Hello from Switzerland ;) This is my Gilera CBA. I built this with my dad a few years ago. Because it is not street legal, I can only use it on racetracks and it's a lot of fun :) The front wheel with disc brake is a 17" from a Puch, the fork from a 125cc bike. The engine is a Polini Speed Engine with a 65cc Malossi kit and a 13/13 Dellorto carb. The exhaust is a Simonini (don't know the type). The rear shocks are Marzocchi AGE82, they can be found on old Ducatis. Update 14.08.2017: The old setup is gone, I now have a 100cc Simonini Engine with a new exhaust, all mounted to a custom frame. The rear shocks are from paioli, they are a bit shorter as the marzocchis were a bit too big for the moped :)