Up for sale is this Complete Mahle Piston kit for the Bultaco models Matador MK4 model 75 and the European Pursang model 68 I believe. Part number on box for this piston is 75.10.035.1 but this has been crossed out and the part number 68.10.035-1 lightly stamped above label this being the piston for the European model of the model 68 Pursang. This piston is in it's first oversize with it's diameter stated as being 72.25mm. I am not sure what the difference in piston and cylinders is between the US model 68 Pursang and the European model but there are different part numbers for them. If anyone knows please let me know. Anyhow look at pictures carefully and do your research to make sure this is the right piston for your model. Box has shelf wear but piston is in excellent condition complete with it's pin and clips. I unwrapped the wrist pin for inspection and it is in untarnished condition but protective wrapping paper disintegrated so I re-wrapped it using new paper. This piston will be shipped out USPS Priority Mail for Free within the US. Please ask any questions you need to ask before buying and thanks for looking!