The Pinasco Power Casing Engine Crankcase for Piaggio Moped has been designed to accommodate a crankshaft with a valve side shoulder 5mm wider than the original, with 43mm and 46mm stroke, rotary valve intake with interchangeable manifolds of 13mm (supplied), 21mm (optional), and CNC machined supplementary transfer ports. The kit is available in 2 distinct versions, Valve and Reed for thermal groups with a bore of 43mm and 46mm and comes with the dedicated crankshaft and all assembly accessories.