48 mm replacement piston with a 2 mm L-piston ring with internal circlip (IS) for mopeds / mopeds with the original Sachs 503 AB / AC / ADV wide-wall 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 relevant piston rings, their stems and locking types on the legend in the pictures.
| Nominal diameter | 48 mm |
| Manufacturer | Athena |
| Ø outside piston (A) | 47.92 mm |
| Compression height (C) | 29.3 mm |
| Curvature (D) | 2.1 mm |
| Total piston height (E) | 52 mm |
| Number of piston rings (F) | 1 pcs |
| Piston ring mold | L-ring |
| Piston ring impact | Internal fuse (IS) |
| Piston ring height | 2 mm |
| Ø piston pin (B) | 12 mm |
| Tolerance group | A |
| Weight piston kit | 114 g |
| Sachs | 503 - AB , AC , ADV |
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