39.0 mm piston with a 1.5 mm rectangular piston ring with flank lock (FS) for Zündapp ZR25 / ZR50 mopeds / mopeds with a type 250 engine.
The detailed dimensioning of the piston according to the technical drawing can be found in the details. You can also find out about the relevant piston rings, their dimensions and locking types on the legend in the images.
Tolerance type: CD
The piston kit contains piston pins, piston clips and piston rings.
You will find the corresponding assembly tool, piston pin locks and, if necessary, the corresponding cylinder in the accessories section.
Original Zündapp spare part number: 250-02.711/04
Quality product from the Italian manufacturer Meteor.
| Manufacturer | Meteor |
| Ø outside piston (A) | 38.95 mm |
| Compression height (C) | 23 mm |
| Curvature (D) | 1.5 mm |
| Total piston height (E) | 48 mm |
| Number of piston rings (F) | 1 pcs |
| Nominal diameter | 39 mm |
| Piston ring mold | Rectangular ring |
| Piston ring impact | Flank safety device (FS) |
| Piston ring height | 1.5 mm |
| Ø piston pin (B) | 12 mm |
| Tolerance group | CD |
| Piston weight | 75 g |
| Zündapp |
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