51 mph
80 mph is definetly too fast. i have a 05 CRF 250 and it tops at 83.
my stock crf 150 does 112mph.
45 to 50 depending on your weight
A Crf 50 goes 30-35 mph
45+
fast
60 mph
my crf 150 is fully modified up n hits about 110mph
near 95 mph
10mph 10mph
30-35mph