55 mph and over 60 mph with a sprocket change.
90 mph
the top speed for the 1986 and 1985 honda atc 250r is 83 miles per hour
ATC 250R, '81-'82 - 65 mph, '83-'84 - 74 mph, '85 - 80 mph, '86 - 83 mph
55mph average but 60pmh is easily obtained with a sprocket change
65 MPH stock....Can get it to go 80 with different sprockets
75MPH stock 83-84 same stock 81-82 same stock(65MPH)
85mph
the 350 has a higher top speed but the 250 will have a much quicker launch due to being a two stroke. overall, you can put a big bore kit in the 250 and make it just as fast as the 350.
The top speed of the CRF 250r is around 65 mph. The top speed of 2007 CRF 250R is 115-120km/h. The top speed is about 75 mph for a 2004 CRF 250R.
ATC 200X, '83-'85 - 58 mph, '86-'87 - 62 mph
35 to 40 mph, depending on a persons weight, condition of engine, ect..
180