for GILERA/PIAGGIO 125/150ccm 2T AC aluminium 66,0mm stroke 52mm conrod 105.0mm 2 piston ring(s) with cylinder head TUNING RACE – for professionals For race use only. Not admitted in the area of the German StVZO! Product description This PARMAKIT cylinder is the largest capacity tuning cylinder available for the air-cooled 125cc engines produced by PIAGGIO. It can also be combined with a long-stroke crankshaft which increases it to a whopping 188cc! This increase provides scooters such as the PIAGGIO SKR 125, TPH 125 and the APRILIA SR 125 with enough potential to also reach sensible touring speeds on motorways etc. This cylinder is available with or without a cylinder head but if you choose to complete the kit with the PARMAKIT cylinder head the original cylinder cowling will require modification to fit properly. To further raise the performance of this cylinder it can also be complemented with a larger reed valve manifold and carburettor. To enable higher speeds beyond 130 kp