This was on a thread on 3wheeler.org posted by MR. ATC. This should end the mass confusion in earlier posts. Radar and GPS are the only way to accurately measure speed...
"the end all list... TOP SPEED of "my" trike
here is a list of the "aproximate" Average top speed of the majority of the most popular 3Wheeled ATV's. this list is based on severall criteria including magazine articals and test, manufactures "claimed" top speed, ( before lawsuits the manufactures were not afraid to post top speed in there spec sheets), and personall experiance using such equpiment as radar guns, atv mounted factory aproved and tested speedometers, side by side riding with comparable ( i.e. XL on-off road m/c's) by riding on flat paved sufaces on distance's of over two miles. (how fast your buddy, the cops, or whoever had to accelerate to to catch up to you on your trike is not the same).
NOTE, this is Based on brand new showroom stock 3 wheelers. NO modifications or 15yr plus machines. rebuilt or not. (there is more to a rebuild then just piston and rings).
Tiger 500............................................... ...........................90+mph
Tiger 250............................................... ...........................85+mph
(note Tigers were not production trikes. each Tiger was hand made to original customer specs. this is just a average estimate)
86/87 Tecate 250............................................... ..............85mph
86 ATC 250R.............................................. .......................83mph
85 ATC 250R.............................................. .......................80mph
84/85 Tecate............................................ ........................78mph
86 TRI Z 250............................................... ......................76mph
83/84 ATC 250R.............................................. ..................74mph
85 ATC 350X.............................................. .......................72 mph
85 TRI Z 250............................................... ......................69mph
81/82 ATC 250R.............................................. ..................65mph
86/87 ATC 200X.............................................. ..................62mph
83-85 ATC 200X.............................................. ..................58mph
83 ATC 185s.............................................. ........................55mph
81/82 ATC 200............................................... ...................54mph
79-85 ATC 110............................................... ...................48mph
more models updated soon.
hopefully this will limit the number of "how fast will my trike go" post the are repetative"