the Casa Case comes complete with crankshaft (with a choice of conrod & stroke), both main crank bearings, oilseals, flywheel flange, front sprocket inner sleeve, rear brake backplate & bearing flanges, rear shocker pin and various fasteners. Any other parts (sidecasing, ignition ( flywheel max. external diameter 128mm), gearbox, clutch etc.) needed to complete the engine are normal Lambretta components