What is the fastest 50cc scooter on the market?

{The fastest 50cc moped was a Kreidler. Henk van Kessel rode 140 miles/hour (226 km/u) in 1977.

Kreidler went bankrupt in 1983, but the mopeds are still for sale second hand, and John Bos is building new ones in Holland.}

This is true, but 50cc scooters are not permitted to go over 70km/h on streets.