 300 Fourtrax have?The 1995 Honda TRX 300 FourTrax has an engine displacement of 17.2 cubic inches, or 282 cc. The bore and stroke are 2.8 by 2.6 inches, and the compression ratio is 9:1. The total power output is 20 horsepower at 3,500 RPM, and the total torque is approximately 30 ft. -lbs.Secondly, how fast does a Honda 420 go? The stats say top speed for this machine stock is 56 mph. Likewise, people ask, how many cc is a Honda Fourtrax 300? 282 cc What kind of oil does a Honda Fourtrax 300 take? 1999 HONDA TRX300 FOURTRAX 300 OIL CHANGE KIT 3 Quarts of Honda GN4 10W-40 4-Stroke Motorcylce Oil.