A very cheap way to give your small frame a new exhaust. And this in a good reproduction quality of Italy's largest exhaust manufacturer. An optimal possibility to finally send old and completely coked exhaust systems to the old part. So the engine can breathe out freely again and the danger of overheating is banished.
Note: PK80 models have a special feature. They have the small cylinder outside diameter of the 50cc models but the large stroke of the 125cc models.
The PK125 systems do not fit on the PK80 due to the different angle resulting from the difference in cylinder diameters (the exhaust rotates in the direction of the small cylinders of the PK80 and the sealing surfaces are no longer flat). The PK80 models can be fitted with the exhaust of the PK125 if the large cylinder of the 125cc models or their tuning variants with 133cc or similar is used.