150
my stock crf 150 does 112mph.
56 horsepower at 9000 rpm
same as the trx 450
A Crf 50 goes 30-35 mph
20 mph
45+
fast
60 mph
it doesn't go, because it's a honda.
my crf 150 is fully modified up n hits about 110mph
With 13/48 gearing should be in the 75-77 MPH range.