Some may know some don't
but the first serie had different parts
than the later ones or as
the Moto Guzzi / Motobi ones
here are some photos of it
under the engine a construction for the footrest
Aprilia key
Aprilia headlight
pistons with extra grooves
Aprilia taillight
and a photo of the 2 c with a DUTCH gtv
Lot of different parts specially for the Netherlands because way back it was a bycycle with help engine for the law.......