VM28's (probably a bit bigger than necessary, but re-jetting isn't that difficult). You also need the "top hat" type plastic/metal insert that goes into the carburetor mouth to allow them to be mounted to the standard Morini rubbers (I bought aluminium ones from NLM, and had to cut off about 10mm so an air passage wasn't blocked). K&N filters aren't cheap either...What model are they please
