38.0 mm Vertex piston with two 1.5 mm rectangular piston rings with flank lock (FS) suitable for Puch Maxi and X30 Sport NS/NL cylinders.
The detailed dimensions of the piston according to the technical drawing can be found in the details. You can also find out about the common piston rings, their positions and locking types on the legend in the pictures.
The piston is more durable and provides minimal additional power compared to the original piston. The Vertex piston manufactured for swiing is characterized by its high-quality and precise fit.
| Nominal diameter | 38 mm |
| Manufacturer | swiing® revival parts, Vertex |
| Ø outside piston (A) | 37.96 mm |
| Compression height (C) | 22.45 mm |
| Curvature (D) | 3.5 mm |
| Total piston height (E) | 50.45 mm |
| Number of piston rings (F) | 2 pcs |
| Piston ring mold | Rectangular ring |
| Ø piston pin (B) | 12 mm |
| Piston ring impact | Flank safety device (FS) |
| Piston ring height | 1.5 mm |
| Thick piston ring | 1.6 mm |
| Tolerance group | A |
| Weight piston kit | 71 g |
| Puch | E50 ZA50 (air-cooled) Z50 (X30 Sport) |
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