A scooter is defined by its looks, not engine size. A scooter has a rear mounted engine, a front leg shield and a foot board.
In Norway a moped is officially defined as a two wheeler with an engine smaller than 50 cc and with a 50 km/h top speed. It can have any shape or form, with or without pedals. In fact, any two wheeler that has 50 cc and a top speed of 50 km/h can be defined as a moped, it is a broad term. As a youngster I rode both trial bikes and cross bikes with 50 ccs and a top speed of 50 km/h, all were officially registered and concidered mopeds. Scooters with a 50 cc can also be concidered a moped. Here, the term moped refers to the performance of the two wheeler, we even have moped cars... scooter, cross bike, chopper, or what ever else, can all be mopeds if their performance are small enough.
I have my garage full of vintage scooters, none are concidered mopeds. Tuned vintage scooters like the one in the picture can have more than 50 hp! Some tune them with nitrous kits, others with super chargers. Some of these guys take their scootering reeeeeaaaaalllly seriously... getting it wrong in their face could be hazardous...
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