The Typhoon is very light, which makes the air-cooled twist-and-go feel perkier than it is.
In full power form (only legal for those over 17 years old) the Typhoon gets up to 30mph respectably swiftly, slowing as it winds round to its 50mph top speed.
Restricted, the Typhoon is as lethargic and dangerous in traffic as any other restricted 50, struggling to get to 30mph.