Originally Posted by baloneyskin daddy
I have a 250 Honda Elite and a Reflex and ride a lot of dirt roads and even some not so nice trails including crossing shallow creeks and have no problems. Yeah the small wheels and lack of clearance can make it interesting but they're light enough to get off and walk and lift them over obstacles.The Elite is actually better because its shorter and more agile.
Your underbone scooters feature a tubular...motorcyclish frame cloaked in plastic, AND traditional style forks.
The Vespa is spot-welded monocoque structure, with a single-sided fork so it's not going to be as forgiving...Im sure you could do it, but not without some serious maintenance/breakage issues as a result.