The Beach MAD e-moto is adequately powerful, rocking a 2kW continuous motor and hitting a top speed of just 60 km/h (37 mph). That puts it in 50cc performance territory. http://www.velocifero.eu/
As anyone who has ever ridden a 50cc bike before knows, they can still be a lot of fun in the right environment. And perhaps even more so with a foreward-looking design like the Velocifero Beach MAD.
Check the Velocifero update for more details as they become available!