   Original Dellorto top ring nut for SSI 25-30mm "D" model carbs. This new old stock ring nut is for the later model "D" model carbs and is taller than the earlier type "A" ring nuts. These "D" model carbs are mostly found on Moto Guzzi V700 twins and late model Ducati bevel 250, 350, 450 cc singles.NOTE: The top cap and ring nut must be a matching set for the wire retainer clip holes to align properly. |