salmanf1
Maximum drag-limited speed increases as a cube root of the increase in power.
How?
P=Fd.v=(Cd.A.rho.v²/2).v
Where
P=Power (in Watts)
Fd=Drag force (Newtons)
Cd=Drag coefficient (Non-dimensional)
A=Frontal area (Sq. Metres)
rho=Air density (kg/cubic metre)
v=Velocity (speed in laytalk) (metres / second)
So, assuming you can put in a 500cc engine in the same bike that can go to 100 mph with 50cc ^o), you should touch 215 mph.
Happy?
p.s. Where in heavens did you find a bike of 50cc that goes 100mph?