there is no such thing as a crf100r. theres a xr100r. and a crf150f.
fast enough
about 60mph
about 40mph
210
it all dipends on the bike
A 70cc dirt bike will achieve a top speed of around 40mph
not very fast
55 to 60 its fast
how fast does 250cc Orion dirt bike go
90 mph
16.557 fps
59 hp