38.0 mm Vertex piston with two 1.5 mm rectangular piston rings featuring flank locking (FS), compatible with Puch Maxi and X30 Sport NS/NL cylinders.
You can find the detailed dimensions of the piston, as shown in the technical drawing, in the product details. You can also find information about common piston rings, their contact surfaces, and retention types in the legend accompanying the images.
The piston is more durable and delivers a slight performance boost compared to the original piston. The Vertex piston, manufactured for swiing, is characterized by its high-quality and precise workmanship.
Tolerance type: 4
The piston kit includes a piston pin, piston clips, and piston rings.
Note: Please observe the installation direction during assembly. The piston is installed with the arrow pointing toward the exhaust on the exhaust side.
You can find the appropriate installation tools, piston pin locks, and, if necessary, the corresponding cylinder in the accessories section.
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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