40.0 mm piston with two rectangular piston rings with internal locking (IS) suitable for the swiing racing cylinder made of aluminum for Sachs 503 mopeds / mopeds.
The inner surfaces of the piston have been milled flat for optimum guiding of the connecting rod. The two hard chrome-plated piston rings have a positive effect on the service life.
In addition, the piston has two holes for optimum lubrication of the piston pin.
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 | 40 mm |
| Manufacturer | swiing® ingenious parts |
| Ø outside piston (A) | 39.97 mm |
| Compression height (C) | 28 mm |
| Curvature (D) | 3.5 mm |
| Total piston height (E) | 54 mm |
| Number of piston rings (F) | 2 pcs |
| Piston ring mold | Rectangular ring |
| Piston ring impact | Internal fuse (IS) |
| Piston ring height | 1.5 mm |
| Thick piston ring | 1.7 mm |
| Ø piston pin (B) | 12 mm |
| Weight piston kit | 83 g |
| Sachs | 503 - AAL , ABL , 2AL / 2BL |
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