for Vespa PK50/S/XL N Automatica/XL Plurimatic aluminium 47 mm M14x1,25 long thread TUNING ROAD – for everyday use Product description Regrettably the production of spare parts for the Vespa PK Automatica models has been sadly neglected by PIAGGIO in recent years. To prevent these scooters from completely vanishing from our streets and rallies we have decided to have some of the necessary parts reproduced. The original cylinder head suitable for the PK 50/S/XL N Automatica / XL Plurimatica models has been out of production for a number of years. Due to our lack of success in persuading the original manufacturer to re-continue production, we are having the cylinder head produced from scratch with our very own brand new casting forms. This cylinder head type is available in two separate versions. The standard cylinder head , suitable for a bore diameter of 39mm, is a 1 : 1 identical copy of the original item. The second cylinder head, suitable for a bore diameter of 47mm, w